A power energy management method and a smart city energy management system

Abstract

The application relates to a power energy management method and a smart city energy management system. The method comprises the following steps: calculating a primary power gap curve according to a predicted energy output curve and a predicted energy consumption curve, wherein the primary power gap curve comprises a duration and a gap peak group; creating a virtual power plant within a coverage range according to the duration; determining an electric energy output of the virtual power plant in the duration; correcting the predicted energy output curve according to the electric energy output and calculating a secondary power gap curve again; repeating the correction of the secondary power gap curve until the secondary power gap curve disappears or the duration and / or the gap peak group of the secondary power gap curve are within an allowable range. The power energy management method and the smart city energy management system disclosed by the application realize active power gap management in a real-time analysis and prediction mode and in combination with a virtual power plant, and realize rapid response to the power gap.

Description

Technical Field

[0001] This application relates to the field of data processing technology, and in particular to a power energy management method and a smart city energy management system. Background Technology

[0002] Smart city energy management is a comprehensive solution for the intelligent monitoring, analysis, optimization, and collaborative control of urban energy systems. Its core is to break down traditional barriers in energy systems through digital means, achieving precise matching, efficient utilization, and sustainable development of energy supply and demand, thus supporting the low-carbon and efficient operation of smart cities.

[0003] In terms of management, it can be divided into two aspects: demand-side management and supply-side management. Demand-side management aims to achieve the goals of power supply and demand balance, energy efficiency improvement, cost reduction and environmental improvement by guiding, optimizing and regulating users' electricity consumption behavior. Supply-side management improves energy stability through multi-source supply, redundant reserves and emergency response, while also promoting low-carbon transformation and dynamic response by optimizing the allocation of supply resources and improving supply flexibility.

[0004] In demand-side management, if only thermal power is used, adjustments need to be made by starting standby units and adjusting loads. These adjustments are costly and have problems such as time lag and additional equipment losses. With the diversification of energy forms and the addition of distributed energy, the ability to regulate power gaps has been enhanced, enabling a shift from passive supply guarantee to proactive optimization. However, multiple energy forms and distributed energy have fragmentation issues, and how to manage them in a coordinated manner requires further research. Summary of the Invention

[0005] This application provides a power energy management method and a smart city energy management system, which uses real-time analysis and prediction combined with virtual power plants to proactively manage power shortages and achieve rapid response to power shortages.

[0006] The above-mentioned objective of this application is achieved through the following technical solution:

[0007] In a first aspect, this application provides a power energy management method, including:

[0008] The primary power gap curve is calculated based on the predicted energy output curve and the predicted energy consumption curve. The primary power gap curve includes the duration and the peak gap group.

[0009] Create virtual power plants within the coverage area based on duration;

[0010] Determine the electrical output of the virtual power plant over a given period of time;

[0011] The secondary power shortage curve is obtained by correcting the predicted energy output curve based on the power output and recalculating it.

[0012] Repeatedly revise the secondary power shortage curve until the secondary power shortage curve disappears or the duration and / or peak value group of the secondary power shortage curve are within the allowable range.

[0013] In one possible implementation of the first aspect, creating a virtual power plant within the coverage area based on duration includes:

[0014] The first power output unit is determined within the coverage area based on the duration.

[0015] Based on the power output and peak deficit of the first power output unit, the power output units are screened to obtain the second power output unit, which then participates in the creation of a virtual power plant.

[0016] The process of screening power output units also includes classifying the first power output unit into stable and unstable categories.

[0017] Based on the peak value group of the gap, the region corresponding to the primary power gap curve is divided into a stable power gap region and an unstable power gap region.

[0018] The first power output unit of the stable class is used to fill the stable gap, and the first power output unit of the unstable class is used to fill the unstable power gap region.

[0019] In one possible implementation of the first aspect, screening the power output unit based on the power output of the first power output unit and the gap peak group includes:

[0020] The gap peak group is divided into stable and unstable regions, with the stable region located below the unstable region.

[0021] The first power output unit of the stable class is used to fill the stable region, and the first power output unit of the unstable class is used to fill the unstable region.

[0022] The synthetic output curve of the unstable first power output unit that fills the unstable region is obtained;

[0023] Verify and adjust the composite output curve to match the primary power shortage curve.

[0024] In one possible implementation of the first aspect, obtaining the synthetic output curve of the unstable first power output unit that fills the unstable region includes:

[0025] The primary power shortage curve is divided into multiple sub-power shortage curve segments, and these sub-power shortage curve segments are monotonic.

[0026] The unstable power gap region is divided into segments based on the time periods corresponding to the gap peak group and the sub-power gap curve segments.

[0027] Based on the monotonicity of the sub-power gap curve segments, unstable power gap regions are screened, and unstable power gap regions with consistent monotonicity are retained.

[0028] The remaining unstable power shortage areas were statistically analyzed and ranked accordingly.

[0029] Select at least the first one in the arrangement order as the first power output unit of the unstable class to fill the unstable region;

[0030] The synthesized output curve of the unstable first power output unit that fills the unstable region.

[0031] One possible implementation of the first aspect also includes:

[0032] Create a fluctuating region based on the primary power shortage curve;

[0033] Determine the duration of the synthesized output curve within the fluctuation region;

[0034] The first power output unit of the unstable class is selected to fill the unstable region based on the length of time it exists, so that the number of the first power output units of the unstable class filling the unstable region is minimized.

[0035] In one possible implementation of the first aspect, after obtaining the synthesized output curve, it further includes:

[0036] Identify the abnormal regions on the synthesized output curve, select a coordination region within the coverage area, and determine the capacity of the coordination region;

[0037] The capacity is checked based on the abnormal area, ensuring that the capacity is greater than or equal to the abnormal area.

[0038] The coordinated area is a residential power consumption area, and the power input of the coordinated area comes from the same power supply end.

[0039] The number of coordination areas must be at least one.

[0040] In one possible implementation of the first aspect, when the duration of the secondary power shortage curve and / or the peak set of the shortage are within permissible limits, it further includes:

[0041] The area within the coverage area is divided into multiple independent areas, including residential power consumption areas and industrial power consumption areas.

[0042] Adjustment strategies for independent areas are selected based on the duration. These strategies include adjusting the power supply voltage of civilian power-consuming areas, adjusting the power supply voltage of industrial power-consuming areas, and disconnecting power to industrial power-consuming areas.

[0043] Secondly, this application provides an electric power management device, comprising:

[0044] The first calculation unit is used to calculate the primary power gap curve based on the predicted energy output curve and the predicted energy consumption curve. The primary power gap curve includes the duration and the gap peak group.

[0045] Create a unit to create a virtual power plant within the coverage area based on the duration;

[0046] The second calculation unit is used to determine the electrical energy output of the virtual power plant over a given period of time.

[0047] The third calculation unit is used to correct the predicted energy output curve based on the power output and recalculate the secondary power gap curve.

[0048] The correction processing unit is used to repeatedly correct the secondary power gap curve until the secondary power gap curve disappears or the duration and / or peak value group of the secondary power gap curve are within the allowable range.

[0049] Thirdly, this application provides a smart city energy management system, the system comprising:

[0050] One or more memories for storing instructions; and

[0051] One or more processors are configured to call and execute the instructions from the memory to perform the methods described in the first aspect and any possible implementation thereof.

[0052] Fourthly, this application provides a computer-readable storage medium, the computer-readable storage medium comprising:

[0053] The program, when run by a processor, is executed as described in the first aspect and any possible implementation thereof.

[0054] Fifthly, this application provides a computer program product, including program instructions that, when run by a computing device, execute the method described in the first aspect and any possible implementation thereof.

[0055] Sixthly, this application provides a chip system including a processor for implementing the functions involved in the foregoing aspects, such as generating, receiving, transmitting, or processing the data and / or information involved in the foregoing methods.

[0056] This chip system can consist of chips or include chips and other discrete components.

[0057] In one possible design, the chip system also includes a memory for storing necessary program instructions and data. The processor and the memory can be decoupled and located on different devices, connected via wired or wireless means, or the processor and the memory can be coupled to the same device. Attached Figure Description

[0058] Figure 1 This is a flowchart illustrating the steps of a power energy management method provided in this application.

[0059] Figure 2 This is a schematic diagram illustrating the principle of obtaining a primary power shortage curve provided in this application.

[0060] Figure 3 This is a schematic diagram provided in this application, showing a division into stable power shortage regions and unstable power shortage regions.

[0061] Figure 4 This is a schematic diagram of dividing a primary power shortage curve, as provided in this application.

[0062] Figure 5 This is a schematic diagram of creating a fluctuating region based on a primary power shortage curve, as provided in this application.

[0063] Figure 6 This is a schematic diagram of a stepped output provided in this application. Detailed Implementation

[0064] The technical solutions in this application will be further described in detail below with reference to the accompanying drawings.

[0065] This application discloses a method for power energy management. Please refer to [link / reference]. Figure 1 In some instances, the power energy management method disclosed in this application includes the following steps:

[0066] S101, The primary power gap curve is calculated based on the predicted energy output curve and the predicted energy consumption curve. The primary power gap curve includes the duration and the gap peak group.

[0067] S102, Create a virtual power plant within the coverage area based on the duration;

[0068] S103, Determine the electrical energy output of the virtual power plant over the duration;

[0069] S104, the predicted energy output curve is corrected based on the power output and the secondary power gap curve is calculated again;

[0070] S105, Repeatedly correct the secondary power shortage curve until the secondary power shortage curve disappears or the duration and / or peak value group of the secondary power shortage curve are within the allowable range.

[0071] First, it should be noted that the core idea of ​​the power energy management method disclosed in this application to solve the power shortage is to schedule in advance by predicting the power shortage. However, it should be noted that the application scenario of this application is a further optimization of the current prediction and scheduling methods, rather than a replacement.

[0072] It should be understood that the main ways to address power shortages using thermal power generation are as follows:

[0073] Flexibility modification: Deeply modify thermal power units to reduce minimum stable output (e.g., reduce the minimum output of pure condensing units from 50% of rated load to 30%-40%) and increase the rate of change of load (e.g., from 1.5% / min to 2%-3% / min) to adapt to load fluctuations;

[0074] Load priority classification: Level 1 guarantee, Level 2 control, Level 3 restriction;

[0075] Dynamic execution mechanism: Different levels of response are initiated based on the real-time gap size (e.g., blue alert limits 3% load, red alert limits 10% load), and the self-provided transformers or interruptible load devices of industrial users are remotely controlled through the power load management system;

[0076] Real-time monitoring and rapid response: Automatically cut off some loads according to priority through low-frequency load shedding devices to prevent system crashes.

[0077] These methods all have a certain lag, and other stable power supply methods (such as hydropower and nuclear power) also have this problem. However, stable power supply is the foundation for the stable operation of the power grid. In this application, the above methods are required to build the foundation. Specifically, a basic power supply plan is obtained based on the current power supply and current power consumption. The specific implementation of this plan is day-ahead load forecasting and week-ahead load forecasting. Typically, load data for the next 1 to 10 days is predicted. The purpose is to provide a reference for hydropower dispatching, unit start-up and shutdown, and hydro-thermal coordination, which is a basic task required for the daily operation of the power grid.

[0078] The drawback of this approach is that it cannot cope with sudden power demand. The technical solution in this application is based on the basic power supply plan to meet sudden power demand. The specific process is to obtain the predicted energy output curve and the predicted energy consumption curve based on the existing data. The predicted energy output curve refers to the power supply capacity, and the predicted energy consumption curve refers to the consumption capacity. These two curves are obtained based on the current power supply capacity and consumption capacity.

[0079] It should be noted that electricity consumption can be divided into two main categories: residential and commercial. Residential electricity consumption is characterized by time-of-day fluctuations, seasonal fluctuations, and random factors (sudden weather, holidays, or special events). From the perspective of power supply parameters, small voltage fluctuations (such as within ±5%) are allowed, which may not be noticeable to users; and small frequency deviations are allowed (within ±0.2Hz).

[0080] The core demand for power supply in enterprises is to ensure the continuity of production. Power outages or fluctuations may directly lead to economic losses, equipment damage, or even safety accidents. Therefore, the requirements for power supply reliability are generally higher than those for residential electricity. Furthermore, enterprises are highly specialized and have great differences in their sensitivity to power quality. Their overall tolerance for power fluctuations is relatively low. In particular, industries such as precision manufacturing, data centers, and continuous production have almost "zero tolerance" for fluctuations. Traditional industries and commercial service industries have a slightly higher tolerance, but it is still far lower than that for residential electricity.

[0081] The prediction time unit for power supply capacity and consumption capacity here is generally minutes. In step S101, the primary power shortage curve is first calculated based on the predicted energy output curve and the predicted energy consumption curve. The primary power shortage curve includes the duration and the peak value group of the shortage, such as... Figure 2 As shown.

[0082] according to Figure 2 As can be seen, the primary power deficit curve is the difference between the predicted energy consumption curve and the predicted energy output curve, which lies below the predicted energy consumption curve. The portion of the predicted energy output curve that lies above the predicted energy consumption curve can be handled through methods such as temporary storage, increasing the supply voltage, or discarding the excess energy.

[0083] Next, in step S102, a virtual power plant is created within the coverage area based on the duration. Here, the coverage area refers to the application scope of the technical solution in this application. Within the coverage area, the technical solution in this application can complete the required scheduling behavior.

[0084] The virtual power plant here refers to a management model that integrates scattered distributed energy resources into a unified and controllable "virtual power system" and participates in power market dispatch like a traditional power plant. Specifically, it includes photovoltaics, residential energy storage, commercial energy storage, and interruptible loads.

[0085] In some possible implementations, interruptible loads can be implemented by issuing power outage plans through management platforms and enterprise mini-programs, with enterprises able to choose to agree or disagree, and the results obtained through statistical methods. It should also be noted that the power consumption of interruptible loads needs to be a stable load (power) to facilitate subsequent calculations.

[0086] In step S103, the power output of the virtual power plant during the duration is determined, which is the power supply capacity of the virtual power plant during the duration. Then, in step S104, the predicted energy output curve is corrected based on the power output and the secondary power gap curve is calculated again.

[0087] The obtained secondary power gap curve is processed in step S105. Specifically, the secondary power gap curve is repeatedly corrected until the secondary power gap curve disappears or the duration and / or peak value group of the secondary power gap curve are within the allowable range.

[0088] In step S105, when the peak value of the shortfall is within the allowable range, this peak value of the shortfall is preferentially transferred to the residential electricity sector to ensure the stability of the electricity supply for the industrial electricity sector.

[0089] The process of repeatedly correcting the secondary power gap curve includes two methods: selecting from virtual power plants and expanding virtual power plants. Selecting from virtual power plants refers to choosing among multiple inputs of a virtual power plant in order to use the minimum amount of input for dispatching.

[0090] Expanding virtual power plants refers to increasing the number of inputs to virtual power plants. As mentioned earlier, energy storage can directly participate in dispatch, but interruptible loads need to wait for feedback, which means that the dispatch time for interruptible loads is longer than that for energy storage.

[0091] Therefore, when creating a virtual power plant, energy storage is used first. When energy storage is insufficient, interruptible loads are used to expand the virtual power plant.

[0092] In some examples, the specific methods for creating virtual power plants within the coverage area based on duration are as follows:

[0093] S201, determine the first power output unit within the coverage area based on the duration;

[0094] S202, the power output units are screened based on the power output and peak gap of the first power output unit to obtain the second power output unit, and the second power output unit participates in the creation of the virtual power plant;

[0095] The process of screening power output units also includes classifying the first power output unit into stable and unstable categories.

[0096] Based on the peak value group of the gap, the region corresponding to the primary power gap curve is divided into a stable power gap region and an unstable power gap region.

[0097] The first power output unit of the stable class is used to fill the stable gap, and the first power output unit of the unstable class is used to fill the unstable power gap region.

[0098] In steps S201 and S202, a first power output unit is first determined within the coverage area based on the duration. Here, the first power output unit refers to the power output that can participate in the construction of the virtual power plant within the duration. Then, the power output units are screened based on the power output and gap peak group of the first power output unit, and a second power output unit is obtained.

[0099] After obtaining the second power output unit, use the second power output unit to participate in the creation of a virtual power plant.

[0100] The purpose of screening power output units is to determine their quantity and output characteristics. The purpose of determining the quantity of output units is to minimize the number of second power output units, because the more second power output units there are, the more difficult the scheduling becomes. The purpose of determining the output characteristics is to ensure that the output characteristics of the second power output units are as consistent as possible with the changes in the primary power gap curve or the corrected secondary power gap curve.

[0101] For example, if the primary power shortage curve or the corrected secondary power shortage curve shows an upward trend over a certain period of time, then the secondary power output unit should also show an upward trend over a certain period of time. In this way, the secondary power output unit can be used directly, thereby reducing or avoiding the need to adjust the output of the secondary power output unit.

[0102] In the above method, the first power output unit also needs to be divided into stable and unstable types. The output of the stable type first power output unit is in a stable state, while the output of the unstable type first power output unit has certain fluctuations.

[0103] Simultaneously, based on the peak value group of the power shortage, the region corresponding to the primary power shortage curve needs to be divided into a stable power shortage region and an unstable power shortage region, such as... Figure 3 As shown, the area with the profile line represents the area with a stable power shortage, while the area without the profile line represents the area with an unstable power shortage.

[0104] The first power output unit of the stable class is used to fill the stable gap, and the first power output unit of the unstable class is used to fill the unstable power gap region. This filling process is a selection process, and the selected first power output unit is the second power output unit.

[0105] according to Figure 3 As can be seen, using the stable first power output unit to fill the stable gap can directly determine the height of the profile area, while the remaining part is filled by the unstable first power output unit.

[0106] The specific method for screening power output units based on the power output and peak value of the first power output unit is as follows:

[0107] S301, the gap peak group is divided into regions to obtain stable and unstable regions, with the stable region located below the unstable region;

[0108] S302, use a stable first power output unit to fill the stable region, and use an unstable first power output unit to fill the unstable region;

[0109] S303, obtain the synthetic output curve of the unstable first power output unit that fills the unstable region;

[0110] S304, check and adjust the composite output curve to make it match the primary power shortage curve.

[0111] In steps S301 to S304, the gap peak group is first divided into regions to obtain stable and unstable regions. The stable region is located below the unstable region. The gap peak group corresponds to a curve, which includes a rectangular region (stable region) and an irregular region (unstable region). Then, the stable region is filled with a first power output unit of the stable type, and the unstable region is filled with a first power output unit of the unstable type.

[0112] After the filling is completed, the composite output curve of the unstable first power output unit that fills the unstable region will be obtained. Finally, the composite output curve is checked and adjusted so that it matches the primary power gap curve.

[0113] The filling process is a selection process, and various situations may occur. At this time, it is necessary to check and adjust the synthesized output curve. The adjustment method is to replace the unstable first power output unit.

[0114] The following explanation is also required:

[0115] When there is no unstable first power output unit, a stable first power output unit is used for modulation output. In this case, a power conversion system is required. The power conversion system performs dynamic power output by controlling the conduction time (duty cycle) of the IGBT through pulse width modulation (PWM) technology.

[0116] For example, when the target power is increased, the duty cycle of the PWM pulse is increased, which raises the effective value of the output AC voltage, thereby increasing the output power (P=U² / R, the power increases when the voltage increases); conversely, the duty cycle is decreased to reduce the power.

[0117] The height of the unstable region should be as small as possible, which means using the first power output unit of the stable type as much as possible to increase the height of the stable region. Meanwhile, the first power output unit of the stable type... Figure 3 The height in the middle should be below the primary power shortage curve.

[0118] The specific method for obtaining the synthetic output curve pair of the unstable first power output unit that fills the unstable region is as follows:

[0119] S401, the primary power shortage curve is divided into multiple sub-power shortage curve segments, and the sub-power shortage curve segments have monotonicity;

[0120] S402, the unstable power gap region is divided according to the time period corresponding to the gap peak group and the sub-power gap curve segment, and the unstable power gap region segment is obtained.

[0121] S403, based on the monotonicity of the sub-power gap curve segment, the unstable power gap region segment is screened, and the unstable power gap region segment with consistent monotonicity is retained;

[0122] S404, statistical analysis is performed on the retained unstable power gap areas to obtain the ranking order;

[0123] S405, Select at least the first one in the arrangement order as the first power output unit of the unstable class to fill the unstable region;

[0124] S406, the synthesized output curve of the unstable first power output unit that fills the unstable region.

[0125] In step S401, the primary power shortage curve will first be divided. Specifically, the primary power shortage curve will be divided into multiple sub-power shortage curve segments, such as... Figure 4As shown, the primary power gap curve is considered to be composed of multiple line segments. Multiple sub-power gap curve segments are obtained by breaking these line segments. Here, the sub-power gap curve segments are required to have monotonicity, which means that they only include one of the following: rising, falling, and unchanged.

[0126] In steps S402 and S4032, the unstable power gap region is divided into unstable power gap region segments according to the time periods corresponding to the gap peak group and the sub-power gap curve segments. At the same time, the unstable power gap region segments are screened according to the monotonicity of the sub-power gap curve segments, and unstable power gap region segments with consistent monotonicity are retained. This step can make the synthesized output curve match the primary power gap curve as closely as possible.

[0127] In step S404, the remaining unstable power gap regions are statistically analyzed to obtain a sorting order. Then, in step S405, at least the first one in the sorting order is selected as the first unstable power output unit to fill the unstable region.

[0128] Finally, in step S406, the synthesized output curve of the unstable first power output unit that fills the unstable region is obtained.

[0129] The following content has been added to the above method:

[0130] Create a fluctuating region based on the primary power shortage curve;

[0131] Determine the duration of the synthesized output curve within the fluctuation region;

[0132] The first power output unit of the unstable class is selected to fill the unstable region based on the length of time it exists, so that the number of the first power output units of the unstable class filling the unstable region is minimized.

[0133] This section will create fluctuation regions based on the primary power shortage curve, such as... Figure 5 As shown, the fluctuation area is located between the two dotted lines. The fluctuation area includes an upper limit and a lower limit. The upper and lower limits here need to be determined according to the actual situation of the region, such as ±2%, or an actual value. Of course, this is only an example and not a limitation. This processing method is also used in other locations in this application where values ​​need to be determined.

[0134] Next, the duration of the synthesized output curve in the fluctuating region is determined. Finally, based on the duration of the duration, the first unstable power output unit is selected to fill the unstable region, with the requirement that the number of the first unstable power output units filling the unstable region be minimized.

[0135] It should be noted that in steps S401 to S406, multiple schemes will be obtained. At this time, it is necessary to select these schemes based on the duration of the existence of the synthesized output curve in the fluctuating region. The selection criterion is to minimize the number of unstable first power output units that fill the unstable region.

[0136] It should be noted that at this point, part of the synthesized output curve may be outside the fluctuation region. The solution is to convert the stable output (straight line) of one of the stable second power output units into a stepped (straight line) output, such as... Figure 6 As shown, by using stepped output, the part of the synthesized output curve located outside the fluctuation region can be moved into the fluctuation region.

[0137] In some examples, after obtaining the synthesized output curve, the following content was added:

[0138] S501, Identify the abnormal regions on the synthesized output curve, select a coordination region within the coverage area, and determine the capacity of the coordination region;

[0139] S502, check the capacity based on the abnormal area, and make the capacity greater than or equal to the abnormal area;

[0140] The coordinated area is a residential power consumption area, and the power input of the coordinated area comes from the same power supply end.

[0141] The number of coordination areas must be at least one.

[0142] In steps S501 and S502, abnormal regions on the synthesized output curve are identified, and a coordination region is selected within the coverage area and the capacity of the coordination region is determined. Here, the abnormal region refers to the region of the synthesized output curve outside the fluctuation region.

[0143] After obtaining the coordination area, the capacity needs to be checked against the abnormal area to ensure that the capacity is greater than or equal to that of the abnormal area. Here, the coordination area is required to be a residential power consumption area, and the power input of the coordination area comes from the same power supply.

[0144] The number of coordination areas can be one or more.

[0145] The function of the coordination region is to repair abnormal areas on the synthesized output curve. When the output power of the abnormal area on the synthesized output curve is greater than the required power, the excess power will be transferred to the coordination region for consumption. Conversely, some power needs to be transferred from the coordination region.

[0146] In some cases, when the duration of the secondary power shortage curve and / or the peak set of the shortage are within the allowable range, the following additional information is provided:

[0147] The area within the coverage area is divided into multiple independent areas, including residential power consumption areas and industrial power consumption areas.

[0148] Adjustment strategies for independent areas are selected based on the duration. These strategies include adjusting the power supply voltage of civilian power-consuming areas, adjusting the power supply voltage of industrial power-consuming areas, and disconnecting power to industrial power-consuming areas.

[0149] Specifically, the area within the coverage area will first be divided into multiple independent areas, including residential power consumption areas and industrial power consumption areas. Then, an adjustment strategy for the independent areas will be selected based on the duration, which means that coordination will be carried out within the coverage area. At this time, the adjustments are all minor, so internal coordination can be carried out directly without the need to expand the virtual power plant.

[0150] The adjustment strategies include: adjusting the power supply voltage in residential power-consuming areas, adjusting the power supply voltage in industrial power-consuming areas, and disconnecting power to industrial power-consuming areas.

[0151] This application also provides an electric power management device, comprising:

[0152] The first calculation unit is used to calculate the primary power gap curve based on the predicted energy output curve and the predicted energy consumption curve. The primary power gap curve includes the duration and the gap peak group.

[0153] Create a unit to create a virtual power plant within the coverage area based on the duration;

[0154] The second calculation unit is used to determine the electrical energy output of the virtual power plant over a given period of time.

[0155] The third calculation unit is used to correct the predicted energy output curve based on the power output and recalculate the secondary power gap curve.

[0156] The correction processing unit is used to repeatedly correct the secondary power gap curve until the secondary power gap curve disappears or the duration and / or peak value group of the secondary power gap curve are within the allowable range.

[0157] Furthermore, creating virtual power plants within the coverage area based on duration includes:

[0158] The first power output unit is determined within the coverage area based on the duration.

[0159] Based on the power output and peak deficit of the first power output unit, the power output units are screened to obtain the second power output unit, which then participates in the creation of a virtual power plant.

[0160] The process of screening power output units also includes classifying the first power output unit into stable and unstable categories.

[0161] Based on the peak value group of the gap, the region corresponding to the primary power gap curve is divided into a stable power gap region and an unstable power gap region.

[0162] The first power output unit of the stable class is used to fill the stable gap, and the first power output unit of the unstable class is used to fill the unstable power gap region.

[0163] Furthermore, the power output unit is screened based on the power output and peak deficit of the first power output unit, including:

[0164] The gap peak group is divided into stable and unstable regions, with the stable region located below the unstable region.

[0165] The first power output unit of the stable class is used to fill the stable region, and the first power output unit of the unstable class is used to fill the unstable region.

[0166] The synthetic output curve of the unstable first power output unit that fills the unstable region is obtained;

[0167] Verify and adjust the composite output curve to match the primary power shortage curve.

[0168] Furthermore, the synthesized output curve of the unstable first power output unit that fills the unstable region includes:

[0169] The primary power shortage curve is divided into multiple sub-power shortage curve segments, and these sub-power shortage curve segments are monotonic.

[0170] The unstable power gap region is divided into segments based on the time periods corresponding to the gap peak group and the sub-power gap curve segments.

[0171] Based on the monotonicity of the sub-power gap curve segments, unstable power gap regions are screened, and unstable power gap regions with consistent monotonicity are retained.

[0172] The remaining unstable power shortage areas were statistically analyzed and ranked accordingly.

[0173] Select at least the first one in the arrangement order as the first power output unit of the unstable class to fill the unstable region;

[0174] The synthesized output curve of the unstable first power output unit that fills the unstable region.

[0175] Furthermore, it also includes:

[0176] Create a fluctuating region based on the primary power shortage curve;

[0177] Determine the duration of the synthesized output curve within the fluctuation region;

[0178] The first power output unit of the unstable class is selected to fill the unstable region based on the length of time it exists, so that the number of the first power output units of the unstable class filling the unstable region is minimized.

[0179] Furthermore, after obtaining the synthesized output curve, it also includes:

[0180] Identify the abnormal regions on the synthesized output curve, select a coordination region within the coverage area, and determine the capacity of the coordination region;

[0181] The capacity is checked based on the abnormal area, ensuring that the capacity is greater than or equal to the abnormal area.

[0182] The coordinated area is a residential power consumption area, and the power input of the coordinated area comes from the same power supply end.

[0183] The number of coordination areas must be at least one.

[0184] Furthermore, when the duration of the secondary power shortage curve and / or the peak value group of the shortage are within the allowable range, it also includes:

[0185] The area within the coverage area is divided into multiple independent areas, including residential power consumption areas and industrial power consumption areas.

[0186] Adjustment strategies for independent areas are selected based on the duration. These strategies include adjusting the power supply voltage of civilian power-consuming areas, adjusting the power supply voltage of industrial power-consuming areas, and disconnecting power to industrial power-consuming areas.

[0187] In one example, the unit in any of the above devices may be one or more integrated circuits configured to implement the above methods, such as one or more application-specific integrated circuits (ASICs), or one or more digital signal processors (DSPs), or one or more field-programmable gate arrays (FPGAs), or a combination of at least two of these integrated circuit forms.

[0188] For example, when the units in the device can be implemented through a processing element scheduler, the processing element can be a general-purpose processor, such as a central processing unit (CPU) or other processor capable of calling programs. Alternatively, these units can be integrated together to form a system-on-a-chip (SOC).

[0189] In this application, various objects such as messages / information / devices / network elements / systems / apparatus / actions / operations / processes / concepts may be named. It is understood that these specific names do not constitute a limitation on the relevant objects. The names may be changed depending on the scenario, context, or usage habits. The understanding of the technical meaning of the technical terms in this application should be mainly determined from their functions and technical effects embodied / performed in the technical solution.

[0190] Those skilled in the art will understand that, for the sake of convenience and brevity, the specific working processes of the systems, devices, and units described above can be referred to the corresponding processes in the foregoing method embodiments, and will not be repeated here.

[0191] In the several embodiments provided in this application, it should be understood that the disclosed systems, apparatuses, and methods can be implemented in other ways. For example, the apparatus embodiments described above are merely illustrative; for instance, the division of units is only a logical functional division, and in actual implementation, there may be other division methods. For example, multiple units or components may be combined or integrated into another system, or some features may be ignored or not executed. Furthermore, the coupling or direct coupling or communication connection shown or discussed may be through some interfaces; the indirect coupling or communication connection between apparatuses or units may be electrical, mechanical, or other forms.

[0192] The units described as separate components may or may not be physically separate. The components shown as units may or may not be physical units; that is, they may be located in one place or distributed across multiple network units. Some or all of the units can be selected to achieve the purpose of this embodiment according to actual needs.

[0193] Those skilled in the art will recognize that the units and algorithm steps of the various examples described in conjunction with the embodiments disclosed herein can be implemented in electronic hardware, or a combination of computer software and electronic hardware. Whether these functions are implemented in hardware or software depends on the specific application and design constraints of the technical solution. Those skilled in the art can use different methods to implement the described functions for each specific application, but such implementation should not be considered beyond the scope of this application.

[0194] It should also be understood that in the various embodiments of this application, the terms "first," "second," etc., are merely to indicate that multiple objects are different. For example, a first time window and a second time window are only to indicate different time windows. They should not have any effect on the time windows themselves, and the aforementioned terms "first," "second," etc., should not impose any limitations on the embodiments of this application.

[0195] It should also be understood that, in the various embodiments of this application, unless otherwise specified or in case of logical conflict, the terms and / or descriptions between different embodiments are consistent and can be referenced by each other, and the technical features in different embodiments can be combined to form new embodiments according to their inherent logical relationships.

[0196] If the aforementioned functions are implemented as software functional units and sold or used as independent products, they can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of this application, in essence, or the part that contributes to the prior art, or a portion of the technical solution, can be embodied in the form of a software product. This computer software product is stored in a computer-readable storage medium and includes several instructions to cause a computer device (which may be a personal computer, server, or network device, etc.) to execute all or part of the steps of the methods described in the various embodiments of this application. The aforementioned computer-readable storage medium includes various media capable of storing program code, such as USB flash drives, portable hard drives, read-only memory (ROM), random access memory (RAM), magnetic disks, or optical disks.

[0197] This application also provides a smart city energy management system, the system comprising:

[0198] One or more memories for storing instructions; and

[0199] One or more processors are configured to retrieve and execute the instructions from the memory, performing the methods described above.

[0200] This application also provides a computer program product including instructions that, when executed, cause the terminal device and the network device to perform operations corresponding to the methods described above.

[0201] This application also provides a chip system including a processor for implementing the functions involved in the above description, such as generating, receiving, transmitting, or processing the data and / or information involved in the above methods.

[0202] This chip system can consist of chips or include chips and other discrete components.

[0203] The processor mentioned above can be a CPU, a microprocessor, an ASIC, or one or more integrated circuits that execute a program to control the method of transmitting the feedback information described above.

[0204] In one possible design, the chip system also includes a memory for storing necessary program instructions and data. The processor and the memory can be decoupled and located on different devices, connected via wired or wireless means to support the chip system in implementing the various functions described in the above embodiments. Alternatively, the processor and the memory can also be coupled to the same device.

[0205] Optionally, the computer instructions are stored in memory.

[0206] Optionally, the memory can be a storage unit within the chip, such as a register or cache. Alternatively, the memory can be a storage unit located outside the chip within the terminal, such as a ROM or other types of static storage devices that can store static information and instructions, such as RAM.

[0207] It is understood that the memory in this application may be volatile memory or non-volatile memory, or may include both volatile and non-volatile memory.

[0208] Non-volatile memory can be ROM, programmable read-only memory (PROM), erasable programmable read-only memory (EPROM), electrically erasable programmable read-only memory (EEPROM), or flash memory.

[0209] Volatile memory can be RAM, which is used as an external cache. There are many different types of RAM, such as static random access memory (SRAM), dynamic random access memory (DRAM), synchronous dynamic random access memory (SDRAM), double data rate synchronous dynamic random access memory (DDR SDRAM), enhanced synchronous dynamic random access memory (ESDRAM), synchronous link dynamic random access memory (SLDRAM), and direct memory bus random access memory.

[0210] The embodiments described in this specific implementation are preferred embodiments of this application and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A power energy management method, characterized in that, include: The primary power gap curve is calculated based on the predicted energy output curve and the predicted energy consumption curve. The primary power gap curve includes the duration and the peak gap group. Create virtual power plants within the coverage area based on duration; Determine the electrical output of the virtual power plant over a given period of time; The secondary power shortage curve is obtained by correcting the predicted energy output curve based on the power output and recalculating it. Repeatedly revise the secondary power gap curve until the secondary power gap curve disappears or the duration and / or peak value group of the secondary power gap curve are within the allowable range; Creating virtual power plants within the coverage area based on duration includes: The first power output unit is determined within the coverage area based on the duration. Based on the power output and peak deficit of the first power output unit, the power output units are screened to obtain the second power output unit, which then participates in the creation of a virtual power plant. The process of screening power output units also includes classifying the first power output unit into stable and unstable categories. Based on the peak value group of the gap, the region corresponding to the primary power gap curve is divided into a stable power gap region and an unstable power gap region. The first power output unit of the stable class is used to fill the stability gap, and the first power output unit of the unstable class is used to fill the unstable power gap area. The power output units are screened based on their power output and peak deficit levels, including: The gap peak group is divided into stable and unstable regions, with the stable region located below the unstable region. The first power output unit of the stable class is used to fill the stable region, and the first power output unit of the unstable class is used to fill the unstable region. The synthetic output curve of the unstable first power output unit that fills the unstable region is obtained; Verify and adjust the composite output curve to match the primary power shortage curve; The synthesized output curve of the unstable first power output unit that fills the unstable region includes: The primary power shortage curve is divided into multiple sub-power shortage curve segments, and these sub-power shortage curve segments are monotonic. The unstable power gap region is divided into segments based on the time periods corresponding to the gap peak group and the sub-power gap curve segments. Based on the monotonicity of the sub-power gap curve segments, unstable power gap regions are screened, and unstable power gap regions with consistent monotonicity are retained. The remaining unstable power shortage areas were statistically analyzed and ranked accordingly. Select at least the first one in the arrangement order as the first power output unit of the unstable class to fill the unstable region; The synthesized output curve of the unstable first power output unit that fills the unstable region.

2. The power energy management method according to claim 1, characterized in that, Also includes: Create a fluctuating region based on the primary power shortage curve; Determine the duration of the synthesized output curve within the fluctuation region; The first power output unit of the unstable class is selected to fill the unstable region based on the length of time it exists, so that the number of the first power output units of the unstable class filling the unstable region is minimized.

3. The power energy management method according to claim 1 or 2, characterized in that, After obtaining the synthesized output curve, it also includes: Identify the abnormal regions on the synthesized output curve, select a coordination region within the coverage area, and determine the capacity of the coordination region; The capacity is checked based on the abnormal area, ensuring that the capacity is greater than or equal to the abnormal area. The coordinated area is a residential power consumption area, and the power input of the coordinated area comes from the same power supply end. The number of coordination areas must be at least one.

4. The power energy management method according to claim 1, characterized in that, When the duration of the secondary power shortage curve and / or the peak value group of the shortage are within the allowable range, it also includes: The area within the coverage area is divided into multiple independent areas, including residential power consumption areas and industrial power consumption areas. Adjustment strategies for independent areas are selected based on the duration. These strategies include adjusting the power supply voltage of civilian power-consuming areas, adjusting the power supply voltage of industrial power-consuming areas, and disconnecting power to industrial power-consuming areas.

5. A power energy management device, characterized in that, include: The first calculation unit is used to calculate the primary power gap curve based on the predicted energy output curve and the predicted energy consumption curve. The primary power gap curve includes the duration and the gap peak group. Create a unit to create a virtual power plant within the coverage area based on the duration; The second calculation unit is used to determine the electrical energy output of the virtual power plant over a given period of time. The third calculation unit is used to correct the predicted energy output curve based on the power output and recalculate the secondary power gap curve. The correction processing unit is used to repeatedly correct the secondary power gap curve until the secondary power gap curve disappears or the duration and / or peak value group of the secondary power gap curve are within the allowable range. Creating virtual power plants within the coverage area based on duration includes: The first power output unit is determined within the coverage area based on the duration. Based on the power output and peak deficit of the first power output unit, the power output units are screened to obtain the second power output unit, which then participates in the creation of a virtual power plant. The process of screening power output units also includes classifying the first power output unit into stable and unstable categories. Based on the peak value group of the gap, the region corresponding to the primary power gap curve is divided into a stable power gap region and an unstable power gap region. The first power output unit of the stable class is used to fill the stability gap, and the first power output unit of the unstable class is used to fill the unstable power gap area. The power output units are screened based on their power output and peak deficit levels, including: The gap peak group is divided into stable and unstable regions, with the stable region located below the unstable region. The first power output unit of the stable class is used to fill the stable region, and the first power output unit of the unstable class is used to fill the unstable region. The synthetic output curve of the unstable first power output unit that fills the unstable region is obtained; Verify and adjust the composite output curve to match the primary power shortage curve; The synthesized output curve of the unstable first power output unit that fills the unstable region includes: The primary power shortage curve is divided into multiple sub-power shortage curve segments, and these sub-power shortage curve segments are monotonic. The unstable power gap region is divided into segments based on the time periods corresponding to the gap peak group and the sub-power gap curve segments. Based on the monotonicity of the sub-power gap curve segments, unstable power gap regions are screened, and unstable power gap regions with consistent monotonicity are retained. The remaining unstable power shortage areas were statistically analyzed and ranked accordingly. Select at least the first one in the arrangement order as the first power output unit of the unstable class to fill the unstable region; The synthesized output curve of the unstable first power output unit that fills the unstable region.

6. A smart city energy management system, characterized in that, The system includes: One or more memories for storing instructions; and One or more processors are configured to retrieve and execute the instructions from the memory to perform the method as described in any one of claims 1 to 4.

7. A computer-readable storage medium, characterized in that, The computer-readable storage medium includes: The program, when run by the processor, executes the method as described in any one of claims 1 to 4.

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