Energy microgrid group operation control method and device and computer equipment

Abstract

The invention relates to an energy microgrid group operation control method and device and computer equipment. The method comprises the following steps: acquiring a target electric power resource transfer amount under the condition that the virtual resource consumption of a micro-grid is minimum; on the basis of the target power resource transfer amount, the first virtual resource unit consumption, the second power resource transfer amount and the second virtual resource unit consumption of all microgrids in the energy microgrid group, the generated target virtual resource transfer-in amount and the target virtual resource transfer-out amount of the energy management center are balanced; updating the unit consumption of the first virtual resource; and returning to the micro-grid data acquisition step until the difference between the first virtual resource unit consumption of the current cycle process and the first virtual resource unit consumption of the last cycle process is lower than a preset value, and obtaining a target first virtual resource unit consumption and a target micro-grid virtual resource consumption for controlling the operation of the energy micro-grid group. By adopting the method, the operation of the energy microgrid group can be reliably controlled.

Description

Technical Field

[0001] The present application relates to the field of power electronics technology, and in particular to an energy microgrid operation control method, device and computer equipment. Background Art

[0002] Integrated energy microgrids contain not only multiple distributed power sources but also multiple energy storage devices, ensuring efficient and stable energy storage and utilization. Therefore, effectively controlling the operation of integrated energy microgrids has become a key issue that needs to be addressed.

[0003] Traditional research exploring the optimized operation of integrated energy microgrid clusters primarily involves: first, adopting a fixed time-of-use electricity pricing strategy for each microgrid within the cluster. This strategy is then used to calculate the operating costs of each microgrid, thereby controlling the cluster's operations. However, current methods for controlling the operation of energy microgrid clusters are unreliable. Summary of the Invention

[0004] Based on this, it is necessary to provide a reliable energy microgrid operation control method, device, computer equipment, computer-readable storage medium and computer program product to address the above technical problems.

[0005] In a first aspect, the present application provides an energy microgrid group operation control method, comprising:

[0006] Microgrid data acquisition steps: for each microgrid in the energy microgrid group, obtain the first power resource transfer amount of the microgrid when the microgrid is connected to the distribution network, and the first virtual resource unit consumption corresponding to the first power resource transfer amount; based on the first power resource transfer amount and the first virtual resource unit consumption, generate the microgrid virtual resource consumption when the microgrid is running; when the microgrid virtual resource consumption is minimized, obtain the target power resource transfer amount; obtain the second power resource transfer amount between the energy management center and the distribution network, and the second virtual resource unit consumption between the energy management center and the energy microgrid group, and based on the target power resource transfer amount, the first virtual resource unit consumption, the second power resource transfer amount and the second virtual resource unit consumption of all microgrids in the energy microgrid group consumption, generate the target virtual resource transfer-in and target virtual resource transfer-out of the energy management center, wherein the energy management center is the intermediary for the energy microgrid group to access the distribution network; when the target virtual resource transfer-in and the target virtual resource transfer-out are balanced, obtain the target second virtual resource unit consumption, and update the first virtual resource unit consumption based on the target second virtual resource unit consumption; return to the microgrid data acquisition step until the difference between the first virtual resource unit consumption in the current cycle process and the previous cycle process is lower than the preset threshold, obtain the target first virtual resource unit consumption and the target microgrid virtual resource consumption, and control the operation of the energy microgrid group based on the target first virtual resource unit consumption and the target microgrid virtual resource consumption.

[0007] In a second aspect, the present application further provides an energy microgrid group operation control device, comprising:

[0008] A microgrid data acquisition module is used for the microgrid data acquisition steps: for each microgrid in the energy microgrid group, obtaining the first power resource transfer amount of the microgrid when the microgrid is connected to the distribution network, and the first virtual resource unit consumption corresponding to the first power resource transfer amount; a microgrid virtual resource consumption generation module is used to generate the microgrid virtual resource consumption when the microgrid is running based on the first power resource transfer amount and the first virtual resource unit consumption; a microgrid virtual resource consumption optimization module is used to obtain the target power resource transfer amount when the microgrid virtual resource consumption is minimized; an energy management center optimization module is used to obtain the second power resource transfer amount between the energy management center and the distribution network, and the second virtual resource unit consumption between the energy management center and the energy microgrid group, and based on the target power resource transfer amount, the first virtual resource unit consumption, the second power resource transfer amount of all microgrids in the energy microgrid group The first virtual resource unit consumption updating module is used to obtain the target second virtual resource unit consumption when the target virtual resource input amount and the target virtual resource transfer-out amount are balanced, and to update the first virtual resource unit consumption based on the target second virtual resource unit consumption; the energy microgrid operation control module is used to return to the microgrid data acquisition step until the difference between the first virtual resource unit consumption in the current cycle and the previous cycle is lower than the preset threshold, to obtain the target first virtual resource unit consumption and the target microgrid virtual resource consumption, and to control the operation of the energy microgrid based on the target first virtual resource unit consumption and the target microgrid virtual resource consumption.

[0009] In a third aspect, the present application further provides a computer device comprising a memory and a processor, wherein the memory stores a computer program, and the processor implements the above steps when executing the computer program.

[0010] In a fourth aspect, the present application also provides a computer-readable storage medium on which a computer program is stored, and the above steps are implemented when the computer program is executed by a processor.

[0011] In a fifth aspect, the present application also provides a computer program product, including a computer program, which implements the above steps when executed by a processor.

[0012] The above-mentioned energy microgrid group operation control method, device, computer equipment, computer-readable storage medium and computer program product, during the whole process, first obtain the microgrid virtual resource consumption according to the first power resource transfer amount of the microgrid when the microgrid is connected to the distribution network and the first virtual resource unit consumption corresponding to the first power resource transfer amount, then obtain the target power resource transfer amount when the microgrid virtual resource consumption is minimum, and obtain the second power resource transfer amount between the energy management center and the distribution network, as well as the third virtual resource unit consumption between the energy management center and the energy microgrid group, and based on the target power resource transfer amount, the first virtual resource unit consumption, the second power resource transfer amount and the third virtual resource unit consumption of all microgrids, conduct a comprehensive analysis of the virtual resource transfer amount of the energy management center, generate the target virtual resource transfer-in amount and the target virtual resource transfer-out amount of the energy management center, and calculate the target virtual resource transfer-in amount at the target virtual resource transfer-in amount. While maintaining a balance with the target virtual resource transfer-out amount, the target second virtual resource unit consumption is obtained, and based on the target second virtual resource unit consumption, the first virtual resource unit consumption is iteratively updated until the difference between the first virtual resource unit consumption in the current cycle and the first virtual resource unit consumption in the previous cycle is lower than the preset threshold. Since the target microgrid virtual resource consumption at this time is the minimum consumption of the microgrid virtual resource consumption, the target first virtual resource unit consumption is the virtual resource unit consumption that maintains a balance between the target virtual resource transfer-in and the target virtual resource transfer-out of the energy management center, and the target microgrid virtual resource consumption and the target first virtual resource unit consumption are both stable parameter quantities after continuous iterative optimization. Therefore, the energy microgrid group can be controlled to operate reliably based on the target first virtual resource unit consumption and the target microgrid virtual resource consumption. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] In order to more clearly illustrate the technical solutions in the embodiments of the present application or related technologies, the following briefly introduces the drawings required for use in the embodiments of the present application or related technical descriptions. Obviously, the drawings described below are some embodiments of the present application. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without paying any creative work.

[0014] Figure 1 This is an application environment diagram of an energy microgrid group operation control method in one embodiment;

[0015] Figure 2 A schematic flow chart of an energy microgrid operation control method according to an embodiment;

[0016] Figure 3 A schematic diagram of an energy management center of an energy park communicating with an energy microgrid group through multiple energy management networks in one embodiment;

[0017] Figure 4 This is a structural block diagram of an energy microgrid operation control device in one embodiment;

[0018] Figure 5 FIG. 1 is a diagram showing the internal structure of a computer device in one embodiment. DETAILED DESCRIPTION

[0019] In order to make the purpose, technical solutions and advantages of this application more clear, the following further describes this application in detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are used to explain this application and are not intended to limit this application.

[0020] The energy microgrid group operation control method provided in the embodiment of the present application can be applied to Figure 1 In the application environment shown, a user interacts with terminal 102, triggering the energy microgrid cluster operation control control on terminal 102. Terminal 102 responds to the energy microgrid cluster operation control operation and sends an energy microgrid cluster operation control request to server 104. Server 104 receives the energy microgrid cluster operation control request and executes the energy microgrid cluster operation control method described in the following embodiments. Terminal 102 communicates with server 104 via a network. A data storage system can store data that server 104 needs to process. The data storage system can be integrated into server 104. Terminal 102 can be, but is not limited to, various personal computers, laptops, smartphones, tablets, IoT devices, and portable wearable devices.

[0021] In an exemplary embodiment, Figure 2 As shown, a method for controlling the operation of an energy microgrid group is provided. Figure 1 The server 104 in FIG. 1 is used as an example for explanation.

[0022] S100, microgrid data acquisition step: for each microgrid in the energy microgrid group, acquiring a first power resource transfer amount of the microgrid when the microgrid is connected to the distribution network, and a first virtual resource unit consumption corresponding to the first power resource transfer amount.

[0023] The energy microgrid cluster consists of multiple microgrids, each of which is connected to the distribution network via interconnection lines. Power resource transfer operations can be performed between the microgrid and the distribution network, transferring the remaining unused resources of the microgrid to the distribution network. During power resource transfers between the microgrid and the distribution network, the first power resource amount transferred has a corresponding virtual resource unit consumption. The virtual resource unit consumption is the amount of virtual resource consumed per unit of power resource transferred. In practical applications, virtual resources can refer to cost information. In this case, the first virtual resource unit consumption refers to the unit cost information for power resource transfer at time t. The first virtual resource unit consumption is the virtual resource unit consumption sent by the distribution network to the energy management center, which needs to be sent by the energy management center to the energy microgrid cluster.

[0024] Specifically, for each microgrid in the energy microgrid group, it is necessary to obtain the microgrid virtual resource consumption of each microgrid, and the microgrid virtual resource consumption includes the first virtual resource consumption corresponding to the power resource. In addition, the microgrid virtual resource consumption may also include other virtual resource consumptions corresponding to multiple devices or structures in the microgrid. In the process of obtaining the first virtual resource consumption corresponding to the power resource, it is first necessary to obtain the first power resource transfer amount of the network and the first virtual resource unit consumption corresponding to the first power resource transfer amount. At this time, the first virtual resource unit consumption is the initial first virtual resource unit consumption sent by the distribution network to the microgrid. In addition, the power resource transfer amount of the microgrid is a variable. In actual applications, the resource transfer amount often refers to power information. For example, the power resource transfer amount refers to the power information during the transfer of power resources.

[0025] S200 , generating a microgrid virtual resource consumption amount during microgrid operation based on a first power resource transfer amount and a first virtual resource unit consumption amount.

[0026] The first virtual resource unit consumption actually refers to the virtual resource amount consumed when transferring resources per unit of the first power resource transfer amount.

[0027] Specifically, when the power resource transfer amount and the first virtual resource unit consumption are obtained, the microgrid virtual resource consumption during microgrid operation can be generated based on the first power resource transfer amount and the first virtual resource unit consumption. Furthermore, generating the first virtual resource consumption based on the first power resource transfer amount and the first virtual resource unit consumption includes: obtaining the microgrid virtual resource consumption during microgrid operation based on the product of the first power resource transfer amount and the first virtual resource unit consumption. Furthermore, when the microgrid virtual resource consumption also includes other virtual resource consumptions corresponding to multiple devices or structures in the microgrid, the first virtual resource consumption can also be generated based on the first power resource transfer amount and the first virtual resource unit consumption, and the first virtual resource consumption can be combined with the other virtual resource consumptions to generate the microgrid virtual resource consumption during microgrid operation.

[0028] Taking virtual resources as cost information, the first virtual resource unit consumption as the unit price of the microgrid purchasing or selling electricity, and the first virtual resource consumption as the cost of the microgrid purchasing or selling electricity as an example, the first virtual resource consumption of the microgrid is generated based on the first virtual resource unit consumption and the first power resource transfer amount. The cost information of the microgrid purchasing electricity can be generated based on the product of the unit price of the microgrid purchasing electricity and the amount of electricity purchased by the microgrid, or the cost information of the microgrid selling electricity can be generated based on the product of the unit price of the microgrid selling electricity and the amount of electricity sold by the microgrid.

[0029] S300 , obtaining a target power resource transfer amount when the microgrid virtual resource consumption is minimized.

[0030] Specifically, when the microgrid virtual resource consumption is minimized, a target power resource transfer amount for the minimum microgrid virtual resource consumption can be obtained. It should be noted that the first power resource transfer amount is initially a variable resource consumption amount, and the variable microgrid virtual resource consumption is generated using the first power resource transfer amount. When the microgrid virtual resource consumption is minimized, a fixed microgrid virtual resource consumption can be obtained, and at this time, the first power resource transfer amount is also fixed. Therefore, the target power resource transfer amount can be generated based on the minimum microgrid virtual resource consumption.

[0031] S400, obtain the second power resource transfer amount between the energy management center and the distribution network, and the second virtual resource unit consumption between the energy management center and the energy microgrid group, and generate the target virtual resource transfer-in amount and target virtual resource transfer-out amount of the energy management center based on the target power resource transfer amount, the first virtual resource unit consumption, the second power resource transfer amount and the second virtual resource unit consumption of all microgrids in the energy microgrid group, wherein the energy management center is the intermediary for the energy microgrid group to access the distribution network.

[0032] Specifically, the energy microgrid group is composed of several microgrids, and each microgrid has a target power resource transfer amount that minimizes its microgrid virtual resource consumption. At this time, the target power resource transfer amounts of all microgrids in the energy microgrid group can be aggregated. It should be noted that the energy management center is a virtual organization, which can be regarded as an intermediary organization between the energy microgrid group and the distribution network. In other words, the power resource transfer was originally carried out between the energy microgrid group and the distribution network, but in this application, the energy microgrid group needs to transfer power resources indirectly through the energy management center and the distribution network. In addition, the initial first virtual resource unit consumption in this application is the first virtual resource unit consumption corresponding to the power resource sent by the distribution network to the energy microgrid group through the energy management center. In order to make the energy microgrid group operate more reliably, the energy management center will update the first virtual resource unit consumption in real time and send the updated first virtual resource unit consumption to the energy microgrid group.

[0033] Furthermore, the energy management center updates the first virtual resource unit consumption by collecting the target power resource transfer amounts of all microgrids in the energy microgrid group. Through the target power resource transfer amounts of all microgrids in the energy microgrid group, the virtual resource transfer amounts between all microgrids in the energy microgrid group and the energy management center can be obtained, and the virtual resource transfer amounts between the energy management center and the distribution network also need to be obtained. Then, combined with the virtual resource transfer amounts of the energy management center in other situations, the target virtual resource transfer amount of the energy management center is generated, which includes the virtual resource transfer-in amount and the virtual resource transfer-out amount.

[0034] Furthermore, the virtual resource unit consumption corresponding to the virtual resource transfer amount between all microgrids in the energy microgrid group and the energy management center is the second virtual resource unit consumption, and the virtual resource unit consumption corresponding to the virtual resource transfer amount between the energy management center and the distribution network is the first virtual resource unit consumption. At this time, based on the target power resource transfer amount of all microgrids in the energy microgrid group and the second virtual resource unit consumption, the virtual resource transfer amount between all microgrids in the energy microgrid group and the energy management center can be generated, and based on the second power resource transfer amount between the distribution network and the energy management center and the first virtual resource unit consumption, the virtual resource transfer amount between the distribution network and the energy management center can be generated.

[0035] S500 : When a target virtual resource transfer-in amount and a target virtual resource transfer-out amount are balanced, a target second virtual resource unit consumption is obtained, and based on the target second virtual resource unit consumption, the first virtual resource unit consumption is updated.

[0036] Specifically, the second virtual resource unit consumption between the energy management center and the energy microgrid group is a variable. When the target virtual resource transfer-in and the target virtual resource transfer-out are balanced, the second virtual resource unit consumption at this time can be obtained, and the second virtual resource unit consumption at this time can be used as the target second virtual resource unit consumption. Based on the target second virtual resource unit consumption, the first virtual resource unit consumption between the energy microgrid group and the distribution network is updated.

[0037] S600, return to the microgrid data acquisition step until the difference between the first virtual resource unit consumption in the current cycle process and the previous cycle process is lower than the preset threshold, obtain the target first virtual resource unit consumption and the target microgrid virtual resource consumption, and control the operation of the energy microgrid group based on the target first virtual resource unit consumption and the target microgrid virtual resource consumption.

[0038] Specifically, after the first virtual resource unit consumption is updated, the process returns to the microgrid data acquisition step, and the microgrid virtual resource consumption is continuously generated through the updated first virtual resource unit consumption, so as to iteratively update the first virtual resource unit consumption again. In other words, the present application updates the first virtual resource unit consumption between the energy management center and the microgrid through the microgrid virtual resource consumption of the energy microgrid group, and continues to update the microgrid virtual resource consumption based on the first virtual resource unit consumption, so as to iteratively update the microgrid virtual resource consumption and the first virtual resource unit consumption, until the difference between the first virtual resource unit consumption in the current cycle and the previous cycle is lower than the preset threshold, and the latest first virtual resource unit consumption is used as the target first virtual resource unit consumption, and the latest microgrid virtual resource consumption is used as the target microgrid virtual resource consumption. Finally, based on the target first virtual resource unit consumption and the target microgrid virtual resource consumption, the operation of the energy microgrid group is controlled.

[0039] In the above-mentioned energy microgrid group operation control method, during the whole process, the microgrid virtual resource consumption is first obtained based on the first power resource transfer amount of the microgrid when the microgrid is connected to the distribution network and the first virtual resource unit consumption corresponding to the first power resource transfer amount, and then the target power resource transfer amount when the microgrid virtual resource consumption is minimum is obtained, and the second power resource transfer amount between the energy management center and the distribution network, as well as the third virtual resource unit consumption between the energy management center and the energy microgrid group are obtained, and based on the target power resource transfer amount, the first virtual resource unit consumption, the second power resource transfer amount and the third virtual resource unit consumption of all microgrids in the energy microgrid group, the virtual resource transfer amount of the energy management center is comprehensively analyzed to generate the target virtual resource transfer-in amount and the target virtual resource transfer-out amount of the energy management center, and the target virtual resource transfer-in amount and the target virtual resource transfer-out amount are calculated and compared. While maintaining balance, the target second virtual resource unit consumption is obtained, and based on the target second virtual resource unit consumption, the first virtual resource unit consumption is iteratively updated until the difference between the first virtual resource unit consumption in the current cycle and the first virtual resource unit consumption in the previous cycle is lower than the preset threshold. Since the target microgrid virtual resource consumption at this time is the minimum consumption of the microgrid virtual resource consumption, the target first virtual resource unit consumption is the virtual resource unit consumption that maintains a balance between the target virtual resource transfer-in and the target virtual resource transfer-out of the energy management center, and the target microgrid virtual resource consumption and the target first virtual resource unit consumption are both stable parameter quantities after continuous iterative optimization. Therefore, the energy microgrid group can be controlled to operate reliably based on the target first virtual resource unit consumption and the target microgrid virtual resource consumption.

[0040] In an exemplary embodiment, the first power resource transfer amount includes a first power input resource amount and a first power output resource amount, and the first virtual resource unit consumption corresponding to the first power resource transfer amount includes an input virtual resource unit consumption corresponding to the first power input resource amount and an output virtual resource unit consumption corresponding to the first power output resource amount. Based on the first power resource transfer amount and the first virtual resource unit consumption, the virtual resource consumption of the microgrid during microgrid operation is generated, including: generating an input virtual resource consumption between the microgrid and the distribution network based on the first power input resource amount and the input virtual resource unit consumption; generating an output virtual resource consumption between the microgrid and the distribution network based on the first power output resource amount and the output virtual resource unit consumption; and generating the virtual resource consumption of the microgrid during microgrid operation based on the input virtual resource consumption and the output virtual resource consumption.

[0041] The first power-input resource amount refers to the power resource amount transferred from the outside to the microgrid, and the first power-output resource amount refers to the power resource amount transferred from the microgrid to the outside.

[0042] Specifically, a first power transfer-in resource amount and a first power transfer-out resource amount are obtained, and an input virtual resource unit consumption corresponding to the first power transfer-in resource amount and an output virtual resource unit consumption corresponding to the first power transfer-out resource amount are obtained. When power resources are transferred into the microgrid, an input virtual resource consumption between the microgrid and the distribution network is generated based on the first power transfer-in resource amount and the input virtual resource unit consumption. When power resources are transferred out of the microgrid, an output virtual resource consumption between the microgrid and the distribution network is generated based on the first power transfer-out resource amount and the output virtual resource unit consumption. Finally, based on the input virtual resource consumption and the output virtual resource consumption, a microgrid virtual resource consumption is generated during the operation of the microgrid. Furthermore, based on the input virtual resource consumption and the output virtual resource consumption, the microgrid virtual resource consumption during the operation of the microgrid is generated, which actually means obtaining the difference between the input virtual resource consumption and the output virtual resource consumption, and using the difference as the microgrid virtual resource consumption.

[0043] In an exemplary embodiment, an energy microgrid cluster adopts a multi-node grid-connected model. The transfer of power resources between the microgrids and the distribution network within the energy microgrid cluster is accomplished through connections between the busbars within the microgrid and the node lines between the distribution network. For example, if power resources are transferred in for power purchase and transferred out for power sales, the power transfer-in amount is the power purchased by the microgrid from the external line distribution network via the i-th grid-connected node, and the power transfer-out amount is the power sold by the microgrid to the external line via the i-th grid-connected node. The unit consumption of the virtual resources transferred in is the power purchase price, and the unit consumption of the virtual resources transferred out is the power sales price. Based on the power purchase price and the power purchase price, a cost for transferring power resources in between the microgrid and the distribution network is generated. Based on the power sales price and the power sales price, a cost for transferring power resources out between the microgrid and the distribution network is generated.

[0044] In the above embodiment, the microgrid virtual resource consumption is accurately generated through the first power transfer-in resource amount, the first power transfer-out resource amount, the transfer-in virtual resource unit consumption and the transfer-out virtual resource unit consumption.

[0045] In an exemplary embodiment, based on the first power resource transfer amount and the first virtual resource unit consumption, the microgrid virtual resource consumption during microgrid operation is generated, including: generating a first virtual resource consumption based on the first power resource transfer amount and the first virtual resource unit consumption; obtaining an additional resource transfer amount, and generating a second virtual resource consumption based on the additional resource transfer amount; generating the microgrid virtual resource consumption during microgrid operation based on the first virtual resource consumption and the second virtual resource consumption.

[0046] Specifically, a microgrid is equipped with several additional devices or structures. The virtual resource consumption of the microgrid during operation includes not only the virtual resource consumption between the microgrid and the distribution network, but also the additional virtual resource consumption of the additional resources generated by the operation of the device structures. These additional devices or structures include, but are not limited to, energy generation equipment, energy storage equipment, and the interconnection lines between the distribution network and the microgrid. The device units that actively supply energy in an energy microgrid cluster are energy generation equipment, and the device units that store energy in an energy microgrid cluster are energy storage equipment. For example, energy generation equipment includes gas equipment and diesel engines, and gas equipment includes gas turbines and gas boilers.

[0047] Based on the first power resource transfer amount and the first virtual resource unit consumption, a virtual resource consumption amount between the microgrid and the distribution network, namely, the first virtual resource consumption amount, is generated. In the process of obtaining the additional virtual resource consumption corresponding to the additional resource, the additional resource transfer amount of the additional resource of the microgrid needs to be obtained. In this case, the additional resource transfer amount is a variable. In some embodiments, the additional resources include, but are not limited to, the production capacity resources of the production capacity equipment, the energy storage resources of the energy storage equipment, and the connection resources of the tie line between the microgrid and the distribution line. Furthermore, based on the additional resource transfer amount, a second virtual resource consumption amount corresponding to the additional resource can be generated. In this process, first, a third virtual resource unit consumption amount corresponding to the additional resource needs to be obtained. The second virtual resource consumption amount is then combined with the additional resource transfer amount and the third virtual resource unit consumption to generate the second virtual resource consumption. In some embodiments, when the additional resources include the production capacity resources of the production capacity equipment, the energy storage resources of the energy storage equipment, and the connection resources of the tie line between the microgrid and the distribution line, the second virtual resource consumption corresponding to the production capacity resource also includes the sum of the third virtual resource consumption corresponding to the production capacity resource, the fourth virtual resource consumption corresponding to the energy storage resource, and the fifth virtual resource consumption corresponding to the connection resource. In practical applications, the first virtual resource consumption refers to the cost of transferring power resources at time t, and the second virtual resource consumption refers to the cost of transferring additional resources at time t.

[0048] Finally, the first virtual resource consumption corresponding to the power resource and the second virtual resource consumption corresponding to the additional resource are superimposed to generate the virtual resource consumption of the microgrid when the microgrid is running.

[0049] In the above embodiment, by obtaining the additional resource transfer amount and accurately generating the second virtual resource consumption based on the additional resource transfer amount, and then superimposing the first virtual resource consumption and the second virtual resource consumption, the virtual resource consumption of the microgrid during operation of the microgrid is generated comprehensively and without omission.

[0050] In an exemplary embodiment, the additional power information includes the capacity resource transfer amount of the capacity equipment, the energy storage call resource transfer amount of the energy storage equipment, and the connection resource transfer amount of the connection line between the microgrid and the distribution network; based on the additional resource transfer amount, a second virtual resource consumption is generated, including: based on the electric interaction power and the first virtual resource unit consumption, a first virtual resource consumption is generated; a third virtual resource unit consumption corresponding to the capacity resource of the capacity equipment and a fourth virtual resource unit consumption corresponding to the energy storage call resource of the energy storage equipment are obtained; based on the third virtual resource unit consumption and the capacity resource transfer amount, a third virtual resource consumption is generated; based on the fourth virtual resource unit consumption and the energy storage call resource transfer amount, a fourth virtual resource consumption is generated; based on the connection resource transfer amount, the power transfer-in resource amount, the transfer-in virtual resource unit consumption, the power transfer-out resource amount and the transfer-out virtual resource unit consumption, a fifth virtual resource consumption is generated; based on the third virtual resource consumption, the fourth virtual resource consumption and the fifth virtual resource consumption, a second virtual resource consumption is generated.

[0051] Specifically, the device structure in the microgrid also includes power generation equipment, energy storage equipment, and the interconnection line between the microgrid and the distribution network. These devices or structures will generate corresponding virtual resource consumption under the operating status information. Therefore, first, the power generation resource transfer amount of the power generation equipment and the third virtual resource unit consumption corresponding to the power generation resource, the energy storage call resource transfer amount of the energy storage equipment and the fourth virtual resource unit consumption corresponding to the energy storage call resource are obtained. Based on the third virtual resource unit consumption and the power generation resource transfer amount, a third virtual resource consumption is generated. Based on the fourth virtual resource unit consumption and the energy storage call resource transfer amount, a fourth virtual resource consumption is generated. Based on the fifth virtual resource unit consumption and the interconnection resource transfer amount, a fifth virtual resource consumption is generated. The third virtual resource consumption, the fourth virtual resource consumption, and the fifth virtual resource consumption are then aggregated to generate a second virtual resource consumption. At this time, the second virtual resource consumption can comprehensively summarize the virtual resource consumption corresponding to the additional resources in the microgrid.

[0052] In an exemplary embodiment, the capacity resource transfer amount can be the output power of the capacity equipment, and the third virtual resource unit consumption can be the capacity resource unit price of the capacity equipment. Based on the third virtual resource unit consumption and the capacity resource transfer amount, the third virtual resource consumption is generated, including: based on the output power of the capacity equipment and the capacity resource unit price, the operating cost information of the capacity equipment is generated.

[0053] Furthermore, power generation equipment includes diesel equipment and gas equipment. For example, diesel equipment can be a diesel generator set, and gas equipment can be a gas turbine or gas boiler. Taking the diesel generator set as an example, the output power of the diesel generator set at time t and the unit price of diesel are obtained to generate the operating cost of the diesel equipment. The generated operating cost of the diesel generator set can be: , where P DI，t represents the output of the microgrid diesel generator set at time t; a DI 、b DI and c DI Represent the corresponding cost coefficients of the diesel generator set. Taking the gas turbine and gas boiler as an example, the electric interaction power of the gas turbine at time t, the output thermal power of the gas boiler at time t, the unit price and calorific value of natural gas, the efficiency of natural gas conversion to electricity of the gas turbine, and the efficiency of the gas boiler are obtained to generate the operating costs of the gas turbine and gas boiler. Among them, the generated operating costs of the gas turbine and gas boiler are f GAS The expression can be: , where C ch is the unit price of natural gas; Q ch is the calorific value of natural gas; P mt，t is the output power of the micro gas turbine, η mt The efficiency of converting gas into electricity; H gb，t is the thermal power output of the microgrid gas boiler, η gb For its efficiency.

[0054] In an exemplary embodiment, the fourth virtual resource unit consumption may be a unit energy storage call cost for charging and discharging the energy storage device, and the energy storage call resource transfer amount may be the interaction power between the k-th bus in the microgrid and the energy storage device. Generating the fourth virtual resource consumption based on the fourth virtual resource unit consumption and the energy storage call resource transfer amount includes: generating an operating cost of the energy storage device based on the unit energy storage call cost for charging and discharging the energy storage device and the interaction power between all buses in the microgrid and the energy storage device, wherein the expression for generating the operating cost of the energy storage device may be: , k is included in BU, where C ES1 Indicates the call cost when charging / discharging 1 kWh of energy storage on the microgrid side; BU is the set of buses in the microgrid that are connected to the energy storage; represents the interaction power between the kth bus and the energy storage device at time t. In this embodiment, the expression for the operating cost of the energy storage device has an absolute value. When optimizing the microgrid's virtual resource consumption, the absolute value term can be eliminated by introducing intermediate variables to convert it into a quadratic programming model. This will not be described in detail here.

[0055] In an exemplary embodiment, taking the tie resource transfer amount as the voltage of the tie line between the microgrid and the distribution network as an example, generating a fifth virtual resource consumption based on the tie line voltage, the power transfer-in resource amount, the transfer-in virtual resource unit consumption, the power transfer-out resource amount, and the transfer-out virtual resource unit consumption includes: obtaining the equivalent resistance of the microgrid return line and the inverter, and combining the tie line voltage, the equivalent resistance, the power transfer-in resource amount, the transfer-in virtual resource unit consumption, the power transfer-out resource amount, and the transfer-out virtual resource unit consumption to generate a power loss cost on the tie line. The expression for generating the power loss cost on the tie line includes:

[0056]

[0057] in, is the power purchased from the external line by the i-th grid-connected node of the microgrid at time t, is the power sold by the i-th grid-connected node of the microgrid to the external line at time t, C t，buy and C t，sell They represent the time-of-use electricity prices for purchasing and selling electricity at time t, is the square of the voltage value of the i-th grid-connected node of the microgrid at time t; R represents the equivalent resistance of the bus line and inverter on the microgrid side.

[0058] In the above embodiment, the additional resource transfer amount includes the capacity resource transfer amount of the capacity equipment, the energy storage call resource transfer amount of the energy storage equipment, and the communication resource transfer amount of the communication line between the microgrid and the distribution network. Based on the additional resource transfer amount including the capacity resource transfer amount of the capacity equipment, the energy storage call resource transfer amount of the energy storage equipment, and the communication resource transfer amount of the communication line between the microgrid and the distribution network, other virtual resource consumption amounts other than the first virtual resource consumption amount between the microgrid and the distribution network can be more comprehensively obtained, so that the virtual resource consumption amount of the microgrid can be accurately generated.

[0059] In an exemplary embodiment, generating a target virtual resource transfer-in amount and a target virtual resource transfer-out amount of an energy management center based on the target power resource transfer amount, the first virtual resource unit consumption amount, the second power resource transfer amount, and the second virtual resource unit consumption amount of all microgrids in the energy microgrid group includes:

[0060] Obtain the sixth virtual resource consumption corresponding to the renewable resources of the energy management center and the seventh virtual resource consumption corresponding to the shared energy storage resources of the shared energy storage equipment between the energy management center and the distribution network; based on the target power resource transfer amount of all microgrids in the energy microgrid group, generate the second power resource transfer-in amount and the second power resource transfer-out amount between the energy management center and the energy microgrid group, and based on the second power resource transfer amount, obtain the third power resource transfer-in amount and the third power resource transfer-out amount between the energy management center and the distribution network; based on the second power resource transfer amount and the second virtual resource unit consumption, and the third power resource transfer amount and the first virtual resource unit consumption, generate the target virtual resource transfer-out amount , and based on the second power resource transfer-in amount and the second virtual resource unit consumption, as well as the third power resource transfer-in amount and the first virtual resource unit consumption, generate a virtual resource transfer-in amount; when the microgrid virtual resource consumption is minimum, obtain the target additional resource transfer amount; based on the target additional resource transfer amount, generate the carbon emission resource transfer amount of the energy management center, and based on the carbon emission resource transfer amount, generate the eighth virtual resource consumption; based on the sixth virtual resource consumption, the seventh virtual resource consumption, the virtual resource transfer-in amount and the eighth virtual resource consumption, generate the virtual resource transfer-in amount; when the virtual resource transfer-in amount and the target virtual resource transfer-out amount are balanced, update the first virtual resource unit consumption.

[0061] Among them, the energy management center is the intermediary organization between the distribution network and the energy microgrid group. The energy management center is responsible for transferring power resources on behalf of the distribution network and the energy microgrid group. In addition, the energy management center can also transfer power resources between the distribution network.

[0062] Specifically, the energy management center needs to meet the constraint condition of maintaining a balance between the target virtual resource transfer-in amount and the target virtual resource transfer-out amount, and the energy management center can not only transfer power resources with the energy microgrid group, but also transfer power resources between the energy management center and the distribution network. Therefore, the present application can generate the second power resource transfer-in amount and the second power resource transfer-out amount between the energy management center and the energy microgrid group based on the target power resource transfer amount of all microgrids in the energy microgrid group, and obtain the third power resource transfer-in amount and the third power resource transfer-out amount between the energy management center and the distribution network based on the virtual resource transfer amount.

[0063] Since the power resources that the energy management center needs to transfer out are the second power resource transfer-out amount and the third power resource transfer-out amount, the target virtual resource transfer-out amount can be generated based on the second power resource transfer-out amount, the third power resource transfer-out amount, the first virtual resource unit consumption, and the second virtual resource unit consumption. In addition, the energy management center can also generate a virtual resource transfer-in amount based on the second power resource transfer-in amount, the third power resource transfer-in amount, the first virtual resource unit consumption, and the second virtual resource unit consumption. Among them, the first virtual resource unit consumption is the virtual resource unit consumption between the distribution network and the energy management center, and the virtual resource unit consumption between the energy management center and the energy microgrid group is the second virtual resource unit consumption. The first virtual resource unit consumption is divided into the transfer-in virtual resource unit consumption and the transfer-out virtual resource unit consumption, and the second virtual resource unit consumption includes the second transfer-in virtual resource unit consumption and the second transfer-out virtual resource unit consumption. Based on the second power resource transfer-out amount and the second transfer-out virtual resource unit consumption, as well as the third power resource transfer-out amount and the transfer-out virtual resource unit consumption, a target virtual resource transfer-out amount is generated; based on the second power resource transfer-in amount and the second transfer-in virtual resource unit consumption, as well as the third power resource transfer-in amount and the transfer-in virtual resource unit consumption, a virtual resource transfer-in amount is generated.

[0064] Furthermore, the Energy Management Center can also obtain green electricity indicators from the Green Certificate market, where Green Certificates serve as the "electronic ID card" for renewable energy electricity. Therefore, the Energy Management Center's virtual resource transfer-in also includes the sixth virtual resource consumption corresponding to the Energy Management Center's renewable resources. This sixth virtual resource consumption is actually derived from the power resource transfer-out from the distribution network to the Energy Management Center and the second virtual resource unit consumption between the distribution network and the Energy Management Center. Furthermore, the Energy Management Center's virtual resource transfer-in also includes the seventh virtual resource consumption corresponding to the shared energy storage resources of the shared energy storage equipment between the Energy Management Center and the distribution network.

[0065] The virtual resource transfer amount of the energy management center also includes the eighth virtual resource consumption corresponding to the carbon emission resources. This application can also obtain the target additional resource transfer amount when the microgrid virtual resource consumption is minimized. The target gas resource transfer amount in the target additional resource transfer amount is closely related to the carbon emissions in the energy microgrid group. Based on the target gas resource transfer amount, the carbon emission resource transfer amount of the energy management center can be generated, and based on the carbon emission resource transfer amount, the eighth virtual resource consumption can be generated.

[0066] A target virtual resource transfer-in amount is generated by combining the sixth virtual resource consumption amount, the seventh virtual resource consumption amount, and the virtual resource transfer-in amount. When the target virtual resource transfer-in amount and the target virtual resource transfer-out amount are balanced, the first virtual resource unit consumption at that time is obtained, and the initial first virtual resource unit consumption is updated based on the first virtual resource unit consumption.

[0067] In an exemplary embodiment, the target virtual resource transfer-in amount and the target virtual resource transfer-out amount of the energy management center are balanced. In fact, the energy management center must satisfy the non-profit constraint and the net income of the energy management center must be zero. The specific expression may include:

[0068]

[0069] in, represents the electricity price sold by the energy management center to the microgrid at time t, represents the electricity price sold by the energy management center to the distribution network at time t, represents the power sold by the energy management center to the distribution network at time t, represents the power sold by the energy management center to the i-th microgrid at time t, represents the electricity price purchased by the energy management center from the microgrid at time t, represents the electricity price purchased by the energy management center from the distribution network at time t, represents the power sold by the energy management center to the distribution network at time t, represents the power purchased by the energy management center from the i-th microgrid at time t, C ES represents the leasing cost of the shared energy storage unit power in the distribution network leased by the energy management center (using a constant), and They represent the discharge power and charging power of the shared energy storage in the leased distribution network of the energy management center, represents the unit cost of the energy management center to purchase green certificates (using a constant), W represents the unit cost of the energy management center to purchase carbon dioxide emission indicators (using a constant), co2 Represents the total carbon dioxide emissions of all microgrids.

[0070] In an exemplary embodiment, the difference between the first virtual resource unit consumption issued by the energy management center to the energy microgrid group and the first virtual resource unit consumption of the initial distribution network is There are upper and lower limit constraints, which can be expressed as:

[0071]

[0072] in, and are the lower and upper limits of the difference in electricity prices of the energy management center, The unit price of electricity sold by the energy management center to the energy microgrid group, that is, the updated first virtual resource unit consumption, The unit price of electricity purchased by the energy management center from the distribution network, that is, the initial first virtual resource unit consumption.

[0073] In the above embodiment, the first virtual resource unit consumption is accurately updated while maintaining a balance between the target virtual resource transfer-in and target virtual resource transfer-out of the energy management center through the virtual resource consumption corresponding to the renewable resources of the energy management center, the shared energy storage resources of the shared energy storage equipment between the energy management center and the distribution network, and the power interaction resources between the energy management center and the energy microgrid group.

[0074] In an exemplary embodiment, obtaining a target power resource transfer amount and a target additional resource transfer amount includes: obtaining power generation equipment operating status information of power generation equipment in a microgrid, energy coupling equipment operating status information of energy coupling equipment, energy storage equipment operating status information of energy storage equipment, interconnection line capacity information of interconnection lines, renewable energy unit operating status information of renewable energy units, and first resource balance status information of the microgrid; verifying the power generation equipment operating status information, energy coupling equipment operating status information, energy storage equipment operating status information, interconnection line capacity information, renewable energy unit operating status information, and first resource balance status information; and obtaining the target power resource transfer amount and the target additional resource transfer amount when the verification result indicates that the power generation equipment operating status information, energy coupling equipment operating status information, energy storage equipment operating status information, interconnection line capacity information, renewable energy unit operating status information, and first resource balance status information are all normal.

[0075] Specifically, the present application takes minimizing the consumption of microgrid virtual resources as the optimization goal. In the process of minimizing the consumption of microgrid virtual resources, the microgrid also needs to meet the following constraints: the operating status constraints of the power generation equipment in the microgrid, the operating status constraints of the energy coupling equipment, the operating status constraints of the energy storage equipment, the interconnection line capacity constraints of the interconnection line, the operating status constraints of the renewable energy unit, and the microgrid resource balance status constraints of the microgrid. Therefore, it is necessary to verify the operating status information of the power generation equipment, the operating status information of the energy coupling equipment, the operating status information of the energy storage equipment, the interconnection line capacity information, the operating status information of the renewable energy unit, and the first resource balance status information to determine whether these status information meet the corresponding constraints. If so, it is considered that the verification of this status information is successful and the status information is normal. For example, taking the resource transfer amount as power information and the virtual resource consumption as cost as an example, the constraints that the microgrid needs to meet include:

[0076] The first type is the operating status constraint of production capacity equipment.

[0077] Specifically, the power generation equipment in this article includes gas turbines, diesel generators, and gas boilers. The main operating status information constraints of this type of equipment are output constraints and ramp constraints, as shown in the following formula:

[0078] S gen，t P gen，out，min ≤P gen，out，t ≤S gen，t P gen，out，max

[0079] P gen，lan ≤P gen，out，t -P gen，out，t-1 ≤P gen，cli

[0080] Among them, S gen，t Indicates the start and stop status of the production equipment at time t, and is generally set to 0 or 1; P gen，out，t It is a generalized expression of the output of production equipment at time t, that is, the transfer amount of production resources; P gen，out，max and Pg en，out，min represents the maximum output power and minimum output power of the energy-generating equipment at time t; P gen，lan is the landslide limit of the equipment, which is a negative number; P gen，cli It is the climbing limit of the equipment, which is a positive number.

[0081] Based on the above formula, it can be seen that this application verifies the operating status information of the production capacity equipment, which is actually verified through the production capacity resource transfer amount of the production capacity equipment to determine whether the production capacity resource transfer amount exceeds the preset maximum output power threshold and minimum output power threshold. In addition, it determines whether the change in the production capacity resource transfer amount between two adjacent moments exceeds the preset landslide limit.

[0082] The second type is the operating state constraint of energy coupling equipment.

[0083] The devices that can realize the conversion of different forms of energy in the integrated energy microgrid are called energy coupling devices. For example, an electric refrigerator can convert electrical energy into cold energy, so the electric refrigerator is an energy coupling device. Specifically, the energy coupling devices of this application include waste heat boilers, electric boilers, absorption refrigerators and electric refrigerators. The main operating states of this type of equipment are the upper and lower limit constraints of input energy and the output efficiency constraint, as shown in the following formula: S tra，t P tra，in，min ≤P tra，in，t ≤S tra， t P tra，in，max , P tra，out，t =η traP tra，in，t , where S tra，t Indicates the on / off status of the energy coupling device at time t; P tra，out，t and P tra，in，t They represent the power output and power input of the energy coupling device at time t; P tra，in，max and P tra，in，min Respectively represent the maximum power input and minimum power input of the energy coupling device; η tra is the energy conversion efficiency.

[0084] In this application, the input thermal power of the waste heat boiler is the heat generated by the operation of the gas turbine, which is expressed as follows: , where P wh，in，t is the capacity resource transfer of the waste heat boiler, that is, the input thermal power of the waste heat boiler, is the heat energy loss rate of the gas turbine, P mt，t is the energy resource transfer of the micro gas turbine, that is, the output power of the gas turbine, η mt The efficiency of converting gas into electricity.

[0085] The third type is energy storage equipment operating status constraints.

[0086] A microgrid can charge and discharge energy storage devices on the microgrid side through multiple busbars. Therefore, the operating status of the energy storage devices is subject to the following constraints:

[0087] ,in, represents the remaining power of the microgrid-side energy storage device at time t, Indicates the remaining power of the microgrid-side energy storage device at time t+1, Indicates the remaining power of the microgrid-side energy storage device at time 0, represents the remaining power of the energy storage device on the microgrid side at time T; BU is the busbar set in the microgrid, is the charging / discharging power of the energy storage through the kth microgrid bus at time t, k soc，m1 and k soc，M1 Respectively represent the minimum and maximum SOC (State of Charge, battery remaining capacity) of the electric energy storage; E ES1 The installed capacity of electric energy storage; is the maximum charge / discharge power of the electric energy storage through the kth microgrid bus. The thermal energy storage and cold energy storage meet the following generalized operation constraints: ,in, represents the remaining energy of the microgrid hot / cold storage at time t, represents the remaining energy of the microgrid hot / cold storage at time t+1, The remaining energy of the microgrid heat / cold storage at time t, k represents the remaining energy of the microgrid hot / cold storage at time T; min and k max Represent the minimum and maximum coefficients of hot / cold energy storage respectively; E sto Installed capacity for heat / cold energy storage; is the maximum charging / discharging power of hot / cold energy storage, is the charging / discharging power of the hot / cold energy storage at time t.

[0088] The fourth type is the capacity constraint of the interconnection line.

[0089] When a microgrid purchases electricity from or sells electricity to the distribution network through a tie line, it must meet the upper limit of the tie line capacity. The specific constraints are as follows: ,in, and A 0-1 variable representing the state of micro-shopping electricity sales; is the maximum capacity of the tie line between the microgrid and the distribution network, is the power purchased by the microgrid from the distribution network at time t, is the power sold by the microgrid from the distribution network at time t. During periods of high wind and solar power generation, the distribution network cannot fully meet the microgrid's power purchase and sales needs due to safety requirements and will issue a power purchase and sales cap to the microgrid. Therefore, the tie line power should also meet the following constraints: ,in, is the power sold by the distribution network at time t, is the power purchased by the microgrid at time t, is the power sold by the microgrid at time t, is the power purchased by the distribution network at time t.

[0090] Fifth, renewable energy unit operating status constraints: ,in, represents the predicted maximum output of the rth renewable energy unit in the microgrid; The actual output of the rth renewable energy unit.

[0091] Sixth, microgrid resource balance constraints: including electric power, thermal power, and cooling power balance: ,in, is the power purchased by the microgrid from the distribution network, Si is the set of renewable energy units connected to the distribution network node i through the busbar; 、 and Represent electrical load, heating load and cooling load respectively; and Represent the input power of electric boiler and electric refrigerator respectively; 、 、 and Represent the output power of electric boiler, gas boiler, waste heat boiler and electric refrigerator respectively; and represent the output power of thermal energy storage and cold energy storage respectively; and Represent the input and output power of the absorption chiller respectively.

[0092] In the above embodiment, a comprehensive verification is performed on the power resources in the microgrid and the parameter information of each device to determine whether the microgrid is operating normally, so as to avoid a large error between the target power resource transfer amount and the target additional resource transfer amount obtained in the event of an abnormality in the microgrid, resulting in the inability to subsequently reliably control the operation of the energy microgrid group.

[0093] In an exemplary embodiment, the first virtual resource unit consumption is updated based on the target second virtual resource unit consumption, including: obtaining the second resource balance status information of the energy management center and the interaction status information between the energy management center and the energy microgrid group when the sum of the differences between the target power resource transfer-in amounts and the target power resource transfer-out amounts of all microgrids is minimized; verifying the second resource balance status information and the interaction status information, and updating the first virtual resource unit consumption based on the target second virtual resource unit consumption when the verification result indicates that the second resource balance status information and the interaction status information are normal.

[0094] Specifically, when the target power resource transfer amount and target additional resource transfer amount of all microgrids in the energy microgrid group are obtained, the energy management center can also be optimized. The optimization goal of the energy management center is to meet the power purchase and sales power demand of each integrated energy microgrid as much as possible, that is, the sum of the differences between the target power resource transfer-in amount and the target power resource transfer-out amount of all microgrids is minimized.

[0095] For example, if the amount of power resource transfer is electric power, the expression of its power demand for purchase and sale can be expressed as: , where M is the set of microgrids served by the energy management center, represents the power purchased by the energy management center from the i-th microgrid at time t, represents the power sold by the i-th microgrid to the EMC at time t. The EMC must meet the power purchase demand of each microgrid, but not necessarily the power sales demand of each microgrid. This unsatisfied power will be discarded, so the EMC's optimization goal is to minimize this power as much as possible.

[0096] When the sum of the differences between the target power resource transfer-in amounts and the target power resource transfer-out amounts of all microgrids is minimized, second resource balance status information of the energy management center and interaction status information between the energy management center and the energy microgrid group can be obtained, and the second resource balance status information and the interaction status information can be verified. If the verification result indicates that the second resource balance status information and the interaction status information are both normal, the first virtual resource unit consumption is updated.

[0097] In an exemplary embodiment, the second resource balance status information is the power balance status information of the energy management center. The method for verifying the power balance status information of the energy management center is as follows:

[0098] Considering the smoothing effect of energy storage equipment, under the management of the energy management center, the total power of all integrated energy microgrid users is balanced.

[0099]

[0100] in, represents the power purchased by the energy management system from the energy microgrid at time t, represents the electricity sold by the energy management system from the energy microgrid group at time t, represents the power purchased by the energy management system from the distribution network at time t, represents the electricity sold by the energy management system from the distribution network at time t, and Respectively, they represent the discharge power and charging power of the shared energy storage in the EMC's leased distribution network. In other words, by determining whether the EMC meets the above expressions, we can verify whether the EMC is in a power balance state.

[0101] In an exemplary embodiment, the method for verifying the interaction status information is as follows: the energy management center does not invest in energy storage equipment itself, but completes the power transfer between the mains system and the integrated energy microgrid group.

[0102]

[0103]

[0104] in, represents the power sold by the energy management center to the i-th microgrid at time t, represents the power purchased by the i-th microgrid from the energy management center at time t, represents the power purchased by the energy management center from the i-th microgrid at time t, represents the power sold by the i-th microgrid to the energy management center at time t, S MGrepresents the microgrid collection, Represents the power purchased by all microgrids at time t.

[0105] In the above embodiment, the first virtual resource unit consumption can be accurately updated by verifying whether the operating status of the energy management center is normal.

[0106] In a specific application embodiment, an energy microgrid operation control method is described as follows:

[0107] 1) Example Parameters: This study examines an energy supply system consisting of a distribution network, a campus-level energy management system, and two integrated energy microgrids. The distribution network is assumed to fully meet the power purchase and sales reported by the energy management system. The power limit for the power channel between the energy management system and the distribution network is 3.5 kW, and the power limit for the power channel between the two integrated energy microgrids and the energy management system is 3 kW. The energy storage controlled by the energy management system is as follows: installed capacity is 800 kWh; the initial surplus power in a dispatch cycle is 15% of the installed capacity, or 120 kWh; the maximum surplus power is 800 kWh, and the minimum surplus power is 80 kWh; the charge / discharge loss coefficient is 0.05; the energy storage charge and discharge loss is converted to 0.2 yuan / kWh, and a full charge and discharge can be achieved in one hour. The two integrated energy microgrids are a combined heat and power (CHP) microgrid and a combined cooling and power (CCP) microgrid. The CHP microgrid has a 6kW photovoltaic installed capacity and the controlled thermal energy storage information is as follows: installed capacity is 600kWh; the initial excess heat in a scheduling cycle is 30% of the installed capacity, or 180kWh; the maximum excess heat is 600kWh, and the minimum excess heat is 60kWh; the charging / discharging heat loss coefficient is 0.1, with the heat loss per hour being 0.02 of the excess heat energy; and full charging and discharging can be achieved in one hour. The maximum input power of the electric boiler is 1000W, with an electric-to-heat conversion coefficient of 0.95. The maximum input power of the gas turbine is 1000W, with a gas-to-heat conversion coefficient of 0.45 and a gas-to-electricity conversion coefficient of 0.35. The installed capacity of the combined cooling and power microgrid fan is 6 kW, and the controlled cold storage energy information is as follows: installed capacity is 500 kWh; the initial excess cooling capacity in a scheduling cycle is 15% of the installed capacity, or 75 kWh; the maximum excess cooling capacity is 500 kWh, and the minimum excess heat capacity is 50 kWh; the charging / discharging loss coefficient is 0.05, with the cooling loss per hour being 0.03 of the excess cooling energy; and full charging and discharging can be achieved in one hour. The maximum input power of the electric chiller is 1200 W, and its electricity-to-cooling conversion coefficient is 4.00. The calorific value of natural gas per cubic meter is equivalent to 9.33-9.88 kWh of electricity, taking 9.5 kWh as the value, and the price of natural gas per kWh of energy is 0.99 yuan. The price of a green certificate for electricity is 0.06 yuan / kWh, and the price of a green certificate for gas is 0.05 yuan / kWh. If there are two microgrids, the electricity purchase price of the two integrated energy microgrids depends on the day-ahead price released by the park-level energy management system. The price first released by the energy management system is the current time-of-use electricity price in a city in northern China, and the microgrid's electricity sales price is fixed.

[0108] 2) Initial Optimization Analysis of Integrated Energy Microgrids: After receiving their initial electricity purchase prices, the two microgrids optimized their internal controllable equipment, focusing on optimal economic performance. This resulted in initial electricity purchase / sales plans, which were then reported to the energy management system (EMS). This section analyzes the initial optimization plans for the two integrated energy microgrids. Taking the combined heat and power (CHP) microgrid (Microgrid 1) as an example, based on the internal power balance conditions, the microgrid purchases electricity from the distribution network during the hours of 0:00–10:00 and 18:00–24:00, due to the low photovoltaic output. During these hours, the microgrid purchases electricity from the distribution network. During the hours of 11:00–17:00, the photovoltaic output consistently exceeds the load demand. During this period, the microgrid no longer purchases electricity from the grid, but instead sells excess electricity for profit. During the peak electricity price period of 19:00–21:00, the gas turbine is activated to generate both heat and electricity, reducing the cost of obtaining energy from the EMS and achieving economical operation. Based on the thermal power balance conditions within Microgrid 2, during the off-peak electricity price period from 0:00 to 7:00, the electric boiler generates additional heat and stores it in the thermal energy storage while meeting the microgrid's thermal load. Energy is not added to the thermal energy storage from 0:00 to 3:00 to account for heat loss. From 14:00 to 17:00, energy is added to the thermal energy storage to cope with the subsequent peak electricity price period. The stored heat is fully released from the thermal energy storage between 19:00 and 21:00, and the initial residual heat is restored in the last hour of the scheduling cycle.

[0109] In an exemplary embodiment, there are multiple energy microgrids in an energy park, and the multiple energy microgrids constitute an energy microgrid cluster, such as Figure 3 As shown, the energy management center of the energy park communicates with the energy microgrid groups MG-1, MG-2, ..., MG-n through multiple energy management networks EMS-1, EMS-2, ..., EMS-n. Taking the virtual resource as cost and the power resource transfer amount as power as an example, the energy microgrid group operation control method of the present application will be described in detail below, including:

[0110] Step 1: Modeling and optimization of the lower-level integrated energy microgrid group: The day-ahead optimization scheduling problem of the integrated energy microgrid can be described as an optimization problem based on the load and wind and solar power output forecast values, with the goal of minimizing the total operating cost. It is assumed that the integrated energy microgrid has sufficient gas and diesel supply, and the microgrid only exchanges electrical energy with the outside world, that is, the distribution network. The energy management system can adjust controllable equipment such as diesel generators, gas turbines and energy storage according to the upper limit of electricity purchase and sales issued by the distribution network, and also includes the selection of the connection busbar of renewable energy units. The objective function of the day-ahead optimization scheduling of the integrated energy microgrid can be expressed as a quadratic function of the controllable unit, as follows:

[0111]

[0112] Among them, FMG represents the total operating cost of the microgrid, f DN represents the power interaction cost between the microgrid and the distribution network, f ES1 represents the cost of calling the energy storage on the microgrid side, f DI represents the operating cost of the diesel engine, f GAS represents the cost of gas usage, f LO Represents the power loss cost on the tie line. C t，buy and C t，sell Respectively represent the time-of-use electricity prices for purchasing and selling electricity at time t; C ES1 Indicates the call cost when charging / discharging 1 kWh of energy storage on the microgrid side; BU is the set of buses in the microgrid that are connected to the energy storage; represents the interaction power between the kth bus and the energy storage device, with energy storage discharge as positive and charging as negative, and there is a one-to-one correspondence between i and k; P DI，t represents the output of the microgrid diesel generator set at time t; a D I, b DI and c DI Respectively represent the corresponding cost coefficients of diesel generator sets; C ch is the unit price of natural gas; Q ch is the calorific value of natural gas; P mt，t is the output power of the micro gas turbine, η mt The efficiency of converting gas into electricity; H gb，t is the thermal power output of the microgrid gas boiler, η gb for its efficiency; is the square of the voltage value of node i at time t; R represents the equivalent resistance of the bus line and inverter on the microgrid side, represents the power purchased from the external line through the i-th grid-connected node at time t, It represents the power sold by the microgrid to the external line through the i-th grid-connected node at time t.

[0113] The corresponding constraints are: the operating status constraints of the power generation equipment in the microgrid, the operating status constraints of the energy coupling equipment, the operating status constraints of the energy storage equipment, the interconnection line capacity constraints, and the operating status constraints of the renewable energy unit of the renewable energy unit. They will not be repeated here.

[0114] Step 2: Modeling and optimization of the upper-level energy management center: The energy management center purchases carbon emission indicators from the carbon market, green electricity indicators from the green certificate market, and electric energy from the mains system, and as a non-profit organization, it formulates real-time electricity prices for users of the integrated energy microgrid in the park. The optimization goal of the upper-level energy management center is to meet the power purchase and sale demand of each integrated energy microgrid as much as possible, that is, when the sum of the differences between the target power resource transfer-in and the target power resource transfer-out of all microgrids is minimized, the corresponding constraints include the second resource balance state constraint of the energy management center and the interaction state constraint between the energy management center and the energy microgrid group. Furthermore, the present application obtains the target power resource transfer amount and the target additional resource transfer amount when the virtual resource consumption of the microgrid is minimized.

[0115] Obtain the second power resource transfer amount between the energy management center and the distribution network, and the second virtual resource unit consumption between the energy management center and the energy microgrid group, and obtain the sixth virtual resource consumption corresponding to the renewable resources of the energy management center and the seventh virtual resource consumption corresponding to the shared energy storage resources of the shared energy storage equipment between the energy management center and the distribution network; based on the target power resource transfer amount of all microgrids in the energy microgrid group, generate the second power resource transfer-in amount and the second power resource transfer-out amount between the energy management center and the energy microgrid group, and based on the second power resource transfer amount, obtain the third power resource transfer-in amount and the third power resource transfer-out amount between the energy management center and the distribution network. Amount; based on the second power resource transfer-out amount and the second virtual resource unit consumption, as well as the third power resource transfer-out amount and the first virtual resource unit consumption, a target virtual resource transfer-out amount is generated, and based on the second power resource transfer-in amount and the second virtual resource unit consumption, as well as the third power resource transfer-in amount and the first virtual resource unit consumption, a virtual resource transfer-in amount is generated; based on the target additional resource transfer amount, a carbon emission resource transfer amount of the energy management center is generated, and based on the carbon emission resource transfer amount, an eighth virtual resource consumption is generated; based on the sixth virtual resource consumption, the seventh virtual resource consumption, the virtual resource transfer-in amount and the eighth virtual resource consumption, a target virtual resource transfer-in amount is generated.

[0116] When the target virtual resource transfer-in amount and the target virtual resource transfer-out amount are balanced, the target second virtual resource unit consumption is obtained, and based on the target second virtual resource unit consumption, the first virtual resource unit consumption is updated, and the updated first virtual resource unit consumption needs to satisfy that the difference between the updated first virtual resource unit consumption and the unupdated first virtual resource unit consumption does not exceed a preset range; return to the microgrid data acquisition step until the difference between the first virtual resource unit consumption in the current cycle process and the previous cycle process is lower than the preset threshold, and obtain the target first virtual resource unit consumption and the target microgrid virtual resource consumption for controlling the reliable operation of the energy microgrid group.

[0117] It should be understood that, although the steps in the flowcharts of the above embodiments are shown in sequence as indicated by the arrows, these steps are not necessarily performed in the order indicated by the arrows. Unless otherwise specified herein, there is no strict order restriction on the execution of these steps, and these steps can be performed in other orders. Moreover, at least a portion of the steps in the flowcharts of the above embodiments may include multiple steps or multiple stages, and these steps or stages are not necessarily performed at the same time, but can be performed at different times. The execution order of these steps or stages is not necessarily to be performed in sequence, but can be performed in turn or alternately with other steps or at least a portion of steps or stages in other steps.

[0118] Based on the same inventive concept, embodiments of the present application also provide an energy microgrid operation control device for implementing the aforementioned energy microgrid operation control method. The solution provided by this device is similar to the solution described in the aforementioned method. Therefore, the specific limitations of one or more embodiments of the energy microgrid operation control device provided below can be found in the above-mentioned limitations of the energy microgrid operation control method and will not be further elaborated here.

[0119] In an exemplary embodiment, Figure 4 As shown, an energy microgrid group operation control device is provided, comprising: a microgrid data acquisition module 100, a microgrid virtual resource consumption generation module 200, a microgrid virtual resource consumption optimization module 300, an energy management center optimization module 400, a first virtual resource unit consumption update module 500 and an energy microgrid group operation control module 600, wherein:

[0120] The microgrid data acquisition module 100 is used for the microgrid data acquisition step: for each microgrid in the energy microgrid group, obtaining the first power resource transfer amount of the microgrid when the microgrid is connected to the distribution network, and the first virtual resource unit consumption corresponding to the first power resource transfer amount.

[0121] The microgrid virtual resource consumption generating module 200 is configured to generate the microgrid virtual resource consumption during microgrid operation based on the first power resource transfer amount and the first virtual resource unit consumption amount.

[0122] The microgrid virtual resource consumption optimization module 300 is configured to obtain a target power resource transfer amount when the microgrid virtual resource consumption is minimized.

[0123] The energy management center optimization module 400 is used to obtain the second power resource transfer amount between the energy management center and the distribution network, and the second virtual resource unit consumption between the energy management center and the energy microgrid group, and generate the target virtual resource transfer-in amount and target virtual resource transfer-out amount of the energy management center based on the target power resource transfer amount, the first virtual resource unit consumption, the second power resource transfer amount and the second virtual resource unit consumption of all microgrids in the energy microgrid group, wherein the energy management center is the intermediary for the energy microgrid group to access the distribution network.

[0124] The first virtual resource unit consumption updating module 500 is configured to obtain a target second virtual resource unit consumption when a target virtual resource transfer-in amount and a target virtual resource transfer-out amount are balanced, and update the first virtual resource unit consumption based on the target second virtual resource unit consumption.

[0125] The energy microgrid cluster operation control module 600 is used to return to the microgrid data acquisition step until the difference between the first virtual resource unit consumption in the current cycle process and the first virtual resource unit consumption in the previous cycle process is lower than a preset threshold, obtain the target first virtual resource unit consumption and the target microgrid virtual resource consumption, and control the operation of the energy microgrid cluster based on the target first virtual resource unit consumption and the target microgrid virtual resource consumption.

[0126] In one embodiment, the first power resource transfer amount includes a first power input resource amount and a first power output resource amount, and the first virtual resource unit consumption corresponding to the first power resource transfer amount includes an input virtual resource unit consumption corresponding to the first power input resource amount and an output virtual resource unit consumption corresponding to the first power output resource amount. The microgrid virtual resource consumption generation module 200 is also used to generate an input virtual resource consumption between the microgrid and the distribution network based on the first power input resource amount and the input virtual resource unit consumption; generate an output virtual resource consumption between the microgrid and the distribution network based on the first power output resource amount and the output virtual resource unit consumption; and generate a microgrid virtual resource consumption when the microgrid is running according to the input virtual resource consumption and the output virtual resource consumption.

[0127] In one embodiment, the microgrid virtual resource consumption generation module 200 is also used to generate a first virtual resource consumption based on the first power resource transfer amount and the first virtual resource unit consumption; obtain an additional resource transfer amount, and generate a second virtual resource consumption based on the additional resource transfer amount; and generate a microgrid virtual resource consumption when the microgrid is running based on the first virtual resource consumption and the second virtual resource consumption.

[0128] In one embodiment, the additional resource transfer amount includes the capacity resource transfer amount of the capacity equipment, the energy storage call resource transfer amount of the energy storage equipment, and the communication resource transfer amount of the communication line between the microgrid and the distribution network; the microgrid virtual resource consumption generation module 200 is also used to obtain the third virtual resource unit consumption corresponding to the capacity resource of the capacity equipment and the fourth virtual resource unit consumption corresponding to the energy storage call resource of the energy storage equipment; based on the third virtual resource unit consumption and the capacity resource transfer amount, a third virtual resource consumption is generated; based on the fourth virtual resource unit consumption and the energy storage call resource transfer amount, a fourth virtual resource consumption is generated; based on the communication resource transfer amount, the power transfer-in resource amount, the transfer-in virtual resource unit consumption, the power transfer-out resource amount and the transfer-out virtual resource unit consumption, a fifth virtual resource consumption is generated; based on the third virtual resource consumption, the fourth virtual resource consumption and the fifth virtual resource consumption, a second virtual resource consumption is generated.

[0129] In one embodiment, the energy management center optimization module 400 is further used to obtain the sixth virtual resource consumption corresponding to the renewable resources of the energy management center and the seventh virtual resource consumption corresponding to the shared energy storage resources of the shared energy storage device between the energy management center and the distribution network; based on the target power resource transfer amount of all microgrids in the energy microgrid group, generate the second power resource transfer-in amount and the second power resource transfer-out amount between the energy management center and the energy microgrid group, and based on the second power resource transfer amount, obtain the third power resource transfer-in amount and the third power resource transfer-out amount between the energy management center and the distribution network; based on the second power resource transfer amount and the second virtual resource unit consumption, and the third The target virtual resource transfer-out amount is generated based on the power resource transfer-out amount and the first virtual resource unit consumption, and the virtual resource transfer-in amount is generated based on the second power resource transfer-in amount and the second virtual resource unit consumption, as well as the third power resource transfer-in amount and the first virtual resource unit consumption; when the microgrid virtual resource consumption is minimized, the target additional resource transfer amount is obtained; based on the target additional resource transfer amount, the carbon emission resource transfer amount of the energy management center is generated, and based on the carbon emission resource transfer amount, the eighth virtual resource consumption is generated; based on the sixth virtual resource consumption, the seventh virtual resource consumption, the virtual resource transfer-in amount and the eighth virtual resource consumption, the target virtual resource transfer-in amount is generated.

[0130] In one embodiment, the microgrid virtual resource consumption optimization module 300 is further configured to obtain power generation equipment operating status information of power generation equipment, energy coupling equipment operating status information of energy coupling equipment, energy storage equipment operating status information of energy storage equipment, tie line capacity information of tie lines, renewable energy unit operating status information of renewable energy units, and first resource balance status information of the microgrid; verify the power generation equipment operating status information, energy coupling equipment operating status information, energy storage equipment operating status information, tie line capacity information, renewable energy unit operating status information, and first resource balance status information; and obtain a target power resource transfer amount when the verification result indicates that the power generation equipment operating status information, energy coupling equipment operating status information, energy storage equipment operating status information, tie line capacity information, renewable energy unit operating status information, and first resource balance status information are all normal.

[0131] In one embodiment, the first virtual resource unit consumption update module 500 is also used to obtain the second resource balance status information of the energy management center and the interaction status information between the energy management center and the energy microgrid group when the sum of the differences between the target power resource transfer-in and the target power resource transfer-out of all microgrids is minimized; verify the second resource balance status information and the interaction status information, and update the first virtual resource unit consumption based on the target second virtual resource unit consumption when the verification result indicates that the second resource balance status information and the interaction status information are normal.

[0132] Each module in the aforementioned energy microgrid cluster operation control device may be implemented in whole or in part through software, hardware, or a combination thereof. Each module may be embedded in or independent of a processor within a computer device in hardware form, or may be stored in a computer device memory in software form, allowing the processor to call and execute the corresponding operations of each module.

[0133] In an exemplary embodiment, a computer device is provided. The computer device may be a server, and its internal structure diagram may be as shown in FIG. Figure 5As shown. The computer device includes a processor, a memory, an input / output interface (I / O), and a communication interface. The processor, memory, and I / O interface are connected via a system bus, and the communication interface is connected to the system bus via the I / O interface. The processor of the computer device is used to provide computing and control capabilities. The memory of the computer device includes a non-volatile storage medium and an internal memory. The non-volatile storage medium stores an operating system, a computer program, and a database. The internal memory provides an operating environment for the operating system and computer program in the non-volatile storage medium. The database of the computer device is used to store data such as the first power resource transfer amount of the microgrid when the microgrid is connected to the distribution network, and the first virtual resource unit consumption corresponding to the first power resource transfer amount. The I / O interface of the computer device is used to exchange information between the processor and an external device. The communication interface of the computer device is used to communicate with an external terminal via a network connection. When the computer program is executed by the processor, it implements a method for controlling the operation of an energy microgrid group.

[0134] Those skilled in the art will understand that Figure 5 The structure shown in the figure is a block diagram of a partial structure related to the solution of the present application, and does not constitute a limitation on the computer device to which the solution of the present application is applied. The specific computer device may include more or fewer components than shown in the figure, or combine certain components, or have a different component arrangement.

[0135] In one embodiment, a computer device is further provided, including a memory and a processor. The memory stores a computer program, and the processor implements the steps in the above method embodiments when executing the computer program.

[0136] In one embodiment, a computer-readable storage medium is provided, on which a computer program is stored. When the computer program is executed by a processor, the steps in the above-mentioned method embodiments are implemented.

[0137] In one embodiment, a computer program product is provided, including a computer program, which implements the steps in the above method embodiments when executed by a processor.

[0138] Those skilled in the art will understand that all or part of the processes in the above-mentioned embodiments can be implemented by instructing the relevant hardware through a computer program. The computer program can be stored in a non-volatile computer-readable storage medium. When the computer program is executed, it can include the processes of the embodiments of the above-mentioned methods. Among them, any reference to memory, database or other media used in the embodiments provided in this application can include at least one of non-volatile memory and volatile memory. Non-volatile memory can include read-only memory (ROM), magnetic tape, floppy disk, flash memory, optical memory, high-density embedded non-volatile memory, resistive random access memory (ReRAM), magnetic random access memory (MRAM), ferroelectric random access memory (FRAM), phase change memory (PCM), graphene memory, etc. Volatile memory can include random access memory (RAM) or external cache memory, etc. By way of illustration and not limitation, RAM can take various forms, such as static random access memory (SRAM) or dynamic random access memory (DRAM). The databases involved in the various embodiments provided herein may include at least one of a relational database and a non-relational database. Non-relational databases may include, but are not limited to, blockchain-based distributed databases. The processors involved in the various embodiments provided herein may be, but are not limited to, general-purpose processors, central processing units (CPUs), graphics processing units (GPUs), digital signal processors (DSPs), programmable logic devices (PLDs), quantum computing-based data processing logic devices, artificial intelligence (AI) processors, and the like.

[0139] The technical features of the above embodiments can be combined arbitrarily. In order to make the description concise, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this application.

[0140] The above embodiments merely illustrate several implementation methods of the present application. While the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the present invention. It should be noted that a person skilled in the art may make various modifications and improvements without departing from the spirit of the present invention, all of which fall within the scope of protection of the present application. Therefore, the scope of protection of the present application shall be determined by the appended claims.

Claims

1. A method for controlling the operation of an energy microgrid group, characterized in that: The method comprises: Microgrid data acquisition step: for each microgrid in the energy microgrid group, acquiring a first power resource transfer amount of the microgrid when the microgrid is connected to the power distribution network, and a first virtual resource unit consumption corresponding to the first power resource transfer amount; generating a microgrid virtual resource consumption amount when the microgrid is in operation based on the first power resource transfer amount and the first virtual resource unit consumption amount; When the virtual resource consumption of the microgrid is minimized, obtaining a target power resource transfer amount; Obtaining a second electric power resource transfer amount between an energy management center and the distribution network, and a second virtual resource unit consumption amount between the energy management center and the energy microgrid group, and generating a target virtual resource transfer-in amount and a target virtual resource transfer-out amount of the energy management center based on the target electric power resource transfer amount of all microgrids in the energy microgrid group, the first virtual resource unit consumption amount, the second electric power resource transfer amount, and the second virtual resource unit consumption amount, wherein the energy management center is an intermediary for the energy microgrid group to access the distribution network; When the target virtual resource transfer-in amount and the target virtual resource transfer-out amount are balanced, obtaining a target second virtual resource unit consumption, and updating the first virtual resource unit consumption based on the target second virtual resource unit consumption; Return to the microgrid data acquisition step until the difference between the first virtual resource unit consumption in the current cycle process and the first virtual resource unit consumption in the previous cycle process is lower than a preset threshold, obtain the target first virtual resource unit consumption and the target microgrid virtual resource consumption, and control the operation of the energy microgrid group based on the target first virtual resource unit consumption and the target microgrid virtual resource consumption.

2. The method according to claim 1, characterized in that The first power resource transfer amount includes a first power transfer-in resource amount and a first power transfer-out resource amount, the first virtual resource unit consumption corresponding to the first power resource transfer amount includes an input virtual resource unit consumption corresponding to the first power transfer-in resource amount and an output virtual resource unit consumption corresponding to the first power transfer-out resource amount, and generating the microgrid virtual resource consumption when the microgrid is running based on the first power resource transfer amount and the first virtual resource unit consumption includes: generating an incoming virtual resource consumption between the microgrid and the distribution network based on the first electric power incoming resource amount and the incoming virtual resource unit consumption; generating a transfer virtual resource consumption between the microgrid and the distribution network based on the first power transfer resource amount and the transfer virtual resource unit consumption; The microgrid virtual resource consumption during microgrid operation is generated according to the input virtual resource consumption and the output virtual resource consumption.

3. The method according to claim 2, characterized in that The generating, based on the incoming virtual resource consumption and the outgoing virtual resource consumption, the microgrid virtual resource consumption during operation of the microgrid includes: generating a first virtual resource consumption amount based on the first power resource transfer amount and the first virtual resource unit consumption amount; Acquire an additional resource transfer amount, and generate a second virtual resource consumption amount based on the additional resource transfer amount; The microgrid virtual resource consumption during operation of the microgrid is generated according to the first virtual resource consumption and the second virtual resource consumption.

4. The method according to claim 3, characterized in that The additional resource transfer amount includes the capacity resource transfer amount of the capacity equipment, the energy storage call resource transfer amount of the energy storage equipment, and the connection resource transfer amount of the connection line between the microgrid and the distribution network; Generating a second virtual resource consumption amount based on the additional resource transfer amount includes: Obtaining a third virtual resource unit consumption corresponding to the production capacity resource of the production capacity device and a fourth virtual resource unit consumption corresponding to the energy storage call resource of the energy storage device; generating a third virtual resource consumption amount based on the third virtual resource unit consumption amount and the production capacity resource transfer amount; generating a fourth virtual resource consumption based on the fourth virtual resource unit consumption and the energy storage call resource transfer amount; generating a fifth virtual resource consumption based on the contact resource transfer amount, the power transfer-in resource amount, the transfer-in virtual resource unit consumption, the power transfer-out resource amount, and the transfer-out virtual resource unit consumption; A second virtual resource consumption is generated according to the third virtual resource consumption, the fourth virtual resource consumption, and the fifth virtual resource consumption.

5. The method according to claim 3, characterized in that The generating of the target virtual resource transfer-in amount and the target virtual resource transfer-out amount of the energy management center based on the target power resource transfer amount of all microgrids in the energy microgrid group, the first virtual resource unit consumption amount, the second power resource transfer amount, and the second virtual resource unit consumption amount includes: Obtaining a sixth virtual resource consumption corresponding to the renewable resources of the energy management center and a seventh virtual resource consumption corresponding to the shared energy storage resources of the shared energy storage device between the energy management center and the distribution network; generating a second power resource transfer-in amount and a second power resource transfer-out amount between an energy management center and the energy microgrid group based on target power resource transfer amounts of all microgrids in the energy microgrid group, and obtaining a third power resource transfer-in amount and a third power resource transfer-out amount between the energy management center and the distribution network based on the second power resource transfer amount; generating a target virtual resource transfer-out amount based on the second power resource transfer-out amount and the second virtual resource unit consumption, and the third power resource transfer-out amount and the first virtual resource unit consumption, and generating a virtual resource transfer-in amount based on the second power resource transfer-in amount and the second virtual resource unit consumption, and the third power resource transfer-in amount and the first virtual resource unit consumption; When the virtual resource consumption of the microgrid is minimized, obtaining a target additional resource transfer amount; generating a carbon emission resource transfer amount of the energy management center based on the target additional resource transfer amount, and generating an eighth virtual resource consumption amount based on the carbon emission resource transfer amount; A target virtual resource transfer-in amount is generated based on the sixth virtual resource consumption amount, the seventh virtual resource consumption amount, the virtual resource transfer-in amount, and the eighth virtual resource consumption amount.

6. The method according to claim 1, characterized in that The obtaining of the target power resource transfer amount includes: Obtaining power generation equipment operating status information of power generation equipment in the microgrid, energy coupling equipment operating status information of energy coupling equipment, energy storage equipment operating status information of energy storage equipment, tie line capacity information of tie lines, renewable energy unit operating status information of renewable energy units, and first resource balance status information of the microgrid; Verifying the energy production equipment operating status information, the energy coupling equipment operating status information, the energy storage equipment operating status information, the tie line capacity information, the renewable energy unit operating status information, and the first resource balance status information; When the verification result indicates that the operating status information of the power generation equipment, the operating status information of the energy coupling equipment, the operating status information of the energy storage equipment, the interconnection line capacity information, the operating status information of the renewable energy unit, and the first resource balance status information are all normal, the target power resource transfer amount is obtained.

7. The method according to claim 1, characterized in that The target power resource transfer amount includes a target power resource transfer-in amount and a target power resource transfer-out amount. Updating the first virtual resource unit consumption based on the target second virtual resource unit consumption includes: When the sum of the differences between the target power resource transfer-in amount and the target power resource transfer-out amount of all microgrids is minimized, obtaining the second resource balance state information of the energy management center and the interaction state information between the energy management center and the energy microgrid group; The second resource balance state information and the interaction state information are verified, and when the verification result indicates that the second resource balance state information and the interaction state information are normal, the first virtual resource unit consumption is updated based on the target second virtual resource unit consumption.

8. An energy microgrid group operation control device, characterized in that: The device comprises: A microgrid data acquisition module is used for the microgrid data acquisition step: for each microgrid in the energy microgrid group, obtaining a first power resource transfer amount of the microgrid when the microgrid is connected to the power distribution network, and a first virtual resource unit consumption corresponding to the first power resource transfer amount; a microgrid virtual resource consumption generating module, configured to generate a microgrid virtual resource consumption amount when the microgrid is in operation based on the first power resource transfer amount and the first virtual resource unit consumption amount; a microgrid virtual resource consumption optimization module, configured to obtain a target power resource transfer amount when the microgrid virtual resource consumption is minimized; an energy management center optimization module, configured to obtain a second electric power resource transfer amount between the energy management center and the distribution network, and a second virtual resource unit consumption amount between the energy management center and the energy microgrid cluster, and generate a target virtual resource transfer-in amount and a target virtual resource transfer-out amount of the energy management center based on the target electric power resource transfer amount, the first virtual resource unit consumption amount, the second electric power resource transfer amount, and the second virtual resource unit consumption amount of all microgrids in the energy microgrid cluster, wherein the energy management center is an intermediary for the energy microgrid cluster to access the distribution network; a first virtual resource unit consumption updating module configured to obtain a target second virtual resource unit consumption when the target virtual resource transfer-in amount and the target virtual resource transfer-out amount are balanced, and to update the first virtual resource unit consumption based on the target second virtual resource unit consumption; The energy microgrid cluster operation control module is used to return to the microgrid data acquisition step until the difference between the first virtual resource unit consumption in the current cycle process and the first virtual resource unit consumption in the previous cycle process is lower than a preset threshold value, obtain the target first virtual resource unit consumption and the target microgrid virtual resource consumption, and control the operation of the energy microgrid cluster based on the target first virtual resource unit consumption and the target microgrid virtual resource consumption.

9. A computer device comprising a memory and a processor, wherein the memory stores a computer program, wherein: When the processor executes the computer program, the steps of the method according to any one of claims 1 to 7 are implemented.

10. A computer-readable storage medium having a computer program stored thereon, characterized in that: When the computer program is executed by a processor, the steps of the method according to any one of claims 1 to 7 are implemented.

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