A method for operating new energy sharing among user groups

Abstract

The present invention discloses an operating method for sharing new energy among user groups. The method includes establishing an operating model, an operating cost model, and operating constraints through a regional proxy center within a constructed user group region under a new energy sharing interconnected structure; solving for electric energy sharing based on the operating model, operating cost model, and operating constraints to obtain new energy operation sharing information for the user group region; sharing the new energy operation sharing information among user group regions through the regional proxy center within the user group region, and controlling the operation of energy supply equipment within the user group region and the energy supply to users within the region. This embodiment enables the sharing of electric energy and new energy among users, improves the flexibility of electricity use, enhances overall economic efficiency, and reduces energy storage capacity configuration requirements.

Description

Technical Field

[0001] The present invention relates to the field of new energy sharing, and in particular to an operating method for new energy sharing among a user group. Background Art

[0002] With the continuous development of new energy sources such as wind power and photovoltaics, their penetration rate is also increasing. The uncertainty of wind and photovoltaic output poses challenges to the security and stability of regional microgrids and their ability to meet load demands. Integrating energy storage with wind and photovoltaic power generation can compensate for output fluctuations and facilitate the absorption of renewable energy output.

[0003] Traditional methods of absorbing new energy rely solely on the configuration of energy storage to handle renewable energy generation. The application of this method often requires addressing the high cost of energy storage. To promote the adoption of photovoltaic storage systems, a model of self-generation and self-consumption, with surplus power connected to the grid, has emerged. While this model has promoted the absorption of clean energy to a certain extent, it also has a significant impact on the power grid. Therefore, it is crucial to explore and design a model that can absorb new energy locally and reduce the impact on urban power grids. On the one hand, this requires increasing the utilization rate of new energy, and on the other hand, it also requires making the system more sustainable. In recent years, the sharing model has emerged, providing a reference for the full utilization of renewable energy. The application of the sharing model in power systems and their automation can improve the power system's ability to utilize resources. Summary of the Invention

[0004] The present invention provides an operating method for sharing new energy among user groups, which enables sharing of electric energy and new energy among users, improves the flexibility of electricity use, enhances overall economy, and reduces energy storage capacity configuration requirements.

[0005] In order to solve the above technical problems, an embodiment of the present invention provides an operation method for sharing new energy among user groups, including:

[0006] Under the new energy sharing interconnection structure of the constructed user group area, the operation mode, operation cost model and operation constraint conditions are constructed through the regional agent center of the user group area;

[0007] The electric energy sharing solution is performed based on the operation mode, operation cost model and operation constraints to obtain the new energy operation sharing information of the user group area. The new energy operation sharing information is shared between the user group areas through the regional agent center of the user group area, and the operation of the energy supply equipment in the user group area and the energy supply to users in the area are controlled.

[0008] In implementing the embodiment of the present invention, under the constructed new energy sharing interconnection structure of the user group area, the regional agent center of the user group area is used to construct an operation mode, an operation cost model, and an operation constraint condition; based on the operation mode, the operation cost model, and the operation constraint condition, the electric energy sharing solution is performed to obtain the new energy operation sharing information of the user group area; the regional agent center of the user group area shares the new energy operation sharing information between the user group areas, and controls the operation of the energy supply equipment in the user group area and the energy supply to the users in the area. The regional agent center of the user group area enables users to share electric energy, share the excess electric energy generated by new energy with nearby users, and allow new energy to be consumed nearby, thereby improving the flexibility of the system's electricity use and the overall economic efficiency, while also reducing the requirements for energy storage capacity configuration.

[0009] As a preferred solution, the new energy sharing interconnection structure of the user group area includes the inter-regional new energy sharing and interaction structure and the intra-regional power conversion structure;

[0010] Among them, user group areas include industrial areas, commercial areas and residential areas;

[0011] The specific structure of inter-regional new energy sharing and interaction is as follows: the user group area is shared by the regional agency center with the surplus electricity in the area. The user group area is equipped with power supply, energy storage equipment and power conversion devices. Flexible loads matching the region are set in the user group area. Water source heat pumps are installed in industrial areas to convert industrial wastewater into cold and heat energy. Air heat pumps are installed in residential areas for summer cooling. Ground source heat pumps are installed in commercial areas to take on the task of excessive heating. Among them, the power conversion devices include electric boilers, electric chillers, water source heat pumps, air heat pumps and ground source heat pumps.

[0012] The specific structure of power conversion in the region is as follows: the regional agency center in the user group area converts electrical energy into cold and hot energy through power conversion devices to supply cold and hot loads in the region; electric boilers are used to convert electrical energy into heat energy for supply during the heating season; and electric refrigerators are used to convert electrical energy into cold energy for supply during the cooling season.

[0013] By implementing the embodiments of the present invention, the water source heat pump in the regional electric energy conversion structure can utilize the low-grade thermal energy contained in the sewage to provide cooling and heating energy through a small amount of electric energy; the air source heat pump is highly safe, energy-saving and environmentally friendly, and can be used as the main equipment for cooling in summer; the ground source heat pump has a wide range of applications and low maintenance costs.

[0014] As a preferred solution, the specific operating mode is:

[0015] An operating model for user group areas is constructed according to different seasons. In the operating model, new energy in the user group area is converted to generate electricity, and the surplus electricity in the area is sold to other areas based on the real-time electricity price according to the regional new energy sharing interaction model. Different seasons are divided into different cold and heat energy supply modes through different seasonal power sharing models. The regional electric energy, heat energy and cold energy conversion model is used to provide the regional electric load, heat load and cold load. When using electricity in the area, the flexible load in the area is adjusted to meet the electricity supply and demand through the adjustment model of flexible loads in different areas.

[0016] Among them, the operation modes include cooling season mode, heating and cooling transition mode, heating season mode and heating and cooling transition mode;

[0017] The regional new energy sharing interactive model interacts with electricity and information through the regional proxy center in the user group area, aggregates resources within the user group area, and shares the electricity generated by new energy sources inside and outside the area. It also determines the real-time electricity price based on the demand for cooling and heating energy, and purchases electricity from the external power grid or region or sells surplus electricity at the real-time electricity price.

[0018] The regional electric energy, heat energy and cold energy conversion model converts electric energy into cold energy or heat energy by configuring electric energy conversion devices in the regional agent center of the user group area;

[0019] The flexible load regulation model for different regions models the flexible load differently according to different regions. The flexible load in the region is regulated by the regional agent center in the user group area. The flexible load operation in the industrial area is kept continuous, the residential area has the load that can be reduced, and the commercial area has the load that can be transferred.

[0020] The seasonal electricity sharing model adjusts the focus of cooling and heating according to different seasons, uses electricity to supplement cooling and heating energy, and sets the energy supply status of electric energy conversion devices in different areas according to different seasons.

[0021] In implementing the embodiment of the present invention, the operating mode of the system is divided into a cooling season mode, a cooling and heating transition mode, a heating season mode, and a heating and cooling transition mode according to different seasons. The cooling and heating load demands vary in different seasons, and the system's power utilization focus also varies. By designing different operating modes, the operating modes of the cooling and heating equipment are determined, avoiding the situation where some equipment provides both cooling and heating, or the same equipment frequently switches between cooling and heating operations. By setting the operating mode for the season, the situation of setting 0-1 variables to constrain the operating mode is avoided, reducing the complexity of the calculation. Flexible loads are commonly classified as shiftable loads, reducible loads, and transferable loads. In recent years, flexible loads such as air conditioners and electric vehicles have also emerged. By adjusting the use of these types of flexible loads, users can obtain economic incentives while also helping the power grid alleviate power consumption pressure or absorb new energy.

[0022] As a preferred solution, the real-time electricity price is determined based on the demand for cooling and heating energy, specifically:

[0023] Calculate the regional equivalent cooling energy demand by taking a weighted average of the efficiency coefficients of the electric energy conversion devices within the user group area; the regional equivalent cooling energy demand includes the equivalent cooling load of residential areas, the equivalent heating load of residential areas, the equivalent cooling load of commercial areas, the equivalent heating load of commercial areas, the equivalent cooling load of industrial areas, and the equivalent heating load of industrial areas;

[0024] Sum the regional equivalent cooling energy demand and the electrical energy load of all regions to calculate the total demand;

[0025] The electricity price supply-demand ratio is calculated based on the total demand and the total power supply in all regions. The formula is as follows:

[0026]

[0027] Among them, γ is the electricity price supply and demand ratio, P provision The total power supply for all regions, P need is the total demand;

[0028] The real-time electricity price is calculated based on the electricity price supply-demand ratio, the grid electricity purchase price, the grid electricity sales price and the intermediate electricity price. The formula is as follows:

[0029]

[0030] in, The real-time electricity price for each region to purchase electricity from external regions or power grids, The real-time electricity price for each region to sell electricity to external regions or the power grid, is the price of electricity purchased from the grid during period t, is the price of electricity sold to the grid during period t, is the middle electricity price during period t, is the electricity price supply-demand ratio during period t, for The reciprocal of is the marker amount.

[0031] In the implementation of the embodiment of the present invention, the real-time electricity price is determined according to the demand for cold and hot energy. The real-time electricity price taking into account the demand for cold and hot energy is adopted, and the demand for cold and hot energy is converted into equivalent electricity demand through the efficiency coefficient, forming a supply-demand ratio taking into account the demand for cold and hot energy, and thereby deriving the real-time electricity price taking into account the demand for cold and hot energy. The electricity sales price and the electricity purchase price between regions are the real-time electricity prices determined according to the energy demand of each region, which makes the real-time electricity price more effective and reasonable, and improves the economic efficiency of operation of each region.

[0032] As a preferred solution, the operating cost model is as follows:

[0033] The regional agency center in the user group area takes the minimum total operating cost as the objective function and constructs the operating cost model;

[0034] Among them, the total operating cost is the sum of the total operating cost of the industrial area, the total operating cost of the residential area and the total operating cost of the commercial area.

[0035] As the preferred option, the total operating cost of the industrial zone is as follows:

[0036] Industrial costs include natural gas consumption costs of gas turbines in industrial areas, operation and maintenance costs of wind turbines in industrial areas, total photovoltaic operation and maintenance costs in industrial areas, energy storage costs in industrial areas, compensation costs for shiftable loads in industrial areas, operation and maintenance costs of electric energy conversion devices in industrial areas, electricity purchase costs in industrial areas, and income from electricity sales in industrial areas.

[0037] According to the actual consumption of various costs in the industrial zone, the industrial cost is calculated using the following formula:

[0038]

[0039] Among them, C GB,gy is the natural gas consumption cost of gas turbines in industrial areas, p GB is the unit consumption cost of natural gas, G GB,gy (t) is the natural gas consumption at time t, and T1, T2, T3, and T4 are the operating cycles under different operating modes respectively;

[0040]

[0041] Among them, C WT,gy is the operation and maintenance cost of wind turbines in industrial areas, p WT is the unit power operation and maintenance cost of the wind turbine, P WT,gy (t) is the power of wind turbines in the industrial area at time t;

[0042]

[0043] Among them, C PV,gy is the total photovoltaic operation and maintenance cost of the industrial area, p PV is the photovoltaic unit power operation and maintenance cost, P PV,gy (t) is the photovoltaic power of the industrial area at time t;

[0044]

[0045] Among them, C ES,gy is the energy storage cost in the industrial area, p ES is the unit loss cost of energy storage, P ES,gy (t) is the energy storage charging and discharging power;

[0046]

[0047] Among them, C L,gy is the compensation cost of the movable load in the industrial area, p L,gy,i is the compensation price per unit load power, P sum,gy,i is the sum of the powers of the ith translatable load, y i,τ is the state of the ith translatable load, y i,τ =1 means that the i-th translatable load starts from the τ period, is the original starting time period of the i-th shiftable load in the industrial zone, and the acceptable shifting time period is t Di is the time period of the ith translatable load, and τ is the time to determine the start of the flexible load;

[0048]

[0049] in, is the operation and maintenance cost of the power conversion device in the industrial area, p ER,gy is the unit power operation and maintenance cost of the electric refrigerator, is the output power of the electric refrigerator, p EB,gy is the unit power operation and maintenance cost of the electric boiler, is the power of electric boiler, p WP is the operation and maintenance cost of the water source heat pump, is the water source heat pump power, T m , m = 1, 2, 3, 4 are the operating cycles under different operating modes;

[0050]

[0051] in, The cost of purchasing electricity for industrial areas, The electric power purchased by the industrial zone from outside the zone or the power grid, The real-time electricity price for each region when purchasing electricity from external regions or the power grid;

[0052]

[0053] in, For the income from electricity sales in industrial areas, The electric power sold by the industrial zone to the outside of the zone or the power grid, The real-time electricity price for each region to sell electricity to external regions or the grid;

[0054] Based on the industrial cost, the total operating cost of the industrial zone is calculated as follows:

[0055]

[0056] Among them, C gyis the total operating cost of the industrial zone.

[0057] As the preferred option, the total operating cost of the residential area is as follows:

[0058] Residential costs include natural gas consumption costs of gas turbines in residential areas, operation and maintenance costs of wind turbines in residential areas, operation and maintenance costs of total photovoltaic power generation in residential areas, energy storage costs in residential areas, compensation costs for load reduction in residential areas, compensation costs for electric vehicles in residential areas, operation and maintenance costs of electric energy conversion devices in residential areas, electricity purchase costs in residential areas, and income from electricity sales in residential areas.

[0059] Based on the actual consumption of various costs in the residential area, the resident cost is calculated using the following formula:

[0060]

[0061] Among them, C GB,jm is the natural gas consumption cost of gas turbines in residential areas, p GB is the unit consumption cost of natural gas, G GB,jm (t) is the natural gas consumption at time t;

[0062]

[0063] Among them, C WT,jm is the operation and maintenance cost of wind turbines in residential areas, p WT is the unit power operation and maintenance cost of the wind turbine, P WT,jm (t) is the power of the wind turbine at time t;

[0064]

[0065] Among them, C PV,jm is the total photovoltaic operation and maintenance cost of the residential area, p PV is the photovoltaic unit power operation and maintenance cost, P PV,jm (t) is the photovoltaic power at time t;

[0066]

[0067] Among them, C ES,jm is the energy storage cost in residential areas, p ES is the unit loss cost of energy storage, P ES,jm (t) is the energy storage charging and discharging power;

[0068]

[0069] Among them, C L,jm is the compensation cost for load reduction in residential areas, p L,jm,i is the compensation price per unit load power that can be reduced, P L,jm,i is the power of the i-th load that can be reduced, CfixL,jm,i,t is the fixed compensation for load reduction during period t, u i,τ is the i-th state where load can be reduced, u i,t =1 means that the i-th curtailable load is curtailed in period t;

[0070]

[0071] Among them, C EV,jm Compensation costs for electric vehicles in residential areas, p EV is the unit power compensation cost of electric vehicles when discharging, N EV,jm is the number of electric vehicles in residential areas, P EV,jm,i (t) is the discharge power of electric vehicle i at time t.

[0072]

[0073] in, is the operation and maintenance cost of the electric energy conversion device in the residential area, p ER,jm is the unit power operation and maintenance cost of the electric refrigerator, is the output power of the electric refrigerator, p EB,jm is the unit power operation and maintenance cost of the electric boiler, Power of electric boiler, p wp,jm is the unit power operation and maintenance cost of the water source heat pump, Power of water source heat pump, p AP,jm is the unit power operation and maintenance cost of the air heat pump, is the power of the air heat pump;

[0074]

[0075] in, The cost of purchasing electricity for residential areas, The electricity power purchased by the residential area from outside the area or the power grid, The real-time electricity price for each region when purchasing electricity from external regions or the power grid;

[0076]

[0077] in, The income from electricity sales in residential areas, It is the electric power sold by the residential area to the outside or the power grid. The real-time electricity price for each region to sell electricity to external regions or the grid;

[0078] Based on the resident cost, the total operating cost of the residential area is calculated as follows:

[0079]

[0080] Among them, Cjm is the total operating cost of the residential area.

[0081] As the preferred option, the total operating cost of the commercial area is as follows:

[0082] Commercial costs include natural gas consumption costs of gas turbines in commercial areas, operation and maintenance costs of wind turbines in commercial areas, operation and maintenance costs of total photovoltaic power generation in commercial areas, energy storage costs in commercial areas, compensation costs for load reduction in commercial areas, compensation costs for electric vehicles in commercial areas, operation and maintenance costs of electric energy conversion devices in commercial areas, electricity purchase costs in commercial areas, and income from electricity sales in commercial areas.

[0083] According to the actual consumption of various costs in the commercial area, the commercial cost is calculated using the following formula:

[0084]

[0085] Among them, C GB,sy is the natural gas consumption cost of gas turbines in commercial areas, p GB is the unit consumption cost of natural gas, G GB,sy (t) is the natural gas consumption at time t;

[0086]

[0087] Among them, C WT,sy is the operation and maintenance cost of wind turbines in commercial areas, p WT is the unit power operation and maintenance cost of the wind turbine, P WT,sy (t) is the power of the wind turbine at time t;

[0088]

[0089] Among them, C PV,sy is the total photovoltaic operation and maintenance cost of the commercial area, p PV is the photovoltaic unit power operation and maintenance cost, P PV,sy (t) is the photovoltaic power at time t;

[0090]

[0091] Among them, C ES,sy is the energy storage cost in commercial areas, p ES is the unit loss cost of energy storage, P ES,sy (t) is the energy storage charging and discharging power.

[0092]

[0093] Among them, C L,sy is the compensation cost for the transferable load in the commercial area, P L,sy,i is the power of the i-th transferable load, v i,τis the state of the i-th transferable load, v i,t =1 means the i-th transferable load is running in period t.

[0094]

[0095] Among them, C EV,sy Compensation costs for electric vehicles in commercial areas, p EV is the unit power compensation cost of electric vehicles when discharging, N EV,sy is the number of electric vehicles in the commercial area, P EV,sy,i (t) is the discharge power of electric vehicle i at time t.

[0096]

[0097] in, is the operation and maintenance cost of the electric energy conversion device in the commercial area, p ER,sy is the unit power operation and maintenance cost of the electric refrigerator, is the output power of the electric refrigerator, p EB,sy is the unit power operation and maintenance cost of the electric boiler, is the power of electric boiler, p GP,sy is the unit power operation and maintenance cost of the ground source heat pump, Power of ground source heat pump, p AP,sy is the unit power operation and maintenance cost of the air heat pump, is the power of the air heat pump;

[0098]

[0099] in, The cost of purchasing electricity for commercial areas, The electricity purchased by the commercial area from outside the area or the power grid, The real-time electricity price for each region when purchasing electricity from external regions or the power grid;

[0100]

[0101] in, For the income from electricity sales in commercial areas, The electric power sold by the commercial area to the outside of the area or the power grid, The real-time electricity price for each region to sell electricity to external regions or the grid;

[0102] Based on the commercial costs, the total operating costs of the commercial area are calculated as follows:

[0103]

[0104] Among them, C jm is the total operating cost of the commercial area.

[0105] As the preferred solution, the operation constraints include energy constraints of the industrial zone agent center, energy constraints of the residential zone agent center, energy constraints of the commercial zone agent center and flexible load constraints;

[0106] The energy constraint of the industrial zone agent center is established based on the operation mode and the power of each device in the industrial zone. The formula is as follows:

[0107]

[0108] Among them, P GB,gy (t) is the power generation capacity of gas turbine in industrial area, P WT,gy (t) is the wind power generation power in the industrial area, P PV,gy (t) is the total photovoltaic power generation power of the industrial area, Pd ES,gy (t) is the energy storage discharge power in the industrial area, P is the power purchased by the industrial area from the external power grid or region. L,gy (t) is the flexible load power of the industrial area, P BL,gy,i (t), P PV,gy,i (t), N gy are the base load of the i-th user in the industrial zone, the photovoltaic output power of the i-th user in the industrial zone, and the number of users in the industrial zone, respectively. ES,gy (t) is the energy storage charging power in the industrial area, The power sold by the industrial area to the external power grid or region, The total power consumed by the equipment that converts electrical energy into cooling and heating energy in the industrial area;

[0109]

[0110] in, is the heat load of the industrial zone under the m operation mode, is the thermal power generated by the water source heat pump in the industrial zone m operation mode, is the thermal power generated by the electric boiler in the industrial zone m operating mode;

[0111]

[0112] in, is the cooling load in the industrial zone under the m operation mode, is the cooling power generated by the electric refrigerator in the industrial zone under the m operation mode;

[0113] The energy constraint of the residential agent center is established based on the operation mode and the power of each device in the residential area. The formula is as follows:

[0114]

[0115] Among them, PGB,jm (t) is the power generation of gas turbine in residential area, P WT,jm (t) is the wind power generation power in residential areas, P PV,jm (t) is the total photovoltaic power generation power in the residential area, Pd EV,jm (t) is the discharge power of electric vehicles in residential areas, Pd ES,jm (t) is the energy storage discharge power in residential areas, P is the power purchased by the residential area from the external power grid or region. L,jm (t) is the flexible load power in residential areas, P BL,jm,i (t), P PV,jm,i (t), N jm are the base load of the i-th user in the residential area, the photovoltaic output power of the i-th user in the residential area, and the number of users in the residential area, respectively. EV,jm (t) is the charging power of electric vehicles in residential areas, Pc ES,jm (t) is the energy storage charging power in residential areas, The power sold by residential areas to external power grids or regions, The total power consumed by equipment that converts electrical energy into cooling and heating energy in residential areas.

[0116]

[0117] in, is the heat load of the residential area under the operating mode m, is the thermal power generated by the air source heat pump in the residential area m operation mode, is the thermal power generated by the water source heat pump in the residential area m operation mode, is the thermal power generated by the electric boiler in the residential area m operating mode;

[0118]

[0119] in, is the cooling load of the residential area under the m operation mode, is the cooling power generated by the electric refrigerator in the residential area under the m operation mode, is the cooling power generated by the air source heat pump in the residential area under the m operation mode, is the cooling power generated by the water source heat pump in the residential area m operation mode;

[0120] The energy constraint of the commercial district agency center is established based on the operating mode and the power of each device in the commercial district. The formula is as follows:

[0121]

[0122] Among them, P L,sy (t) is the flexible load power in the commercial area, P GB,sy(t) is the power generation capacity of gas turbine in commercial area, P WT,sy (t) is the wind power generation power in the commercial area, P PV,sy (t) is the total photovoltaic power generation power in the commercial area, Pd EV,sy (t) is the discharge power of electric vehicles in commercial areas, Pd ES,sy (t) is the energy storage discharge power in the commercial area, P is the power purchased by the commercial area from the external power grid or region. L,sy (t) is the flexible load power in the commercial area, P BL,sy,i (t), P PV,sy,i (t), N sy are the base load of the i-th user in the commercial area, the photovoltaic output power of the i-th user in the commercial area, and the number of users in the commercial area, Pc EV,sy (t) is the charging power of electric vehicles in the commercial area, Pc ES,sy (t) is the energy storage charging power in the commercial area, The power sold by the commercial area to the external grid or region, The total power consumed by the equipment that converts electrical energy into cooling and heating energy in the commercial area;

[0123]

[0124] in, is the heat load of the commercial area under the m operation mode, is the thermal power of the commercial area air source heat pump, is the thermal power of the ground source heat pump in the commercial area, is the thermal power of the electric boiler;

[0125]

[0126] in, is the cooling load in the commercial area under the m operation mode, is the cooling power of the electric refrigerator in the commercial area, is the cooling power of the air source heat pump in the commercial area, The cooling power of the ground source heat pump in the commercial area;

[0127] Flexible load constraints include flexible load constraints in industrial areas, flexible load constraints in residential areas, flexible load constraints in commercial areas, gas turbine constraints, power conversion equipment constraints in industrial areas, power conversion equipment constraints in residential areas, power conversion equipment constraints in commercial areas, energy storage constraints and electric vehicle constraints.

[0128] As a preferred solution, the power sharing solution is performed based on the operation mode, operation cost model and operation constraints, and the new energy operation sharing information of the user group area is obtained, specifically:

[0129] The particle swarm algorithm is used to find the optimal solution for the operation mode and operation cost model with constraints as constraints, and the new energy operation sharing information of the user group area is obtained.

[0130] In implementing the embodiment of the present invention, operating constraints are used as constraints of the model, so that the objective function seeks the optimal solution of the model based on the operating constraints of the entire system under the constructed model. That is, under the objective function of minimum cost, the sharing of new energy between each region is optimized, the operating output of gas turbines, wind power, photovoltaics, cold and heat energy supply equipment, etc. is optimized, and the new energy in each region is efficiently utilized. BRIEF DESCRIPTION OF THE DRAWINGS

[0131] Figure 1 : A flow chart of an embodiment of an operating method for sharing new energy among user groups provided by the present invention;

[0132] Figure 2 : A simplified flow chart of an operating method of an embodiment of an operating method for sharing new energy among user groups provided by the present invention;

[0133] Figure 3 : A system operation framework diagram of an embodiment of an operation method for sharing new energy among user groups provided by the present invention;

[0134] Figure 4 : A commercial area power conversion framework diagram of an embodiment of a method for operating a user group's new energy sharing provided by the present invention;

[0135] Figure 5 : A residential area electric energy conversion framework diagram of an embodiment of an operation method for user group new energy sharing provided by the present invention;

[0136] Figure 6 : An industrial area power conversion framework diagram of an embodiment of an operation method for sharing new energy among user groups provided by the present invention. DETAILED DESCRIPTION

[0137] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making any creative efforts shall fall within the scope of protection of the present invention.

[0138] Example 1

[0139] Please refer to Figure 1 , which is a flow chart of an operation method for sharing new energy among user groups provided by an embodiment of the present invention, wherein the simplified process of the operation method is as follows Figure 2 As shown. The operating method of this embodiment is applicable to the utilization of resources in the power system. This embodiment uses the new energy sharing interconnection structure of the user group area to share electricity and new energy between users, thereby improving the flexibility of electricity use. The operating method includes steps 101 to 104, each of which is as follows:

[0140] Step 101: Under the constructed new energy sharing interconnection structure of the user group area, an operation mode, an operation cost model and operation constraints are constructed through the regional agent center of the user group area.

[0141] Optionally, the new energy sharing and interconnection structure of the user group area includes an inter-regional new energy sharing and interaction structure and an intra-regional electric energy conversion structure; wherein, the user group area includes industrial areas, commercial areas and residential areas; the inter-regional new energy sharing and interaction structure is specifically as follows: the user group area is shared by the regional agency center for surplus electricity in the area, the user group area is equipped with power supplies, energy storage equipment and electric energy conversion devices, flexible loads matching the area are set in the user group area, water source heat pumps are set in the industrial area to convert industrial wastewater into cold energy and heat energy, air heat pumps are set in the residential area for cooling in summer, and ground source heat pumps are set in the commercial area to undertake excessive heating tasks; wherein, the electric energy conversion devices include electric boilers, electric refrigerators, water source heat pumps, air heat pumps and ground source heat pumps; the intra-regional electric energy conversion structure is specifically as follows: the regional agency center of the user group area converts electric energy into cold and hot energy to supply cold and hot loads through electric energy conversion devices in the area, electric boilers are used to convert electric energy into heat energy for supply in the heating season, and electric refrigerators are used to convert electric energy into cold energy for supply in the cooling season.

[0142] It should be noted that the regional power interconnection architecture is based on three user groups: industrial, commercial, and residential. Each region has a proxy center, and the three regions share power as a whole. Users within each region have their own photovoltaic and flexible loads. They can transfer surplus photovoltaic power to their regional proxy center for use. Users in each region can also adjust the use of their flexible loads to receive financial incentives. The regional proxy center is responsible for operating the wind turbines, gas turbines, and gas boilers within the region, supplying electricity, cooling, and heating to users within the region. The proxy center also shares surplus photovoltaic and wind power within the region based on information such as inter-regional electricity prices, grid electricity prices, and demand for electricity, cooling, and heating loads within and outside the region. Surplus power can be shared within the region, shared outside the region, and sold to the grid. The inter-regional electricity sales and purchase prices are real-time prices determined based on the energy demand of each region. Revenue distribution is determined based on the contribution of each user within the region to the region. According to different seasons, the system's operating mode is divided into cooling season mode, heating season mode and hot-cold transition season mode (cold-heat transition mode and hot-cold transition mode). The cooling and heating load demands are different in different seasons, and the system's power utilization focus is also different.

[0143] In this embodiment, the inter-regional new energy sharing and interaction structure proposes a framework for sharing electricity among three areas: industrial areas, commercial areas, and residential areas. Figure 3 As shown, each zone has wind turbines, distributed photovoltaic power generation for users within the zone, energy storage, gas turbines, and cooling and heating supply equipment. Each zone's proxy center shares surplus photovoltaic and wind power based on real-time inter-regional electricity prices, grid electricity prices, and demand for electricity, cooling, and heating loads within and outside the zone. Surplus power can be shared within the zone, shared externally, and sold to the grid. Each zone's power source is gas turbines, wind power, distributed photovoltaic power generation, and energy storage. Each zone also has cooling and heating supply equipment, namely, power conversion devices including electric boilers, electric chillers, and heat pumps. Industrial zones are equipped with water-source heat pumps to convert industrial wastewater into cooling and heating energy. Residential zones are equipped with air-source heat pumps for summer cooling, utilizing nearby river water or sewage. Commercial zones are equipped with low-operation-and-maintenance ground-source heat pumps for heating and cooling, facilitating transitions between the cooling and heating seasons. In summer, air-source heat pumps support cooling energy supply. Flexible loads in industrial zones are shiftable; those in commercial zones are transferable; and those in residential zones are interruptible. Commercial and residential areas also have electric vehicle resources.

[0144] In this embodiment, the design of the power conversion structure in the region includes power conversion in three areas, the power conversion framework of the commercial area, such as Figure 4 As shown in the figure, the residential area power conversion framework is as follows: Figure 5 As shown in the figure, the industrial zone power conversion framework is as follows: Figure 6 As shown, after receiving regional shared electricity, gas turbine power generation, grid electricity sales, and wind-solar-storage power output, regional distribution centers can convert electricity into cooling and heating energy through electric chillers, heat pumps, and electric boilers to supply cooling and heating loads within the region. Electric boilers convert electricity into heat energy for supply during the heating season. Electric chillers convert electricity into cooling energy for supply during the cooling season. Water-source heat pumps utilize the low-grade heat energy contained in sewage to provide cooling and heating energy with a small amount of electricity. Air-source heat pumps are highly safe, energy-efficient, and environmentally friendly, making them suitable as the primary cooling device in summer. Ground-source heat pumps have a wide range of applications and low maintenance costs.

[0145] By implementing the embodiments of the present invention, the water source heat pump in the regional electric energy conversion structure can utilize the low-grade thermal energy contained in the sewage to provide cooling and heating energy through a small amount of electric energy; the air source heat pump is highly safe, energy-saving and environmentally friendly, and can be used as the main equipment for cooling in summer; the ground source heat pump has a wide range of applications and low maintenance costs.

[0146] Optionally, the operation mode is specifically as follows: constructing an operation mode for the user group area according to different seasons, in which new energy is converted in the user group area to generate electricity, and the surplus electricity in the area is sold to other areas based on the real-time electricity price according to the regional new energy sharing interaction model, and different seasons are divided into different cold and heat energy supply modes through different seasonal electricity sharing models, and the electric load, heat load and cold load in the area are provided through the electric energy, heat energy and cold energy conversion model in the area, and when electric energy is used in the area, the flexible load in the area is adjusted to meet the electricity supply and demand through the adjustment model of the flexible load in different areas; wherein, the operation mode includes the cooling season mode, the cooling and heating transition mode, the heating season mode and the heating and cooling transition mode;

[0147] In this embodiment, the system operation mode is constructed. The operation mode of each area of ​​the system is constructed according to different seasons. The system operation model for different seasons is shown in Table 1 below:

[0148] Table 1 System operation models in different seasons

[0149]

[0150] Industrial areas constantly experience a significant heat load due to production needs. Therefore, in all four modes, industrial areas maintain heating using electric boilers and water-source heat pumps. The water-source heat pumps, which utilize wastewater from the production process, operate in all four seasons and provide both cooling and heating for the industrial area. The electric chillers are activated only during the cooling season or during the transition to the cooling season. Residential and commercial areas operate in essentially the same manner, with electric chillers maintaining cooling capacity and electric boilers maintaining heating capacity. Air heat pumps provide centralized cooling, heating only during the heating season and cooling the rest of the time. Water-source heat pumps / geostationary heat pumps provide centralized heating, cooling only during the cooling season and heating the rest of the time. By designing different operating modes, the operating modes of cooling and heating devices are fixed, preventing some devices from operating both cooling and heating, or the same device from frequently switching between cooling and heating modes. Furthermore, by defining operating modes for each season, the need for constraining operating modes through the use of 0-1 variables is avoided, reducing computational complexity.

[0151] Optionally, the regional new energy sharing interaction model interacts with electricity and information through the regional agent center in the user group area, aggregates the resources within the user group area, shares the electricity generated by new energy inside and outside the area, and determines the real-time electricity price based on the demand for cold and hot energy, and purchases electricity or sells surplus electricity to the external power grid or region at the real-time electricity price.

[0152] In this embodiment, when operating an interactive model for inter-regional renewable energy sharing, regional agents share the electricity generated by renewable energy. To fully absorb wind and photovoltaic power generation and enable the full utilization of renewable energy across multiple regions, a framework for power sharing among industrial, commercial, and residential areas is proposed, emphasizing the differences in energy sources and flexible loads between regions. Each region has an agent center to facilitate power and information exchange, aggregate resources within the region, and share power across and beyond the region, significantly reducing the number of transmission lines between users.

[0153] Optionally, the real-time electricity price is determined based on the demand for cooling and heating energy, specifically by taking a weighted average of the efficiency coefficients of the electric energy conversion devices in the user group area to calculate the regional equivalent cooling energy demand; wherein the regional equivalent cooling energy demand includes the equivalent cooling load of the residential area, the equivalent heating load of the residential area, the equivalent cooling load of the commercial area, the equivalent heating load of the commercial area, the equivalent cooling load of the industrial area, and the equivalent heating load of the industrial area; the regional equivalent cooling energy demand is summed with the electric energy load of all areas to calculate the total demand;

[0154] In this embodiment, the real-time electricity price that takes into account the demand for cold and hot energy, the original real-time electricity price is to determine the electricity selling price and the electricity purchasing price by considering the supply and demand ratio of electricity. According to the supply and demand ratio, the shared electricity selling price and the shared electricity selling price are adjusted in real time. The real-time electricity price that takes into account the demand for cold and hot energy is adopted, and the demand for cold energy and heat energy is converted into equivalent electricity demand through the efficiency coefficient, forming a supply and demand ratio that takes into account the demand for cold energy and heat energy, and the real-time electricity price that takes into account the demand for cold energy and heat energy is derived from this. The real-time electricity price that takes into account the demand for cold energy and heat energy is applied to the regional new energy sharing interaction model. Each region purchases electricity or sells surplus electricity to the external power grid or region through the real-time electricity price. The efficiency coefficients of the electric energy conversion equipment in the region are weighted averaged to calculate the equivalent cold energy demand of the region. The formula is as follows:

[0155]

[0156] in, is the cooling load of the residential area under mode m, is the heat load of the residential area under mode m, X is the variable used to represent the equipment, WP represents water source heat pump, AP represents air source heat pump, ER represents electric refrigerator, EB represents electric boiler, ωc X,jm The weight coefficient assigned to the cooling efficiency coefficient of the cooling energy supply device in the residential area, ωh X,jm The weight coefficient assigned to the heating efficiency coefficient of the heat supply device in the residential area, ωc WP,jm The weight coefficient assigned to the cooling efficiency coefficient of the water source heat pump in the residential area, ωc AP,jm The weight coefficient assigned to the cooling efficiency coefficient of the air source heat pump in the residential area, ωc ER,jmThe weight coefficient assigned to the cooling efficiency coefficient of the electric refrigerator in the residential area, ωh WP,jm The weight coefficient assigned to the heating efficiency coefficient of the water source heat pump in the residential area, ωh AP,jm The weight coefficient assigned to the heating efficiency coefficient of the air source heat pump in the residential area, ωh EB,jm Kc is the weight coefficient assigned to the heating efficiency coefficient of electric boilers in residential areas. X is the refrigeration efficiency coefficient of each refrigeration equipment, Kh X Kc is the heating efficiency coefficient of each heating equipment WP is the cooling efficiency coefficient of the water source heat pump, Kc AP is the air source heat pump cooling efficiency coefficient, Kc ER is the refrigeration efficiency coefficient of the electric refrigerator, Kh WP is the heating efficiency coefficient of the water source heat pump, Kh AP is the heating efficiency coefficient of the air source heat pump, Kh EB is the heating efficiency coefficient of the electric boiler, are the equivalent cooling load and heating load of the residential area, is the equivalent cooling load conversion coefficient of the residential area, is the equivalent heat load conversion coefficient of residential areas.

[0157]

[0158]

[0159] in, is the cooling load in the commercial area under mode m, is the heat load of the commercial area under mode m, X is the variable used to represent the equipment, GP represents the ground source heat pump, AP represents the air source heat pump, ER represents the electric refrigerator, EB represents the electric boiler, ωc X,sy The weight coefficient assigned to the cooling efficiency coefficient of different cooling energy supply devices in the commercial area, ωh X,sy The weight coefficient assigned to the heating efficiency coefficient of different heat supply devices in the commercial area, ωc GP,sy The weight coefficient assigned to the cooling efficiency coefficient of the ground source heat pump in the commercial area, ωc AP,sy The weight coefficient assigned to the commercial area air source heat pump cooling efficiency coefficient, ωc ER,sy The weight coefficient assigned to the refrigeration efficiency coefficient of the commercial electric refrigeration unit, ωh GP,sy The weight coefficient assigned to the heating efficiency coefficient of the ground source heat pump in the commercial area, ωh AP,sy The weight coefficient assigned to the heating efficiency coefficient of the commercial area air source heat pump, ωh EB,sy Kc is the weight coefficient assigned to the heating efficiency coefficient of electric boilers in commercial areas. X is the refrigeration efficiency coefficient of each refrigeration equipment, Kh XKc is the heating efficiency coefficient of each heating equipment GP is the cooling efficiency coefficient of the ground source heat pump, Kc AP is the air source heat pump cooling efficiency coefficient, Kc ER is the refrigeration efficiency coefficient of the electric refrigerator, Kh GP is the heating efficiency coefficient of the ground source heat pump, Kh AP is the heating efficiency coefficient of the air source heat pump, Kh EB is the heating efficiency coefficient of the electric boiler, are the equivalent cooling load and heating load of the commercial area, is the equivalent cooling load conversion coefficient for commercial areas, is the equivalent heat load conversion coefficient for commercial areas.

[0160]

[0161]

[0162] in, is the cooling load of the industrial area under mode m, is the heat load of the industrial zone under mode m, X is the variable used to represent the equipment, WP represents the water source heat pump, ER represents the electric refrigerator, EB represents the electric boiler, ωc X,gy The weight coefficient assigned to the refrigeration efficiency coefficient of different cooling energy supply devices in the industrial area, ωh X,gy The weight coefficient assigned to the heating efficiency coefficient of different thermal energy supply devices in the industrial area, ωc ER,gy The weight coefficient assigned to the refrigeration efficiency coefficient of the industrial electric refrigeration unit, ωh WP,gy The weight coefficient assigned to the heating efficiency coefficient of the water source heat pump in the industrial area, ωh EB,gy Kc is the weight coefficient assigned to the heating efficiency coefficient of the industrial area electric boiler. X is the refrigeration efficiency coefficient of each refrigeration equipment, Kh X Kc is the heating efficiency coefficient of each heating equipment ER is the refrigeration efficiency coefficient of the electric refrigerator, Kh WP is the heating efficiency coefficient of the water source heat pump, Kh EB is the heating efficiency coefficient of the electric boiler, are the equivalent cooling load and heating load of the industrial area, is the equivalent cooling load conversion coefficient of the industrial area, is the equivalent heat load conversion coefficient of the industrial area.

[0163]

[0164] Among them, P need is the total demand, P need,all It is the sum of the electric energy loads in all regions.

[0165] The electricity price supply-demand ratio is calculated based on the total demand and the total power supply in all regions. The formula is as follows:

[0166]

[0167] Among them, γ is the electricity price supply and demand ratio, P provision The total power supply for all regions, P need is the total demand;

[0168] The real-time electricity price is calculated based on the electricity price supply-demand ratio, the grid electricity purchase price, the grid electricity sales price and the intermediate electricity price. The formula is as follows:

[0169]

[0170]

[0171] in, The real-time electricity price for each region to purchase electricity from external regions or power grids, The real-time electricity price for each region to sell electricity to external regions or the power grid, is the price of electricity purchased from the grid during period t, is the price of electricity sold to the grid during period t, is the middle electricity price during period t, is the electricity price supply-demand ratio during period t, for The reciprocal of is the marker amount.

[0172] In the implementation of the embodiment of the present invention, the real-time electricity price is determined according to the demand for cold and hot energy. The real-time electricity price taking into account the demand for cold and hot energy is adopted, and the demand for cold and hot energy is converted into equivalent electricity demand through the efficiency coefficient, forming a supply-demand ratio taking into account the demand for cold and hot energy, and thereby deriving the real-time electricity price taking into account the demand for cold and hot energy. The electricity sales price and the electricity purchase price between regions are the real-time electricity prices determined according to the energy demand of each region, which makes the real-time electricity price more effective and reasonable, and improves the economic efficiency of operation of each region.

[0173] Optionally, the regional electric energy, thermal energy and cold energy conversion model converts electric energy into cold energy or heat energy by configuring an electric energy conversion device in a regional agent center in the user group area.

[0174] In this embodiment, when operating a regional power-heat-cooling conversion model, each regional agent performs power-heat-cooling conversion for its own region. Heat pumps, electric boilers, electric refrigerators, and other equipment are deployed within the region to convert electricity into cooling and heat, complementing the gas turbine's cooling and heating capabilities. Combined with real-time electricity prices, this fully utilizes surplus wind and solar power, reducing energy storage costs. Users within the region simply transmit surplus photovoltaic power to the agent center for sharing, improving interaction efficiency and reducing the number of information processing steps for users.

[0175] Optionally, the regulation model of flexible loads in different regions models the flexible loads differently according to different regions, and the flexible loads in the region are regulated by the regional agent center in the user group area. The flexible load operation in the industrial area is kept continuous in time, the residential area has a reducible load, and the commercial area has a transferable load.

[0176] In this embodiment, the regulation model of flexible loads in different regions performs differentiated modeling of flexible loads according to different regions. The agent of each region in the regulation model of flexible loads in different regions provides flexibility to alleviate the contradiction between power supply and demand by regulating the flexible loads in the region. The operation of flexible loads in industrial areas emphasizes time continuity. After the load starts running, it needs to continue for a certain period of time to ensure the completion of production, that is, to maintain time continuity. Therefore, the industrial area has a shiftable load; residential and commercial areas have electric vehicles, residential areas have a reducible load, and commercial areas have a transferable load. The economic activities in the commercial area need to be concentrated during business hours, and there is almost no load demand after closing. Therefore, the interruptible load is not adjusted in the commercial area.

[0177] Optionally, the seasonal electricity sharing model adjusts the focus of cooling and heating according to different seasons, uses electricity to supplement cooling and heating energy, and sets the energy supply status of electric energy conversion devices in different areas according to different seasons.

[0178] In this embodiment, while the industrial zone still experiences a certain heat load demand year-round, the system should adjust its cooling and heating priorities seasonally to better utilize electricity to supplement cooling and heating. The system operating modes are categorized into cooling season mode, transition mode, heating season mode, and transition mode. By improving real-time electricity pricing, cooling and heating load demand is incorporated into power sharing activities. The executing entity for this region is the cooling and heating energy supply devices of all zones, and the power supply status of each zone is regulated according to the season. After each zone generates electricity from renewable energy, it sells its surplus electricity to other zones based on the real-time electricity price according to the inter-regional renewable energy sharing interactive model. Each zone is assigned different cooling and heating energy supply modes based on the season. After receiving electricity from within the zone, external sources, and the power grid, the regional power, heating, and cooling loads are met through the regional power, heating, and cooling energy conversion model. When using electricity within the zone, different zones can flexibly mitigate power supply and demand conflicts based on their own flexible loads.

[0179] In implementing the embodiment of the present invention, the operating mode of the system is divided into a cooling season mode, a cooling and heating transition mode, a heating season mode, and a heating and cooling transition mode according to different seasons. The cooling and heating load demands vary in different seasons, and the system's power utilization focus also varies. By designing different operating modes, the operating modes of the cooling and heating equipment are determined, avoiding the situation where some equipment provides both cooling and heating, or the same equipment frequently switches between cooling and heating operations. By setting the operating mode for the season, the situation of setting 0-1 variables to constrain the operating mode is avoided, reducing the complexity of the calculation. Flexible loads are commonly classified as shiftable loads, reducible loads, and transferable loads. In recent years, flexible loads such as air conditioners and electric vehicles have also emerged. By adjusting the use of these types of flexible loads, users can obtain economic incentives while also helping the power grid alleviate power consumption pressure or absorb new energy.

[0180] Optionally, an operating cost model is as follows: the regional agent center of the user group area takes the minimum total operating cost as the objective function to construct an operating cost model; wherein the total operating cost is the sum of the total operating cost of the industrial area, the total operating cost of the residential area and the total operating cost of the commercial area.

[0181] In this embodiment, the objective function for minimizing total operating cost is used. The four proposed models (the regional new energy sharing interaction model, the regional electric energy, heat energy, and cooling energy conversion model, the flexible load regulation model for different regions, and the seasonal electric energy sharing model) are all operated based on this objective function. The total operating cost is the sum of the operating costs of the industrial zone, the residential zone, and the commercial zone, which constitute the operating cost model. That is, the total objective function model is constructed. The objective function for constructing the user group "wind-solar-storage" new energy sharing and optimized interactive operation is to minimize the total operating cost of the three regions:

[0182] min(C gy +C jm +C sy )

[0183] Among them, C gy 、C jm 、C sy They are the total operating costs of industrial areas, residential areas and commercial areas respectively.

[0184] In this embodiment, the total operating cost of the industrial zone is specifically:

[0185] Industrial costs include natural gas consumption costs of gas turbines in industrial areas, operation and maintenance costs of wind turbines in industrial areas, total photovoltaic operation and maintenance costs in industrial areas, energy storage costs in industrial areas, compensation costs for shiftable loads in industrial areas, operation and maintenance costs of electric energy conversion devices in industrial areas, electricity purchase costs in industrial areas, and income from electricity sales in industrial areas.

[0186] According to the actual consumption of various costs in the industrial zone, the industrial cost is calculated using the following formula:

[0187]

[0188] Among them, C GB,gy is the natural gas consumption cost of gas turbines in industrial areas, p GB is the unit consumption cost of natural gas, G GB,gy (t) is the natural gas consumption at time t, and T1, T2, T3, and T4 are the operating cycles under different operating modes respectively;

[0189]

[0190] Among them, C WT,gy is the operation and maintenance cost of wind turbines in industrial areas, p WT is the unit power operation and maintenance cost of the wind turbine, P WT,gy (t) is the power of wind turbines in the industrial area at time t;

[0191]

[0192] Among them, C PV,gy is the total photovoltaic operation and maintenance cost of the industrial area, p PV is the photovoltaic unit power operation and maintenance cost, P PV,gy (t) is the photovoltaic power of the industrial area at time t;

[0193]

[0194] Among them, C ES,gy is the energy storage cost in the industrial area, p ES is the unit loss cost of energy storage, P ES,gy(t) is the energy storage charging and discharging power;

[0195]

[0196] Among them, C L,gy is the compensation cost of the movable load in the industrial area, p L,gy,i is the compensation price per unit load power, P sum,gy,i is the sum of the powers of the ith movable load, the 0-1 variable y i,τ is the state of the i-th translatable load, y i,τ =1 means that the i-th translatable load starts from the τ period, is the original starting time period of the i-th shiftable load in the industrial zone, and the acceptable shifting time period is t Di is the time period during which the ith translatable load lasts, τ is the time when the flexible load starts, and represents the time period τ;

[0197]

[0198] in, is the operation and maintenance cost of the power conversion device in the industrial zone, that is, the operation and maintenance cost of the power conversion device in each mode / season in the industrial zone, p ER,gy is the unit power operation and maintenance cost of the electric refrigerator, is the output power of the electric refrigerator, p EB,gy is the unit power operation and maintenance cost of the electric boiler, is the power of electric boiler, p WP is the operation and maintenance cost of the water source heat pump, is the water source heat pump power, T m , m = 1, 2, 3, 4 are the operating cycles under different operating modes;

[0199]

[0200] in, The cost of purchasing electricity for industrial areas, The electric power purchased by the industrial zone from outside the zone or the power grid, The real-time electricity price for each region when purchasing electricity from external regions or the power grid;

[0201]

[0202] in, For the income from electricity sales in industrial areas, The electric power sold by the industrial zone to the outside of the zone or the power grid, The real-time electricity price for each region to sell electricity to external regions or the grid;

[0203] Based on the industrial cost, the total operating cost of the industrial zone is calculated as follows:

[0204]

[0205] Among them, C gy is the total operating cost of the industrial zone.

[0206] In this embodiment, the total operating cost of the residential area is specifically:

[0207] Residential costs include natural gas consumption costs of gas turbines in residential areas, operation and maintenance costs of wind turbines in residential areas, operation and maintenance costs of total photovoltaic power generation in residential areas, energy storage costs in residential areas, compensation costs for load reduction in residential areas, compensation costs for electric vehicles in residential areas, operation and maintenance costs of electric energy conversion devices in residential areas, electricity purchase costs in residential areas, and income from electricity sales in residential areas.

[0208] Based on the actual consumption of various costs in the residential area, the resident cost is calculated using the following formula:

[0209]

[0210] Among them, C GB,jm is the natural gas consumption cost of gas turbines in residential areas, p GB is the unit consumption cost of natural gas, G GB,jm (t) is the natural gas consumption at time t;

[0211]

[0212] Among them, C WT,jm is the operation and maintenance cost of wind turbines in residential areas, p WT is the unit power operation and maintenance cost of the wind turbine, P WT,jm (t) is the power of the wind turbine at time t;

[0213]

[0214] Among them, C PV,jm is the total photovoltaic operation and maintenance cost of the residential area, p PV is the photovoltaic unit power operation and maintenance cost, P PV,jm (t) is the photovoltaic power at time t;

[0215]

[0216] Among them, C ES,jm is the energy storage cost in residential areas, p ES is the unit loss cost of energy storage, P ES,jm (t) is the energy storage charging and discharging power;

[0217]

[0218] Among them, C L,jm is the compensation cost for load reduction in residential areas, p L,jm,i is the compensation price per unit load power that can be reduced, P L,jm,i is the power of the i-th load that can be reduced, C fixL,jm,i,t is the fixed compensation for load reduction during period t, and the 0-1 variable u i,τ is the i-th state where load can be reduced, u i,t =1 means that the i-th curtailable load is curtailed in period t;

[0219]

[0220] Among them, C EV,jm Compensation costs for electric vehicles in residential areas, p EV is the unit power compensation cost of electric vehicles when discharging, N EV,jm is the number of electric vehicles in residential areas, P EV,jm,i (t) is the discharge power of electric vehicle i at time t.

[0221]

[0222] in, is the operation and maintenance cost of the electric energy conversion device in the residential area, that is, the operation and maintenance cost of the electric energy conversion device in each mode / season in the residential area, p ER,jm is the unit power operation and maintenance cost of the electric refrigerator, is the output power of the electric refrigerator, p EB,jm is the unit power operation and maintenance cost of the electric boiler, Power of electric boiler, p wp,jm is the unit power operation and maintenance cost of the water source heat pump, Power of water source heat pump, p AP,jm is the unit power operation and maintenance cost of the air heat pump, is the power of the air heat pump;

[0223]

[0224] in, The cost of purchasing electricity for residential areas, The electricity power purchased by the residential area from outside the area or the power grid, The real-time electricity price for each region when purchasing electricity from external regions or the power grid;

[0225]

[0226] in, The income from electricity sales in residential areas, It is the electric power sold by the residential area to the outside or the power grid. The real-time electricity price for each region to sell electricity to external regions or the grid;

[0227] Based on the resident cost, the total operating cost of the residential area is calculated as follows:

[0228]

[0229] Among them, C jm is the total operating cost of the residential area.

[0230] In this embodiment, the total operating cost of the commercial area is specifically:

[0231] Commercial costs include natural gas consumption costs of gas turbines in commercial areas, operation and maintenance costs of wind turbines in commercial areas, operation and maintenance costs of total photovoltaic power generation in commercial areas, energy storage costs in commercial areas, compensation costs for load reduction in commercial areas, compensation costs for electric vehicles in commercial areas, operation and maintenance costs of electric energy conversion devices in commercial areas, electricity purchase costs in commercial areas, and income from electricity sales in commercial areas.

[0232] According to the actual consumption of various costs in the commercial area, the commercial cost is calculated using the following formula:

[0233]

[0234] Among them, C GB,sy is the natural gas consumption cost of gas turbines in commercial areas, p GB is the unit consumption cost of natural gas, G GB,sy (t) is the natural gas consumption at time t;

[0235]

[0236] Among them, C WT,sy is the operation and maintenance cost of wind turbines in commercial areas, p WT is the unit power operation and maintenance cost of the wind turbine, P WT,sy (t) is the power of the wind turbine at time t;

[0237]

[0238] Among them, C PV,sy is the total photovoltaic operation and maintenance cost of the commercial area, p PV is the photovoltaic unit power operation and maintenance cost, P PV,sy (t) is the photovoltaic power at time t;

[0239]

[0240] Among them, C ES,sy is the energy storage cost in commercial areas, p ES is the unit loss cost of energy storage, P ES,sy (t) is the energy storage charging and discharging power.

[0241]

[0242] Among them, C L,sy is the compensation cost for the transferable load in the commercial area, P L,sy,i is the power of the i-th transferable load, 0-1 variable v i,τ is the state of the i-th transferable load, v i,t =1 means the i-th transferable load is running in period t.

[0243]

[0244] Among them, C EV,sy Compensation costs for electric vehicles in commercial areas, p EV is the unit power compensation cost of electric vehicles when discharging, N EV,sy is the number of electric vehicles in the commercial area, P EV,sy,i (t) is the discharge power of electric vehicle i at time t.

[0245]

[0246] in, is the operation and maintenance cost of the electric energy conversion device in the commercial area, that is, the operation and maintenance cost of the electric energy conversion device in each mode / season in the commercial area, p ER,sy is the unit power operation and maintenance cost of the electric refrigerator, is the output power of the electric refrigerator, p EB,sy is the unit power operation and maintenance cost of the electric boiler, is the power of electric boiler, p GP,sy is the unit power operation and maintenance cost of the ground source heat pump, Power of ground source heat pump, p AP,sy is the unit power operation and maintenance cost of the air heat pump, is the power of the air heat pump;

[0247]

[0248] in, The cost of purchasing electricity for commercial areas, The electricity purchased by the commercial area from outside the area or the power grid, The real-time electricity price for each region when purchasing electricity from external regions or the power grid;

[0249]

[0250] in, For the income from electricity sales in commercial areas, The electric power sold by the commercial area to the outside of the area or the power grid, The real-time electricity price for each region to sell electricity to external regions or the grid;

[0251] Based on the commercial costs, the total operating costs of the commercial area are calculated as follows:

[0252]

[0253] Among them, C jm is the total operating cost of the commercial area.

[0254] Optionally, the operation constraints include energy constraints of the industrial zone agent center, energy constraints of the residential zone agent center, energy constraints of the commercial zone agent center, and flexible load constraints;

[0255] In this embodiment, the constraints serve as constraints for five models (inter-regional new energy sharing interaction model, regional electric energy, thermal energy and cooling energy conversion model, adjustment model of flexible loads in different regions, and electric energy sharing model and operation cost model in different seasons), so that the objective function seeks the optimal solution based on the system operation constraints under the constructed model.

[0256] Optionally, the energy constraint of the industrial zone agent center is established based on the operation mode and the power of each device in the industrial zone. The formula is as follows:

[0257]

[0258] Among them, P GB,gy (t) is the power generation of gas turbine in industrial area, P WT,gy (t) is the wind power generation power in the industrial area, P PV,gy (t) is the total photovoltaic power generation power of the industrial area, Pd ES,gy (t) is the energy storage discharge power in the industrial area, P is the power purchased by the industrial area from the external power grid or region. L,gy (t) is the flexible load power of the industrial area, P BL,gy,i (t), P PV,gy,i (t), N gy are the base load of the i-th user in the industrial zone, the photovoltaic output power of the i-th user in the industrial zone, and the number of users in the industrial zone, respectively. ES,gy (t) is the energy storage charging power in the industrial area, The power sold by the industrial area to the external power grid or region, The total power consumed by the equipment that converts electrical energy into cooling and heating energy in the industrial area;

[0259]

[0260] in, is the heat load of the industrial zone under the m operation mode, where m operation mode represents the operation mode / season, is the thermal power generated by the water source heat pump in the industrial zone m operation mode, is the thermal power generated by the electric boiler in the industrial zone m operating mode;

[0261]

[0262] in, is the cooling load in the industrial zone under the m operation mode, is the cooling power generated by the electric refrigerator in the industrial zone under the m operation mode;

[0263] The energy constraint of the residential agent center is established based on the operation mode and the power of each device in the residential area. The formula is as follows:

[0264]

[0265] Among them, P GB,jm (t) is the power generation of gas turbine in residential area, P WT,jm (t) is the wind power generation power in residential areas, P PV,jm (t) is the total photovoltaic power generation power in the residential area, Pd EV,jm (t) is the discharge power of electric vehicles in residential areas, Pd ES,jm (t) is the energy storage discharge power in residential areas, P is the power purchased by the residential area from the external power grid or region. L,jm (t) is the flexible load power in residential areas, P BL,jm,i (t), P PV,jm,i (t), N jm are the base load of the i-th user in the residential area, the photovoltaic output power of the i-th user in the residential area, and the number of users in the residential area, respectively. EV,jm (t) is the charging power of electric vehicles in residential areas, Pc ES,jm (t) is the energy storage charging power in residential areas, The power sold by residential areas to external power grids or regions, The total power consumed by equipment that converts electrical energy into cooling and heating energy in residential areas.

[0266]

[0267] in, is the heat load of the residential area under the m operation mode, where m operation mode represents the operation mode / season. is the thermal power generated by the air source heat pump in the residential area m operation mode, is the thermal power generated by the water source heat pump in the residential area m operation mode, is the thermal power generated by the electric boiler in the residential area m operating mode;

[0268]

[0269] in, is the cooling load of the residential area under the m operation mode, is the cooling power generated by the electric refrigerator in the residential area under the m operation mode, is the cooling power generated by the air source heat pump in the residential area under the m operation mode, is the cooling power generated by the water source heat pump in the residential area m operation mode;

[0270] The energy constraint of the commercial district agency center is established based on the operating mode and the power of each device in the commercial district. The formula is as follows:

[0271]

[0272] Among them, P L,sy (t) is the flexible load power in the commercial area, P GB,sy (t) is the power generation capacity of gas turbine in commercial area, P WT,sy (t) is the wind power generation power in the commercial area, P PV,sy (t) is the total photovoltaic power generation power in the commercial area, Pd EV,sy (t) is the discharge power of electric vehicles in commercial areas, Pd ES,sy (t) is the energy storage discharge power in the commercial area, P is the power purchased by the commercial area from the external power grid or region. L,sy (t) is the flexible load power in the commercial area, P BL,sy,i (t), P PV,sy,i (t), N sy are the base load of the i-th user in the commercial area, the photovoltaic output power of the i-th user in the commercial area, and the number of users in the commercial area, Pc EV,sy (t) is the charging power of electric vehicles in the commercial area, Pc ES,sy (t) is the energy storage charging power in the commercial area, The power sold by the commercial area to the external grid or region, The total power consumed by the equipment that converts electrical energy into cooling and heating energy in the commercial area;

[0273]

[0274] in, is the heat load of the commercial area under the m operation mode, where m operation mode represents the operation mode / season, is the thermal power of the commercial area air source heat pump, is the thermal power of the ground source heat pump in the commercial area, is the thermal power of the electric boiler;

[0275]

[0276] in, is the cooling load in the commercial area under the m operation mode, is the cooling power of the electric refrigerator in the commercial area, is the cooling power of the air source heat pump in the commercial area, The cooling power of the ground source heat pump in the commercial area;

[0277] Optionally, the flexible load constraints include industrial area flexible load constraints, residential area flexible load constraints, commercial area flexible load constraints, gas turbine constraints, industrial area power conversion equipment constraints, residential area power conversion equipment constraints, commercial area power conversion equipment constraints, energy storage constraints and electric vehicle constraints.

[0278] In this embodiment, the flexible load in the industrial zone is a translatable load, and its constraints are:

[0279]

[0280] in, is the set of shiftable load starting periods, if Indicates that the load has not shifted. is the original starting time period of the i-th shiftable load in the industrial zone, and the acceptable shifting time period is t Di The variable τ represents the time period τ, which is used to determine the time when the flexible load starts. The output power P of the flexible load in the industrial area is L,gy,i (τ) is a power distribution vector, P L,gy,i (t) represents the power of the flexible load in the industrial area at time t, (·) t represents the tth element of the vector (·), P L,gy,i,s1 ,…, Respectively represent the first to tth time intervals of the translation load starting time period τ Di Power of the time period, P sum,gy,i is the sum of the electric power of the ith movable load, used to calculate the compensation cost, and the 0-1 variable y i,τ represents the state of the i-th translatable load, y i,τ =1 means that the i-th translatable load starts from the τ period.

[0281] The flexible load constraints in residential areas are as follows. The flexible load in residential areas is an interruptible load, and its constraints are as follows:

[0282]

[0283] in, is the load power that can be reduced before the interruption, 0-1 variable u i,τrepresents the state of the i-th translatable load, u i,t =1 indicates that the i-th curtailable load is curtailed in period t.

[0284] Interruptible load fixed charge constraints in residential areas:

[0285] C fixL,jm,i,t ≥C fixL,jm,i,t (u i,t -u i,t-1 )

[0286] C fixL,jm,i,t ≥0

[0287] Among them, C fixL,jm,i,t is the fixed compensation for load reduction during period t.

[0288] Minimum duration constraint:

[0289]

[0290] Maximum duration constraint:

[0291]

[0292]

[0293] Frequency constraints:

[0294]

[0295] in, are the minimum and maximum duration of load interruption, The maximum number of interruptions allowed in one interruption cycle. F is the duration of interruption of the interruptible load before time period 0, i The time required to continue executing the cut to meet the minimum cut time constraint.

[0296] The flexible load constraints in the commercial area are as follows. The flexible load in the commercial area is a transferable load, and its constraints are as follows:

[0297] v i,t P min,L,sy,i ≤P L,sy,i (t)≤v i,t P max,L,sy,i

[0298]

[0299] Among them, v i,t is a 0-1 variable, indicating the operating state of the transferable load in period t, v i,t =1 means the transferable load is running in period t, PL,sy,i (t) is the load power after the transferable load is controlled. min,L,sy,i 、P max,L,sy,i are the upper and lower limits of the power of the transferable load, is the minimum continuous running time, is the load transfer interval, Δt is the unit control load duration, W i trans The total amount of electricity that can be transferred is the amount that needs to be consumed within the specified time.

[0300] The gas turbine constraints are:

[0301] P GB,area (t) = η GB G GB,area (t),area=gy,jm,sy

[0302] 0≤P GB,area (t)≤P GB,area,max

[0303] |P GB,area (t)-P GB,area (t-1)|≤ΔP GB,area (t)

[0304] Among them, η GB is the power generation efficiency of the gas turbine, P GB,max is the upper limit of gas turbine power supply, area is the variable representing different areas, G GB,area (t) is the natural gas consumption of the gas turbine, ΔP GB,area is the gas turbine ramp rate.

[0305] The power conversion equipment constraints include industrial area power conversion equipment constraints, residential area power conversion equipment constraints and commercial area power conversion equipment constraints.

[0306] The constraints on power conversion equipment in industrial areas are as follows:

[0307] Water source heat pump constraints:

[0308]

[0309] in, is the thermal power generated by the water source heat pump in the industrial area, Kh WP,gy is the heating efficiency coefficient of the water source heat pump in the industrial area, P WP,gy (t) is the power consumption of the water source heat pump in the industrial area, is the maximum thermal power of the water source heat pump.

[0310] Electric boiler constraints:

[0311]

[0312] in, is the thermal power of the electric boiler in the industrial area, η EB is the heating efficiency coefficient of the electric boiler, P EB,gy (t) is the electric power consumed by the electric boiler in the industrial area, Q EB,max is the maximum thermal power of the electric boiler.

[0313] Electric Refrigerator Constraints:

[0314]

[0315] in, is the cooling power of the industrial electric refrigerator in mode m, η ER is the refrigeration efficiency coefficient of the electric refrigerator, P ER,gy (t) is the electric power consumed by the electric refrigerator, Q ER,max The maximum cooling efficiency of the electric refrigerator

[0316]

[0317] in, It is the total power consumed by the equipment that converts electrical energy into cooling and heating energy in the industrial area under the m-mode.

[0318] Constraints on power conversion equipment in residential areas are as follows:

[0319] Water source heat pump constraints:

[0320]

[0321] in, is the thermal efficiency of the residential water source heat pump in the m mode, Kh WP is the heating efficiency coefficient of the water source heat pump, is the cooling efficiency of the residential water source heat pump in the m mode, Kc WP is the cooling efficiency coefficient of the water source heat pump, P WP,jm (t) is the electric power consumed by the water source heat pump in the residential area. Qh WP,max 、Qc WP,max They are the maximum heating power and maximum cooling power of the water source heat pump respectively.

[0322] Air source heat pump constraints:

[0323]

[0324] in, is the thermal efficiency of the residential air source heat pump in the m mode, Kh AP is the heating efficiency coefficient of the air source heat pump, Kc is the cooling efficiency of the residential air source heat pump in the m mode, AP is the air source heat pump cooling efficiency coefficient, P AP,jm (t) is the electric power consumed by the air source heat pump in the residential area. Qh AP,max 、Qc AP,max They are the maximum heating power and maximum cooling power of the air source heat pump respectively.

[0325] Electric Refrigerator Constraints:

[0326]

[0327] in, is the cooling power of the residential electric refrigerator in mode m, η ER is the refrigeration efficiency coefficient of the electric refrigerator, P ER,jm (t) is the power consumed by the electric refrigerator in the residential area, Q ER,max The maximum cooling efficiency of the electric refrigerator

[0328] Electric boiler constraints:

[0329]

[0330] in, is the thermal power of electric boilers in residential areas, η EB is the heating efficiency coefficient of the electric boiler, P EB,jm (t) is the electric power consumed by electric boilers in residential areas, Q EB,max is the maximum thermal power of the electric boiler.

[0331]

[0332] in, It is the total power consumed by the equipment that converts electric energy into cooling and heating energy in residential areas under m-mode.

[0333] The constraints on power conversion equipment in commercial areas are as follows:

[0334] Ground source heat pump constraints:

[0335]

[0336] in, is the thermal efficiency of the ground source heat pump in the commercial area under the m mode, Kh GP is the heating efficiency coefficient of the ground source heat pump, Kc is the cooling efficiency of the ground source heat pump in the commercial area in the m mode, GP is the cooling efficiency coefficient of the ground source heat pump, P GP,sy (t) is the electric power consumed by the ground source heat pump in the commercial area. Qh GP,max 、Qc GP,maxThey are the maximum heating power and maximum cooling power of the ground source heat pump respectively.

[0337] Air source heat pump constraints:

[0338]

[0339] in, is the thermal efficiency of the commercial area air source heat pump in the m mode, Kh AP is the heating efficiency coefficient of the air source heat pump, Kc is the cooling efficiency of the commercial area air source heat pump in m mode AP is the air source heat pump cooling efficiency coefficient, P AP,sy (t) is the electric power consumed by the air source heat pump in the commercial area. Qh AP,max 、Qc AP,max They are the maximum heating power and maximum cooling power of the air source heat pump respectively.

[0340] Electric Refrigerator Constraints:

[0341]

[0342] in, (t) is the cooling power of the commercial electric refrigerator in mode m, η ER is the refrigeration efficiency coefficient of the electric refrigerator, P ER,sy (t) is the power consumed by the electric refrigerator in the commercial area, Q ER,max It is the maximum cooling efficiency of the electric refrigerator.

[0343] Electric boiler constraints:

[0344]

[0345] in, is the thermal power of the electric boiler in the commercial area, η EB is the heating efficiency coefficient of the electric boiler, P EB,sy (t) is the power consumed by the electric boiler in the commercial area, Q EB,max is the maximum thermal power of the electric boiler.

[0346]

[0347] in It is the total power consumed by the equipment that converts electrical energy into cooling and heating energy in the commercial area under m-mode.

[0348] The energy storage constraints are:

[0349]

[0350] SOC ES,area (t) = SOC ES,area(t-1)+(ηc ES PC ES,area (t)-Pd ES,area (t) / ηd ES )SOC ESC,area

[0351] Among them, SOC ES,area (t), E ES , SOC ESC,area 、Pc ES,area (t), Pd ES,area (t),ηc ES ,ηd ES,area They are the energy storage charge state, the remaining energy in the energy storage battery, the energy storage battery capacity, the energy storage battery charging power, the energy storage battery discharging power, the charging efficiency coefficient, and the discharge efficiency coefficient. The variable area is used to represent different areas.

[0352] SOC ES,area (0) = SOC ES,area (T)

[0353] S min ≤SOC ES (t)≤S max

[0354] 0≤Pc ES,area (t)≤γcPc max

[0355] 0≤Pd ES,area (t)≤γdPd max

[0356] γc(t)+γd(t)≤1

[0357] Among them, S min 、S max Indicates the upper and lower limits of the state of charge of the energy storage device. γc and γd are 0-1 variables used to constrain the charging and discharging states of the energy storage. At the same time, the energy storage can only be in the charging state or the discharging state.

[0358] The electric vehicle constraints are:

[0359] Monte Carlo simulation is used to generate the state of charge of electric vehicles at the time of grid connection and the charge and discharge power constraints of electric vehicles:

[0360] 0≤Pc EV,area,i (t)≤Pc EV,max

[0361] 0≤Pd EV,area,i (t)≤Pd EV,max

[0362] Among them, area = jm,sy, which means the restricted area is residential area and commercial area, Pc EV,area,i (t) is the charging power of the i-th electric vehicle in the area, Pd EV,area,i (t) is the discharge power of the i-th electric vehicle in the area, Pc EV,max 、Pd EV,max are the maximum charging power and maximum discharging power of the electric vehicle during period t respectively.

[0363] Electric vehicle charging power constraints:

[0364] SOC EV,min,i ≤SOC EV,area,i (t)≤SOC EV,max,i

[0365]

[0366] 0≤Pc EV,area,i (t)≤xc area,i,t PC EV,max

[0367] 0≤Pd EV,area,i (t)≤xd area,i,t Pd EV,max

[0368] xd area,i,t +xc area,i,t ≤1

[0369]

[0370] Among them, SOC EV,area,i (t) is the state of charge of the i-th electric vehicle in the area, SOC EV,min,i , SOC EV,max,i are the upper and lower limits of the battery state of charge of the i-th electric vehicle, ηc EV ,ηd EV , SOC EVL,area,i They are the electric vehicle charging efficiency coefficient, electric vehicle discharging efficiency coefficient and electric vehicle battery capacity, xd area,i,t 、xc area,i,t is a 0-1 variable that represents the charging and discharging status of the electric vehicle, t EVA , t EVL , SOC exp,area,i are the start time and end time of the electric vehicle grid connection and the user's expected state of charge when off-grid, and the value is 0.9.

[0371] Step 102: Solve the power sharing problem based on the operation mode, operation cost model and operation constraints to obtain the new energy operation sharing information of the user group area. Share the new energy operation sharing information among the user group areas through the regional agent center of the user group area, and control the operation of the energy supply equipment in the user group area and the energy supply to users in the area.

[0372] Optionally, the power sharing solution is performed according to the operation mode, operation cost model and operation constraints to obtain the new energy operation sharing information of the user group area. Specifically, the operation mode and operation cost model are searched for the optimal solution with the constraints as constraints through the particle swarm algorithm to obtain the new energy operation sharing information of the user group area.

[0373] In this embodiment, a particle swarm algorithm is used to solve the "wind-solar-storage" new energy sharing and optimized interactive operation of the user group, and the optimal solution of the model is sought based on the operation constraints. The new energy operation sharing information of the user group area is obtained, that is, the operation status of wind power, photovoltaics, gas turbines, flexible loads, energy storage, electric vehicles, cold and heat energy cooling devices, etc. in each area, and the electricity sharing situation between the areas is obtained, and the minimum total operation cost and the operation cost of each area under this operation method are obtained.

[0374] In implementing the embodiment of the present invention, operating constraints are used as constraints of the model, so that the objective function seeks the optimal solution of the model based on the operating constraints of the entire system under the constructed model. That is, under the objective function of minimum cost, the sharing of new energy between each region is optimized, the operating output of gas turbines, wind power, photovoltaics, cold and heat energy supply equipment, etc. is optimized, and the new energy in each region is efficiently utilized.

[0375] It should be noted that the proposed "wind-solar-storage" energy sharing and optimized interactive operation among user groups, combined with an energy-sharing architecture across multiple regional user groups, employs seasonal and pattern-specific methods for converting electricity into heat and cooling energy, and incorporates real-time electricity pricing that takes into account cooling and heating energy demand. This architecture establishes an interconnected power system encompassing three regions: industrial, commercial, and residential. Each region has a dedicated agency center, and the three regions share energy as a whole. Users within each region have their own photovoltaic and flexible loads. They can transfer surplus photovoltaic power to their regional agency center for use. Users in each region can also adjust their flexible load usage to receive financial incentives. The regional agency center is responsible for operating the wind turbines, gas turbines, and gas boilers within the region, supplying electricity, cooling, and heating to users within the region. The agency center also shares surplus photovoltaic and wind power within the region based on inter-regional electricity prices, grid electricity prices, and demand information for electricity, cooling, and heating loads within and outside the region. Excess power can be shared within the region, shared across regions, and sold to the grid. The inter-regional electricity sales and purchase prices are real-time electricity prices determined based on each region's energy demand. Depending on the season, the system's operating modes are categorized as cooling season mode, transition season mode, heating season mode, and transition season mode. Different cooling and heating load demands in different seasons necessitate different system energy utilization priorities.

[0376] In implementing the embodiment of the present invention, under the constructed new energy sharing interconnection structure of the user group area, the regional agent center of the user group area is used to construct an operation mode, an operation cost model, and an operation constraint condition; based on the operation mode, the operation cost model, and the operation constraint condition, the electric energy sharing solution is performed to obtain the new energy operation sharing information of the user group area; the regional agent center of the user group area shares the new energy operation sharing information between the user group areas, and controls the operation of the energy supply equipment in the user group area and the energy supply to the users in the area. The regional agent center of the user group area enables users to share electric energy, share the excess electric energy generated by new energy with nearby users, and allow new energy to be consumed nearby, thereby improving the flexibility of the system's electricity use and the overall economic efficiency, while also reducing the requirements for energy storage capacity configuration.

[0377] The above specific embodiments further illustrate the objectives, technical solutions, and beneficial effects of the present invention. It should be understood that the above are merely specific embodiments of the present invention and are not intended to limit the scope of protection of the present invention. In particular, it should be noted that any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention for those skilled in the art.

Claims

1. A method for operating new energy sharing among user groups, characterized in that: include: Under the constructed new energy sharing interconnection structure of the user group area, the operation mode, operation cost model and operation constraint conditions are constructed through the regional agent center of the user group area; performing an electric energy sharing solution based on the operation mode, the operation cost model, and the operation constraint conditions to obtain new energy operation sharing information for the user group area; sharing the new energy operation sharing information among the user group areas through a regional agent center in the user group area; and controlling the operation of energy supply equipment within the user group area and the energy supply to users within the area; The specific operation mode is: An operation mode of the user group area is constructed according to different seasons. In the operation mode, new energy in the user group area is converted to generate electric energy, and the surplus electricity in the area is sold to other areas based on the real-time electricity price according to the regional new energy sharing interaction model. Different seasons are divided into different cold and heat energy supply modes through different seasonal power sharing models. The electric load, heat load and cold load in the area are provided through the electric energy, heat energy and cold energy conversion model in the area. When electric energy is used in the area, the flexible load in the area is adjusted to meet the electric energy supply and demand through the adjustment model of the flexible load in different areas. The operation modes include cooling season mode, heating-cooling transition mode, heating season mode and heating-cooling transition mode; The inter-regional new energy sharing interactive model interacts with electricity and information through the regional agent center of the user group area, aggregates resources within the user group area, shares electricity generated by new energy sources inside and outside the area, determines real-time electricity prices based on cooling and heating energy demand, and purchases electricity from external power grids or regions or sells surplus electricity at the real-time electricity prices, wherein the user group area includes industrial areas, commercial areas, and residential areas; The electric energy, heat energy and cold energy conversion model in the region converts electric energy into cold energy or heat energy by configuring an electric energy conversion device in the regional agent center of the user group area; The regulation model of the flexible loads in different areas models the flexible loads differently according to different areas, and the flexible loads in the area are regulated by the regional agent center of the user group area. The flexible load operation in the industrial area is kept continuous for a certain period of time, the residential area has a reducible load, and the commercial area has a transferable load.

2. The method for operating a new energy sharing system among user groups according to claim 1, wherein: The new energy sharing interconnection structure of the user group area includes an inter-regional new energy sharing and interaction structure and an intra-regional electric energy conversion structure; The inter-regional new energy sharing and interaction structure is specifically as follows: the user group area is shared by the regional agency center with the surplus electricity in the area; the user group area is equipped with power supply, energy storage equipment and electric energy conversion device; flexible loads matching the area are set in the user group area; water source heat pumps are set in the industrial area to convert industrial wastewater into cold energy and heat energy; air heat pumps are set in the residential area for summer cooling; and ground source heat pumps are set in the commercial area to take on the task of excessive heating; wherein the electric energy conversion device includes an electric boiler, an electric refrigerator, the water source heat pump, the air heat pump and the ground source heat pump; The electric energy conversion structure in the region is specifically as follows: the regional agency center in the user group area converts electric energy into cold and hot energy to supply cold and hot loads in the region through the electric energy conversion device; the electric boiler is used to convert electric energy into heat energy for supply in the heating season; and the electric refrigerator is used to convert electric energy into cold energy for supply in the cooling season; The seasonal electricity sharing model adjusts the focus of cooling and heating according to the seasons, uses electricity to supplement cooling and heating energy, and sets the energy supply status of the electric energy conversion device in different areas according to the seasons.

3. The method for operating a new energy sharing system among user groups according to claim 1, wherein: The real-time electricity price is determined according to the demand for cooling and heating energy, specifically: Calculate the regional equivalent cooling energy demand by taking a weighted average of the efficiency coefficients of the electric energy conversion devices in the user group area; wherein the regional equivalent cooling energy demand includes the equivalent cooling load of the residential area, the equivalent heating load of the residential area, the equivalent cooling load of the commercial area, the equivalent heating load of the commercial area, the equivalent cooling load of the industrial area, and the equivalent heating load of the industrial area; The total demand is calculated by summing the equivalent cooling energy demand of the region and the electric energy load of all regions; Based on the total demand and the total power supply of all regions, the electricity price supply-demand ratio is calculated as follows: Wherein, γ is the supply-demand ratio of the electricity price, P provision is the total power supply for all the areas mentioned, P need is the total demand; The real-time electricity price is calculated based on the electricity price supply-demand ratio, the grid electricity purchase price, the grid electricity sales price and the intermediate electricity price. The formula is as follows: in, The real-time electricity price for each region to purchase electricity from external regions or power grids, The real-time electricity price for each region to sell electricity to external regions or the power grid, is the price of electricity purchased from the grid during period t, is the price of electricity sold to the grid during period t, is the middle electricity price during period t, is the electricity price supply-demand ratio during period t, for The reciprocal of is the marker amount.

4. The method for operating a new energy sharing system among user groups according to claim 1, wherein: The operating cost model is specifically: The regional agency center of the user group area takes the minimum total operating cost as the objective function to construct the operating cost model; The total operating cost is the sum of the total operating cost of the industrial area, the total operating cost of the residential area and the total operating cost of the commercial area.

5. The method for operating a new energy sharing system among user groups according to claim 4, characterized in that: The total operating costs of the industrial zone are specifically: Industrial costs include natural gas consumption costs of gas turbines in industrial areas, operation and maintenance costs of wind turbines in industrial areas, total photovoltaic operation and maintenance costs in industrial areas, energy storage costs in industrial areas, compensation costs for shiftable loads in industrial areas, operation and maintenance costs of electric energy conversion devices in industrial areas, electricity purchase costs in industrial areas, and income from electricity sales in industrial areas. According to the actual consumption of various costs in the industrial zone, the industrial cost is calculated as follows: Among them, C GB,gy is the natural gas consumption cost of gas turbines in the industrial zone, p GB is the unit consumption cost of natural gas, G GB,gy (t) is the natural gas consumption at time t, and T1, T2, T3, and T4 are the operating cycles under different operating modes respectively; Among them, C WT,gy is the operation and maintenance cost of wind turbines in the industrial zone, p WT is the unit power operation and maintenance cost of the wind turbine, P WT,gy (t) is the power of wind turbines in the industrial area at time t; Among them, C PV,gy is the total photovoltaic operation and maintenance cost of the industrial zone, p PV is the photovoltaic unit power operation and maintenance cost, P PV,gy (t) is the photovoltaic power of the industrial area at time t; Among them, C ES,gy is the energy storage cost of the industrial zone, p ES is the unit loss cost of energy storage, P ES,gy (t) is the energy storage charging and discharging power; Among them, C L,gy is the compensation cost of the movable load in the industrial zone, p L,gy,i is the compensation price per unit load power, P sum,gy,i is the sum of the powers of the ith translatable load, y i,τ is the state of the i-th translatable load, y i,τ =1 means that the i-th translatable load starts from the τ period, is the original starting time period of the i-th shiftable load in the industrial zone, and the acceptable shifting time period is t Di is the time period of the ith translatable load, and τ is the time to determine the start of the flexible load; in, is the operation and maintenance cost of the electric energy conversion device in the industrial zone, p ER,gy is the unit power operation and maintenance cost of the electric refrigerator, is the output power of the electric refrigerator, p EB,gy is the unit power operation and maintenance cost of the electric boiler, is the power of electric boiler, p WP is the operation and maintenance cost of the water source heat pump, is the water source heat pump power, T m , m=1, 2, 3, 4 are the operating cycles under the different operating modes; in, The cost of purchasing electricity for industrial areas, The electric power purchased by the industrial zone from outside the zone or the power grid, The real-time electricity price for each region when purchasing electricity from external regions or the power grid; in, For the income from electricity sales in industrial areas, The electric power sold by the industrial zone to the outside of the zone or the power grid, The real-time electricity price for each region to sell electricity to external regions or the grid; Based on the industrial costs, the total operating costs of the industrial zone are calculated using the following formula: Among them, C gy is the total operating cost of the industrial zone.

6. The method for operating a new energy sharing system among user groups according to claim 4, characterized in that: The total operating cost of the residential area is specifically: Residential costs include natural gas consumption costs of gas turbines in residential areas, operation and maintenance costs of wind turbines in residential areas, operation and maintenance costs of total photovoltaic power generation in residential areas, energy storage costs in residential areas, compensation costs for load reduction in residential areas, compensation costs for electric vehicles in residential areas, operation and maintenance costs of electric energy conversion devices in residential areas, electricity purchase costs in residential areas, and income from electricity sales in residential areas. According to the actual consumption of various costs in the residential area, the resident cost is calculated as follows: Among them, C GB,jm is the natural gas consumption cost of the gas turbine in the residential area, p GB is the unit consumption cost of natural gas, G GB,jm (t) is the natural gas consumption at time t; Among them, C WT,jm is the operation and maintenance cost of wind turbines in the residential area, p WT is the unit power operation and maintenance cost of the wind turbine, P WT,jm (t) is the power of the wind turbine at time t; Among them, C PV,jm is the total photovoltaic operation and maintenance cost of the residential area, p PV is the photovoltaic unit power operation and maintenance cost, P PV,jm (t) is the photovoltaic power at time t; Among them, C ES,jm is the energy storage cost of the residential area, p ES is the unit loss cost of energy storage, P ES,jm (t) is the energy storage charging and discharging power; Among them, C L,jm is the compensation cost for load reduction in the residential area, p L,jm,i is the compensation price per unit load power that can be reduced, P L,jm,i is the power of the i-th load that can be reduced, C fixL,jm,i,t is the fixed compensation for load reduction during period t, u i,τ is the i-th state where load can be reduced, u i,t =1 means that the i-th curtailable load is curtailed in period t; Among them, C EV,jm Compensation cost for electric vehicles in the residential area, p EV is the unit power compensation cost of electric vehicles when discharging, N EV,jm is the number of electric vehicles in residential areas, P EV,jm,i (t) is the discharge power of electric vehicle i at time t; in, is the operation and maintenance cost of the residential area electric energy conversion device, p ER,jm is the unit power operation and maintenance cost of the electric refrigerator, is the output power of the electric refrigerator, p EB,jm is the unit power operation and maintenance cost of the electric boiler, Power of electric boiler, p wp,jm is the unit power operation and maintenance cost of the water source heat pump, Power of water source heat pump, p AP,jm is the unit power operation and maintenance cost of the air heat pump, is the power of the air heat pump; in, is the electricity purchase cost for the residential area, The electricity power purchased by the residential area from outside the area or the power grid, The real-time electricity price for each region when purchasing electricity from external regions or the power grid; in, is the income from electricity sales in the residential area, It is the electric power sold by the residential area to the outside or the power grid. The real-time electricity price for each region to sell electricity to external regions or the grid; Based on the resident costs, the total operating costs of the residential area are calculated using the following formula: Among them, C jm is the total operating cost of the residential area.

7. The method for operating a new energy sharing system among user groups according to claim 4, wherein: The total operating costs of the commercial area are specifically: Commercial costs include natural gas consumption costs of gas turbines in commercial areas, operation and maintenance costs of wind turbines in commercial areas, operation and maintenance costs of total photovoltaic power generation in commercial areas, energy storage costs in commercial areas, compensation costs for load reduction in commercial areas, compensation costs for electric vehicles in commercial areas, operation and maintenance costs of electric energy conversion devices in commercial areas, electricity purchase costs in commercial areas, and income from electricity sales in commercial areas. According to the actual consumption of various costs in the commercial area, the commercial cost is calculated as follows: Among them, C GB,sy is the natural gas consumption cost of the gas turbine in the commercial area, p GB is the unit consumption cost of natural gas, G GB,sy (t) is the natural gas consumption at time t; Among them, C WT,sy is the operation and maintenance cost of the wind turbine in the commercial area, p WT is the unit power operation and maintenance cost of the wind turbine, P WT,sy (t) is the power of the wind turbine at time t; Among them, C PV,sy is the total photovoltaic operation and maintenance cost of the commercial area, p PV is the photovoltaic unit power operation and maintenance cost, P PV,sy (t) is the photovoltaic power at time t; Among them, C ES,sy is the energy storage cost of the commercial area, p ES is the unit loss cost of energy storage, P ES,sy (t) is the energy storage charging and discharging power; Among them, C L,sy is the compensation cost for the transferable load in the commercial area, P L,sy,i is the power of the i-th transferable load, v i,τ is the state of the i-th transferable load, v i,t =1 means the i-th transferable load is running in period t; Among them, C EV,sy Compensation cost for electric vehicles in the commercial area, p EV is the unit power compensation cost of electric vehicles when discharging, N EV,sy is the number of electric vehicles in the commercial area, P EV,sy,i (t) is the discharge power of electric vehicle i at time t; in, is the operating and maintenance cost of the commercial area power conversion device, p ER,sy is the unit power operation and maintenance cost of the electric refrigerator, is the output power of the electric refrigerator, p EB,sy is the unit power operation and maintenance cost of the electric boiler, is the power of electric boiler, p GP,sy is the unit power operation and maintenance cost of the ground source heat pump, Power of ground source heat pump, p AP,sy is the unit power operation and maintenance cost of the air heat pump, is the power of the air heat pump; in, is the electricity purchase cost for the commercial area, The electricity purchased by the commercial area from outside the area or the power grid, The real-time electricity price for each region when purchasing electricity from external regions or the power grid; in, is the income from electricity sales in the commercial area, The electric power sold by the commercial area to the outside of the area or the power grid, The real-time electricity price for each region to sell electricity to external regions or the grid; Based on the commercial costs, the total operating costs of the commercial area are calculated using the following formula: Among them, C jm is the total operating cost of the commercial area.

8. The method for operating a user group new energy sharing system according to any one of claims 1 to 7, characterized in that: The operation constraints include energy constraints of industrial zone agent centers, energy constraints of residential zone agent centers, energy constraints of commercial zone agent centers and flexible load constraints; The energy constraint condition of the industrial zone agent center is established based on the operation mode and the power of each device in the industrial zone, and the formula is as follows: Among them, P GB,gy (t) is the power generation capacity of gas turbine in industrial area, P WT,gy (t) is the wind power generation power in the industrial area, P PV,gy (t) is the total photovoltaic power generation power of the industrial area, Pd ES,gy (t) is the energy storage discharge power in the industrial area, P is the power purchased by the industrial area from the external power grid or region. L,gy (t) is the flexible load power of the industrial area, P BL,gy,i (t), P PV,gy,i (t), N gy are the base load of the i-th user in the industrial zone, the photovoltaic output power of the i-th user in the industrial zone, and the number of users in the industrial zone, respectively. ES,gy (t) is the energy storage charging power in the industrial area, The power sold by the industrial area to the external power grid or region, The total power consumed by the equipment that converts electrical energy into cooling and heating energy in the industrial area; in, is the heat load of the industrial zone under the m operation mode, is the thermal power generated by the water source heat pump in the industrial zone m operation mode, is the thermal power generated by the electric boiler in the industrial zone m operating mode; in, is the cooling load in the industrial zone under the m operation mode, is the cooling power generated by the electric refrigerator in the industrial zone under the m operation mode; The energy constraint condition of the residential area agent center is established according to the operation mode and the power of each device in the residential area, and the formula is as follows: Among them, P GB,jm (t) is the power generation of gas turbine in residential area, P WT,jm (t) is the wind power generation power in residential areas, P PV,jm (t) is the total photovoltaic power generation power in the residential area, Pd EV,jm (t) is the discharge power of electric vehicles in residential areas, Pd ES,jm (t) is the energy storage discharge power in residential areas, P is the power purchased by the residential area from the external power grid or region. L,jm (t) is the flexible load power in residential areas, P BL,jm,i (t), P PV,jm,i (t), N jm are the base load of the i-th user in the residential area, the photovoltaic output power of the i-th user in the residential area, and the number of users in the residential area, respectively. EV,jm (t) is the charging power of electric vehicles in residential areas, Pc ES,jm (t) is the energy storage charging power in residential areas, The power sold by residential areas to external power grids or regions, The total power consumed by the equipment that converts electrical energy into cooling and heating energy in residential areas; in, is the heat load of the residential area under operating mode m, is the thermal power generated by the air source heat pump in the residential area m operation mode, is the thermal power generated by the water source heat pump in the residential area m operation mode, is the thermal power generated by the electric boiler in the residential area m operating mode; in, is the cooling load of the residential area under the m operation mode, is the cooling power generated by the electric refrigerator in the residential area under the m operation mode, is the cooling power generated by the air source heat pump in the residential area under the m operation mode, is the cooling power generated by the water source heat pump in the residential area m operation mode; The energy constraint condition of the commercial district agent center is established according to the operation mode and the power of each device in the commercial district, and the formula is as follows: Among them, P L,sy (t) is the flexible load power in the commercial area, P GB,sy (t) is the power generation capacity of gas turbine in commercial area, P WT,sy (t) is the wind power generation power in the commercial area, P PV,sy (t) is the total photovoltaic power generation power in the commercial area, Pd EV,sy (t) is the discharge power of electric vehicles in commercial areas, Pd ES,sy (t) is the energy storage discharge power in the commercial area, P is the power purchased by the commercial area from the external power grid or region. L,sy (t) is the flexible load power in the commercial area, P BL,sy,i (t), P PV,sy,i (t), N sy are the base load of the i-th user in the commercial area, the photovoltaic output power of the i-th user in the commercial area, and the number of users in the commercial area, Pc EV,sy (t) is the charging power of electric vehicles in the commercial area, Pc ES,sy (t) is the energy storage charging power in the commercial area, The power sold by the commercial area to the external grid or region, The total power consumed by the equipment that converts electrical energy into cooling and heating energy in the commercial area; in, is the heat load of the commercial area under the m operation mode, is the thermal power of the commercial area air source heat pump, is the thermal power of the ground source heat pump in the commercial area, is the thermal power of the electric boiler; in, is the cooling load in the commercial area under the m operation mode, is the cooling power of the electric refrigerator in the commercial area, is the cooling power of the air source heat pump in the commercial area, The cooling power of the ground source heat pump in the commercial area; The flexible load constraints include flexible load constraints in industrial areas, flexible load constraints in residential areas, flexible load constraints in commercial areas, gas turbine constraints, power conversion equipment constraints in industrial areas, power conversion equipment constraints in residential areas, power conversion equipment constraints in commercial areas, energy storage constraints and electric vehicle constraints.

9. The method for operating a user group new energy sharing system as claimed in claim 1, wherein: The electric energy sharing solution is performed according to the operation mode, the operation cost model and the operation constraint conditions to obtain the new energy operation sharing information of the user group area, specifically: The particle swarm algorithm is used to seek an optimal solution for the operation mode and the operation cost model with the constraint conditions as constraints, so as to obtain the new energy operation sharing information of the user group area.

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