New energy plant station power regulation method and device, computer equipment and computer readable storage medium

Abstract

The invention relates to a new energy plant station power regulation method and device, computer equipment and a computer readable storage medium, and relates to the technical field of electric power. The method comprises the following steps of: calculating the power consumption of the new energy plant station based on plant station target output power carried by an automatic power generation control instruction for the new energy plant station, a new energy total output power upper limit of a new energy controller in the new energy plant station, an energy storage total power upper limit of an energy storage controller in the new energy plant station and current plant station power loss of the new energy plant station; determining a target new energy operation state of the new energy plant station and a corresponding new energy control instruction of the new energy controller in the target new energy operation state, and determining a target energy storage operation state of the new energy plant station and a corresponding energy storage control instruction of the energy storage controller in the target energy storage operation state; and the new energy control instruction is issued to the new energy controller, and the energy storage control instruction is issued to the energy storage controller. By adopting the method, the output stability of the new energy plant station can be improved.

Description

Technical Field

[0001] The present application relates to the field of electric power technology, and in particular to a new energy plant power regulation method, device, computer equipment, computer-readable storage medium and computer program product. Background Art

[0002] With the large-scale grid connection of new energy power generation such as wind power generation and photovoltaic power generation, the randomness and volatility of power generation and load in power plants have also increased, resulting in lower output stability of new energy power plants. Summary of the invention

[0003] Based on this, it is necessary to provide a new energy plant power regulation method, device, computer equipment and computer-readable storage medium that can improve the output stability of the new energy plant to address the technical problem of low output stability of the above-mentioned new energy plant.

[0004] In a first aspect, the present application provides a new energy plant power regulation method, comprising:

[0005] Obtaining an automatic power generation control instruction for a new energy plant; the automatic power generation control instruction carries the plant target output power of the new energy plant;

[0006] Based on the target output power of the plant, the upper limit of the total output power of the new energy controller in the new energy plant, the upper limit of the total energy storage power of the energy storage controller in the new energy plant, and the current plant power loss of the new energy plant, determine the target new energy operation state of the new energy plant and the corresponding new energy control instruction of the new energy controller under the target new energy operation state, and determine the target energy storage operation state of the new energy plant and the corresponding energy storage control instruction of the energy storage controller under the target energy storage operation state;

[0007] The new energy control instruction is sent to the new energy controller, and the energy storage control instruction is sent to the energy storage controller; the new energy controller adjusts the new energy output power of the corresponding new energy output unit in response to the received new energy control instruction, and the energy storage controller adjusts the energy storage power of the corresponding energy storage unit in response to the received energy storage control instruction.

[0008] In a second aspect, the present application also provides a new energy plant power regulation device, comprising:

[0009] An instruction acquisition module is used to acquire an automatic power generation control instruction for a new energy plant; the automatic power generation control instruction carries the plant target output power of the new energy plant;

[0010] An instruction generation module is used to determine the target new energy operation state of the new energy plant and the corresponding new energy control instruction of the new energy controller under the target new energy operation state, and determine the target energy storage operation state of the new energy plant and the corresponding energy storage control instruction of the energy storage controller under the target energy storage operation state based on the target output power of the plant, the upper limit of the total new energy output power of the new energy controller in the new energy plant, the upper limit of the total energy storage power of the energy storage controller in the new energy plant, and the current plant power loss of the new energy plant;

[0011] An instruction issuing module is used to issue the new energy control instruction to the new energy controller and the energy storage control instruction to the energy storage controller; the new energy controller adjusts the new energy output power of the corresponding new energy output unit in response to the received new energy control instruction, and the energy storage controller adjusts the energy storage power of the corresponding energy storage unit in response to the received energy storage control instruction.

[0012] In a third aspect, the present application further provides a computer device, including a memory and a processor, wherein the memory stores a computer program, and the processor implements each step in a new energy plant power regulation method when executing the computer program.

[0013] In a fourth aspect, the present application further provides a computer-readable storage medium having a computer program stored thereon, and when the computer program is executed by a processor, the computer program implements each step in a new energy plant power regulation method.

[0014] The above-mentioned new energy plant power adjustment method, device, computer equipment and computer-readable storage medium first obtain an automatic power generation control instruction for the new energy plant; the automatic power generation control instruction carries the plant target output power of the new energy plant; then, based on the plant target output power, the upper limit of the total new energy output power of the new energy controller in the new energy plant, the upper limit of the total energy storage power of the energy storage controller in the new energy plant and the current plant power loss of the new energy plant, determine the target new energy operation state of the new energy plant and the corresponding new energy control instruction of the new energy controller under the target new energy operation state, determine the target energy storage operation state of the new energy plant and the corresponding energy storage control instruction of the energy storage controller under the target energy storage operation state; finally, send the new energy control instruction to the new energy controller, and send the energy storage control instruction to the energy storage controller; the new energy controller adjusts the corresponding new energy output power in response to the received new energy control instruction, and the energy storage controller adjusts the corresponding energy storage power in response to the received energy storage control instruction. In this way, through the target output power of the plant carried by the automatic power generation control instruction, the upper limit of the total output power of the new energy controller in the new energy plant, the upper limit of the total energy storage power of the energy storage controller in the new energy plant and the current power loss of the new energy plant, the target new energy operation state of the new energy plant and the corresponding new energy control instruction of the new energy controller under the target new energy operation state, as well as the target energy storage operation state of the new energy plant and the corresponding energy storage control instruction of the energy storage controller under the target energy storage operation state can be obtained. By sending the new energy control instruction to the new energy controller and sending the energy storage control instruction to the energy storage controller, the new energy controller can adjust the new energy output power of the corresponding new energy unit, and the energy storage controller can adjust the energy storage power of the corresponding energy storage unit. The new energy plant power adjustment method based on the above process can adjust the new energy output power of the new energy unit through the new energy controller and adjust the energy storage power of the energy storage unit through the energy storage controller through the issuance of instructions, thereby maintaining the stable output of the new energy plant and improving the output stability of the new energy plant. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the technical solutions in the embodiments of the present application or related technologies, the drawings required for use in the embodiments of the present application or related technical descriptions will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without paying creative work.

[0016] Figure 1 This is an application environment diagram of a new energy plant power regulation method in an embodiment;

[0017] Figure 2A schematic diagram of a flow chart of a power regulation method for a new energy plant in one embodiment;

[0018] Figure 3 A flowchart of steps for determining a target new energy operation state of a new energy plant and a new energy control instruction corresponding to a new energy controller under the target new energy operation state, and determining a target energy storage operation state of the new energy plant and a corresponding energy storage control instruction of an energy storage controller under the target energy storage operation state in one embodiment;

[0019] Figure 4 A flowchart of steps for determining a target new energy operation state of a new energy plant and a new energy control instruction corresponding to the new energy controller under the target new energy operation state, and determining a target energy storage operation state of the new energy plant and a corresponding energy storage control instruction of the energy storage controller under the target energy storage operation state in another embodiment;

[0020] Figure 5 A flowchart of steps for determining a target new energy operation state of a new energy plant and a new energy control instruction corresponding to the new energy controller under the target new energy operation state, and determining a target energy storage operation state of the new energy plant and a corresponding energy storage control instruction of the energy storage controller under the target energy storage operation state in another embodiment;

[0021] Figure 6 A flowchart of the steps of sending a new energy control instruction to a new energy controller in one embodiment;

[0022] Figure 7 A flowchart of the steps of determining the adjustable power information of each new energy controller in one embodiment;

[0023] Figure 8 A schematic flow chart of the steps of determining the current plant output power of a new energy plant in one embodiment;

[0024] Fig. 9 It is a structural block diagram of a power regulating device for a new energy plant in one embodiment;

[0025] Fig.10 FIG. 4 is a diagram showing the internal structure of a computer device in one embodiment. DETAILED DESCRIPTION

[0026] In order to make the purpose, technical solution and advantages of the present application more clearly understood, the present application is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application.

[0027] It should be noted that the user information (including but not limited to user device information, user personal information, etc.) and data (including but not limited to data used for analysis, stored data, displayed data, etc.) involved in this application are all information and data authorized by the user or fully authorized by all parties, and the collection, use and processing of relevant data must comply with relevant regulations.

[0028] The power regulation method for a new energy plant provided in the embodiment of the present application can be applied to Figure 1 In the application environment shown. The application environment includes a dispatch center 102, a coordination controller 104, and each new energy controller 106 and each energy storage controller 108 in a new energy plant. Among them, the dispatch center 102, the coordination controller 104, the new energy controller 106 and the energy storage controller 108 communicate through a network. The dispatch center 102 and the coordination controller 104 can be implemented by a server or a terminal or a system including a server and a terminal. The server can be an independent physical server, a server cluster or a distributed system composed of multiple physical servers, or a cloud server that provides cloud computing services.

[0029] Specifically, the dispatching personnel sends an automatic power generation control instruction to the coordination controller 104 through the dispatching center 102; the coordination controller 104 first obtains the automatic power generation control instruction for the new energy plant; the automatic power generation control instruction carries the plant target output power of the new energy plant; then, the coordination controller 104 determines the target new energy operation state and new energy control state of the new energy plant based on the plant target output power, the new energy total output power upper limit of the new energy controller 106 in the new energy plant, the total energy storage power upper limit of the energy storage controller 108 in the new energy plant and the current plant power loss of the new energy plant. The controller 106 receives the corresponding new energy control instruction under the target new energy operation state, determines the target energy storage operation state of the new energy plant and the corresponding energy storage control instruction under the target energy storage operation state of the energy storage controller 108; finally, the coordination controller 104 sends the new energy control instruction to the new energy controller 106, and sends the energy storage control instruction to the energy storage controller 108; the new energy controller 106 adjusts the new energy output power of the corresponding new energy output unit in response to the received new energy control instruction, and the energy storage controller 108 adjusts the energy storage power of the corresponding energy storage unit in response to the received energy storage control instruction.

[0030] In an exemplary embodiment, Figure 2 As shown, a new energy plant power regulation method is provided, which is applied to Figure 1 The coordination controller in is taken as an example to illustrate, including the following steps S202 to S206:

[0031] Step S202, obtaining automatic power generation control instructions for the new energy plant.

[0032] Among them, the automatic generation control instruction refers to the AGC (Automatic Generation Control) instruction, which carries the target output power of the new energy plant.

[0033] Among them, the target power output of the power plant is used to represent the expected power output of the power plant, and the power output of the power plant refers to the total power output of the new energy power plant to the outside. In practical applications, the power of the grid connection point of the new energy power plant is the power output of the new energy power plant.

[0034] Among them, the new energy plant includes at least one new energy controller and at least one energy storage controller; further, the new energy plant also includes at least one new energy unit and at least one energy storage unit, each new energy controller is used to control the output of at least one new energy unit, and each energy storage controller is used to control the energy storage of at least one energy storage unit.

[0035] Among them, the new energy unit includes at least one of a photovoltaic unit, a wind unit and a hydropower unit; the new energy controller includes at least one of a photovoltaic controller corresponding to the photovoltaic unit, a wind controller corresponding to the wind unit and a hydropower controller corresponding to the hydropower unit.

[0036] Specifically, the coordination controller obtains the AGC instruction for the new energy plant and performs the power adjustment of the new energy plant provided in this application in the following two situations:

[0037] In the first case, when the coordination controller receives the AGC instruction newly issued by the dispatching center, the coordination controller obtains the AGC instruction newly issued by the dispatching center.

[0038] In the second case, the coordination controller monitors the current plant output power of the new energy plant in real time during the execution of the current AGC instruction. When it is monitored that the current plant output power of the new energy plant is offset from the current plant target output power (the plant target output power carried by the current AGC instruction), and the offset between the current plant output power and the current plant target output power is greater than the set dead zone value, the coordination controller re-acquires the current AGC instruction.

[0039] For example, the power output of the plant is , the target output power of the plant is , remember the dead zone value is , the coordinated controller reacquires the current AGC instruction as shown in Formula 1:

[0040] (Formula 1)

[0041] Step S204, based on the target output power of the new energy plant, the upper limit of the total output power of the new energy controller in the new energy plant, the upper limit of the total energy storage power of the energy storage controller in the new energy plant and the current power loss of the new energy plant, determine the target new energy operation state of the new energy plant and the corresponding new energy control instructions of the new energy controller under the target new energy operation state, and determine the target energy storage operation state of the new energy plant and the corresponding energy storage control instructions of the energy storage controller under the target energy storage operation state.

[0042] Among them, the upper limit of the total output power of new energy is used to characterize the upper limit of the new energy output capacity of the new energy plant; in specific applications, each new energy controller in the new energy plant has a corresponding new energy output power upper limit, and the new energy output power upper limit corresponding to each new energy controller is the new energy output power upper limit of the new energy unit corresponding to the new energy controller, which is used to characterize the upper limit of the new energy output capacity of the new energy unit corresponding to the new energy controller; in actual applications, the upper limit of the total output power of new energy is the sum of the upper limits of the new energy output power corresponding to each new energy controller in the new energy plant.

[0043] Among them, the total energy storage power upper limit is used to characterize the upper limit of the energy storage capacity of the new energy plant; in specific applications, each energy storage controller in the new energy plant has a corresponding energy storage power upper limit, and the energy storage power upper limit corresponding to each energy storage controller is the energy storage power upper limit of the energy storage unit corresponding to the energy storage controller, which is used to characterize the upper limit of the energy storage capacity of the energy storage unit corresponding to the energy storage controller; in actual applications, the total energy storage power upper limit is the sum of the energy storage output power upper limits corresponding to each energy storage controller in the new energy plant.

[0044] Among them, the plant power loss is used to characterize the loss between the total output power inside the new energy plant and the total output power outside the new energy plant; in specific applications, the plant power loss is the difference between the total output power outside the new energy plant and the total output power inside the new energy plant.

[0045] Among them, the target new energy operation state is used to characterize the new energy units in the new energy plant to enter the new energy operation state, and the new energy operation state is used to characterize the output mode of the new energy units, which can be specifically divided into new energy full power output and new energy output; among them, new energy full power output refers to the output mode of the new energy units outputting at the maximum output power, and new energy output refers to the output mode of the new energy units outputting at a set output power that is not the maximum output power.

[0046] Among them, the target energy storage operation state is used to characterize the energy storage operation state that the energy storage unit in the new energy plant is about to enter, and the energy storage operation state is used to characterize the energy storage mode of the energy storage unit, which can be specifically divided into energy storage full power discharge, energy storage charging and energy storage full power charging; among them, energy storage full power discharge refers to the energy storage mode in which the energy storage unit discharges at the maximum energy storage power, energy storage charging refers to the energy storage mode in which the energy storage unit charges at a set energy storage power that is not the maximum energy storage power, and energy storage full power charging refers to the energy storage mode in which the energy storage unit charges at the maximum energy storage power.

[0047] Specifically, the coordination controller first determines the current plant power loss of the new energy plant, the upper limit of the total output power of the new energy controller in the new energy plant, the upper limit of the total energy storage power of the energy storage controller in the new energy plant, and the current plant power loss of the new energy plant; then, the coordination controller determines the new energy operation state to be entered by the new energy unit based on the plant target output power, the upper limit of the total output power of new energy, the upper limit of the total energy storage power and the current plant power loss, and obtains the target new energy operation state of the new energy plant, and determines the energy storage operation state to be entered by the energy storage unit, and obtains the target energy storage operation state of the new energy plant; then, the coordination controller determines the new energy control instructions corresponding to the new energy controller under the target new energy operation state, and the energy storage control instructions corresponding to the target energy storage operation state, based on the plant target output power, the upper limit of the total output power of new energy, the upper limit of the total energy storage power and the current plant power loss.

[0048] Step S206: Send the new energy control instruction to the new energy controller, and send the energy storage control instruction to the energy storage controller.

[0049] Among them, the new energy control instruction carries the new energy target total output power of the new energy plant, and the new energy target total output power is used to characterize the total output power of the new energy units in the desired new energy plant; the new energy controller responds to the received new energy control instruction and adjusts the new energy output power of the corresponding new energy output unit so that the total output power of the new energy units in the new energy plant reaches the new energy target total output power.

[0050] Among them, energy storage power includes energy storage discharge power and energy storage charging power.

[0051] Among them, the energy storage control instruction carries the target total energy storage discharge power or target total energy storage charging power of the new energy plant. The target total energy storage discharge power is used to characterize the total energy storage discharge power of the energy storage unit in the desired new energy plant, and the target total energy storage charging power is used to characterize the total energy storage charging power of the energy storage unit in the desired new energy plant; the energy storage controller responds to the received energy storage control instruction and adjusts the energy storage discharge power or energy storage charging power of the corresponding energy storage unit so that the total energy storage discharge power of the energy storage unit in the new energy plant reaches the target total energy storage discharge power, or the total energy storage charging power of the energy storage unit in the new energy plant reaches the target total energy storage charging power.

[0052] Specifically, the coordination controller sends the new energy control instruction to the new energy controller so that the new energy controller adjusts the new energy output power of the corresponding new energy unit, thereby making the total output power of the new energy units in the new energy plant reach the new energy target total output power, and sends the energy storage control instruction to the energy storage controller so that the energy storage controller adjusts the energy storage power of the corresponding energy storage unit, thereby making the total energy storage discharge power of the energy storage unit in the new energy plant reach the energy storage target total discharge power, or the total energy storage charging power reaches the energy storage target total charging power, thereby completing the power adjustment operation for the new energy plant.

[0053] In the above-mentioned new energy plant power adjustment method, the coordination controller can obtain the target new energy operation state of the new energy plant and the corresponding new energy control instruction of the new energy controller under the target new energy operation state, as well as the target energy storage operation state of the new energy plant and the corresponding energy storage control instruction of the energy storage controller under the target energy storage operation state through the plant target output power carried by the automatic power generation control instruction, the new energy total output power upper limit of the new energy controller in the new energy plant, the total energy storage power upper limit of the energy storage controller in the new energy plant and the current plant power loss of the new energy plant. The coordination controller can make the new energy controller adjust the new energy output power of the corresponding new energy unit and make the energy storage controller adjust the energy storage power of the corresponding energy storage unit by sending the new energy control instruction to the new energy controller and sending the energy storage control instruction to the energy storage controller. The new energy plant power adjustment method based on the above process can adjust the new energy output power of the new energy unit through the new energy controller and adjust the energy storage power of the energy storage unit through the energy storage controller through the sending of instructions, thereby maintaining the stable output of the new energy plant and improving the output stability of the new energy plant.

[0054] In an exemplary embodiment, Figure 3As shown, the above step S204, based on the target output power of the plant, the upper limit of the total output power of the new energy controller in the new energy plant, the upper limit of the total energy storage power of the energy storage controller in the new energy plant, and the current plant power loss of the new energy plant, determines the target new energy operation state of the new energy plant and the corresponding new energy control instruction of the new energy controller under the target new energy operation state, and determines the target energy storage operation state of the new energy plant and the corresponding energy storage control instruction of the energy storage controller under the target energy storage operation state, specifically including the following steps:

[0055] Step S302, when the target output power of the plant is greater than or equal to the upper limit of the total output power of the new energy, the target new energy operation state is determined to be the new energy full power output, and the target energy storage operation state is determined to be the energy storage full power discharge.

[0056] Step S304, determining the upper limit of the total output power of new energy as the target total output power of new energy of the new energy plant under the full power output of new energy, and generating the corresponding new energy control instruction of the new energy controller under the full power output of new energy based on the target total output power of new energy.

[0057] Step S306, determine the sum of the target output power of the plant and the current power loss of the plant as the required power of the new energy plant, determine the first power difference between the required power and the upper limit of the total output power of the new energy, determine the first power difference as the target total discharge power of the energy storage of the new energy plant under the full power discharge of the energy storage, and generate the corresponding energy storage control instructions of the energy storage controller under the full power discharge of the energy storage based on the target total discharge power of the energy storage.

[0058] Among them, new energy full power output refers to the output mode in which the new energy unit outputs at the maximum output power.

[0059] Among them, full-power discharge of energy storage refers to the energy storage mode in which the energy storage unit discharges at the maximum energy storage power.

[0060] The target total output power of new energy is used to represent the total output power of new energy units in the desired new energy plant.

[0061] The target total energy storage discharge power is used to characterize the total energy storage discharge power of the energy storage units in the desired new energy plant.

[0062] Specifically, the target output power of the power plant is , the upper limit of the total output power of new energy is , the upper limit of total energy storage power is , the power loss of the plant is .

[0063] If the target output power of the plant Greater than or equal to the upper limit of the total power output of new energy ,Right now , it means that the new energy output capacity of the new energy plant is not enough to meet the target output power demand of the plant. Therefore, in addition to the new energy units output, the energy storage units are also required to discharge. Then, the coordination controller determines the target new energy operation state as the new energy full power output, and the target energy storage operation state as the energy storage full power discharge.

[0064] Then, the coordination controller sets the total output power limit of the renewable energy Determine the total target output power of the new energy plant under the full power output of new energy ,Right now , and generate new energy target total output power The new energy control command is obtained to obtain the corresponding new energy control command of the new energy controller under the full power output of the new energy; and the coordination controller first calculates the target output power of the plant The current power loss of the plant The sum of the power required by the new energy plant is obtained , and then calculate the required power and the upper limit of the total output power of new energy The first power difference between The first power difference is determined as the target total discharge power of the new energy plant under full power discharge of the energy storage ,Right now , and generate the target total discharge power of energy storage The energy storage control instructions are obtained to obtain the corresponding new energy control instructions of the energy storage controller under full power discharge of the energy storage.

[0065] In this embodiment, the coordination controller can determine whether the new energy output capacity of the new energy plant is sufficient to meet the target output power of the plant by comparing the target output power of the plant with the upper limit of the total output power of new energy. If it is not sufficient, the target output power of the plant is reasonably allocated to the new energy units and the energy storage units through the full power output of new energy and the full power discharge of energy storage, and the corresponding new energy control instructions of the new energy controller under the full power output of new energy and the corresponding energy storage control instructions of the energy storage controller under the full power discharge of energy storage are obtained.

[0066] In an exemplary embodiment, Figure 4As shown, the above step S204, based on the target output power of the plant, the upper limit of the total output power of the new energy controller in the new energy plant, the upper limit of the total energy storage power of the energy storage controller in the new energy plant and the current plant power loss of the new energy plant, determines the target new energy operation state of the new energy plant and the corresponding new energy control instruction of the new energy controller under the target new energy operation state, determines the target energy storage operation state of the new energy plant and the corresponding energy storage control instruction of the energy storage controller under the target energy storage operation state, and specifically also includes the following steps:

[0067] Step S402: when the target power output of the power plant is less than the upper limit of the total power output of the new energy source, the sum of the target power output of the power plant and the current power loss of the power plant is determined as the required power of the new energy power plant.

[0068] Step S404, when the total energy storage power upper limit is greater than or equal to the second power difference between the total new energy output power upper limit and the required power, the target new energy operation state is determined as new energy full power output, and the target energy storage operation state is determined as energy storage charging.

[0069] Step S406, determining the upper limit of the total output power of new energy as the target total output power of new energy of the new energy plant under the full power output of new energy, and generating the corresponding new energy control instruction of the new energy controller under the full power output of new energy based on the target total output power of new energy.

[0070] Step S408, determining the second power difference as the target total charging power of the new energy plant under energy storage charging, and generating corresponding energy storage control instructions for the energy storage controller under energy storage charging based on the target total charging power of the energy storage.

[0071] Among them, new energy full power output refers to the output mode in which the new energy unit outputs at the maximum output power.

[0072] Among them, energy storage charging refers to an energy storage mode in which the energy storage unit is charged at a set energy storage power that is not the maximum energy storage power.

[0073] The target total output power of new energy is used to represent the total output power of new energy units in the desired new energy plant.

[0074] The target total energy storage charging power is used to characterize the total energy storage charging power of the energy storage units in the desired new energy plant.

[0075] Specifically, the target output power of the power plant is , the upper limit of the total output power of new energy is , the upper limit of total energy storage power is , the power loss of the plant is .

[0076] First, if the target output power of the plant is Less than the upper limit of total power output of new energy ,Right now , it means that the new energy output capacity of the new energy plant is sufficient to meet the target output power demand of the plant. Therefore, the output of the new energy unit can supply the new energy plant to generate power and also supply the energy storage unit for charging. Then, the coordination controller calculates the target output power of the plant. The current power loss of the plant The sum of the power required by the new energy plant is obtained ; Then, further, if the total energy storage power limit Greater than or equal to the upper limit of the total output power of new energy and required power The second power difference between In the case of , it means that the remaining margin after the new energy unit outputs at full power is within the energy storage range of the energy storage unit. Therefore, the coordination controller determines the target new energy operation state as the new energy full power output and the target energy storage operation state as the energy storage charging.

[0077] Then, the coordination controller sets the total power limit of the renewable energy output Determine the total target output power of the new energy plant under the full power output of new energy ,Right now , and generate new energy target total output power The new energy control instruction is obtained to obtain the new energy control instruction corresponding to the new energy controller under the full power output of the new energy; and the coordination controller converts the second power difference Determine the total charging power target for energy storage under energy storage charging for new energy plants ,Right now , and generate the target total charging power of energy storage The energy storage control instructions are obtained to obtain the corresponding new energy control instructions of the energy storage controller under energy storage charging.

[0078] In this embodiment, the coordination controller can determine whether the new energy output capacity of the new energy plant is sufficient to meet the target output power of the plant by comparing the target output power of the plant with the upper limit of the total output power of new energy. If it is sufficient, the target output power of the plant is reasonably allocated to the new energy units through the full power output of new energy and energy storage charging, and the output of the new energy units is reasonably allocated to the new energy plant and the energy storage units, so as to obtain the new energy control instructions corresponding to the new energy controller under the full power output of new energy and the energy storage control instructions corresponding to the energy storage controller under energy storage charging.

[0079] In an exemplary embodiment, Figure 5 As shown, the above step S204, based on the target output power of the plant, the upper limit of the total output power of the new energy controller in the new energy plant, the upper limit of the total energy storage power of the energy storage controller in the new energy plant and the current plant power loss of the new energy plant, determines the target new energy operation state of the new energy plant and the corresponding new energy control instruction of the new energy controller under the target new energy operation state, determines the target energy storage operation state of the new energy plant and the corresponding energy storage control instruction of the energy storage controller under the target energy storage operation state, and specifically also includes the following steps:

[0080] Step S502: when the target power output of the power plant is less than the upper limit of the total power output of the new energy source, the sum of the target power output of the power plant and the current power loss of the power plant is determined as the required power of the new energy power plant.

[0081] Step S504, when the total energy storage power upper limit is less than the second power difference between the total new energy output power upper limit and the required power, the target new energy operation state is determined as new energy output, and the target energy storage operation state is determined as energy storage full power charging.

[0082] Step S506, determining the upper limit of the total energy storage power as the target total energy storage charging power of the new energy plant under full energy storage charging, and generating corresponding energy storage control instructions for the energy storage controller under full energy storage charging based on the target total energy storage charging power.

[0083] Step S508, the sum of the required power and the target total charging power of the energy storage is determined as the target total output power of the new energy plant under the new energy output, and based on the target total output power of the new energy, a new energy control instruction corresponding to the new energy controller under the new energy output is generated.

[0084] Among them, new energy output refers to the output mode in which the new energy unit outputs power at a set output power that is not the maximum output power.

[0085] Among them, energy storage full-power charging refers to the energy storage mode in which the energy storage unit is charged at the maximum energy storage power.

[0086] The target total output power of new energy is used to represent the total output power of new energy units in the desired new energy plant.

[0087] The target total energy storage charging power is used to characterize the total energy storage charging power of the energy storage units in the desired new energy plant.

[0088] First, if the target output power of the plant is Less than the upper limit of total power output of new energy ,Right now , it means that the new energy output capacity of the new energy plant is sufficient to meet the target output power demand of the plant. Therefore, the output of the new energy unit can supply the new energy plant to generate power and also supply the energy storage unit for charging. Then, the coordination controller calculates the target output power of the plant. The current power loss of the plant The sum of the power required by the new energy plant is obtained ; Then, further, if the total energy storage power limit Less than the upper limit of total output power of new energy and required power The second power difference between In the case of , it means that the remaining margin after the new energy unit outputs at full power exceeds the energy storage range of the energy storage unit. Therefore, the coordination controller determines the target new energy operation state as new energy output and the target energy storage operation state as energy storage full power charging.

[0089] Then, the coordination controller sets the total energy storage power cap Determine the total charging power target for the new energy plant under full power charging of the energy storage ,Right now , and generate the target total charging power of energy storage The energy storage control instructions are obtained to obtain the corresponding new energy control instructions of the energy storage controller under full power charging of the energy storage; and the coordination controller calculates the required power and energy storage target total charging power The sum of , and the sum Determine the total output power of new energy target under the new energy output of the new energy plant ,Right now , that is , and then generate the total output power of the new energy target The new energy control instructions of the new energy controller are obtained under the new energy output.

[0090] In this embodiment, the coordination controller can determine whether the new energy output capacity of the new energy plant is sufficient to meet the target output power of the plant by comparing the target output power of the plant with the upper limit of the total output power of new energy. If it is sufficient, the target output power of the plant is reasonably allocated to the new energy units through the new energy output and full-power charging of energy storage, and the output of the new energy units is reasonably allocated to the new energy plant and the energy storage units, so as to obtain the new energy control instructions corresponding to the new energy controller under the new energy output, and the energy storage control instructions corresponding to the energy storage controller under the full-power charging of energy storage.

[0091] In an exemplary embodiment, there is at least one new energy controller in the new energy plant; the new energy control instruction carries the new energy target total output power of the new energy plant.

[0092] like Figure 6 As shown, the step in the above step S206, sending the new energy control instruction to the new energy controller, specifically includes the following steps:

[0093] Step S602: Determine at least one candidate new energy controller that is currently controllable among the new energy controllers in the new energy plant.

[0094] Step S604, determining the plant output adjustment amount of the new energy plant based on the new energy target total output power and the current plant output power of the new energy plant.

[0095] Step S606, based on the plant output regulation amount and the adjustable power information of each candidate new energy controller, determine at least one target new energy controller among the candidate new energy controllers, and split the plant output regulation amount into the new energy output regulation amount corresponding to each target new energy controller.

[0096] Step S608: generating a new energy sub-control instruction for each target new energy controller based on the new energy output adjustment amount corresponding to each target new energy controller.

[0097] Step S610: Send each new energy sub-control instruction to the corresponding target new energy controller.

[0098] Among them, the control state of the new energy controller is divided into controllable and uncontrollable.

[0099] The adjustable power information of the new energy controller is used to characterize the adjustable power range of the new energy controller, such as the adjustable power and the adjustable power.

[0100] Among them, the sum of the adjustable power information of each target new energy controller can cover the regulation needs of the plant output regulation.

[0101] Specifically, the coordination controller first determines at least one new energy controller whose current control state is controllable among the new energy controllers as a candidate new energy controller; then, the coordination controller selects the new energy controller according to the target total output power of the new energy. and the current power output of new energy plants , determine the power output regulation of new energy plants ; Then, the coordination controller adjusts the output according to the plant and the adjustable power information of each candidate new energy controller, and from each candidate new energy controller, select at least one candidate new energy controller whose corresponding sum of adjustable power information can cover the regulation demand of the plant output regulation amount, and obtain at least one target new energy controller; then, the coordination controller and the adjustable power information of each target new energy controller, and adjust the power output of the plant Split into the new energy output adjustment amount corresponding to each target new energy controller, that is, the plant output adjustment amount Reasonably allocate it to each target new energy controller; finally, for each target new energy controller, the coordination controller generates a new energy sub-control instruction carrying the new energy output adjustment amount corresponding to the target new energy controller, and sends the new energy sub-control instruction of the target new energy controller to the target new energy controller.

[0102] For example, assuming the total output power of new energy target is is 50, the current plant output power is 30, the adjustable power of new energy controller A is 20, the adjustable power of new energy controller B is 10, the adjustable power of new energy controller C is 8, the adjustable power of new energy controller D is 3, and the adjustable power of new energy controller E is 5. Then the power station output regulation .

[0103] If the candidate new energy controllers include new energy controller A, since the adjustable power of new energy controller A is sufficient to cover the power output regulation of the plant, Therefore, the coordination controller directly determines the new energy controller A as the target new energy controller and adjusts the plant output As the new energy output adjustment amount corresponding to the new energy controller A.

[0104] If the candidate renewable energy controllers are renewable energy controller B, renewable energy controller C, renewable energy controller D, and renewable energy controller E, since the sum of the adjustable power of renewable energy controller B, renewable energy controller C, and renewable energy controller D is 21, it can cover the power regulation of the plant output. Therefore, the coordination controller determines the new energy controller B, new energy controller C and new energy controller D as the target new energy controllers, and adjusts the power output of the plant station according to the adjustable power of each target new energy controller. Assigned to new energy controller B, new energy controller C and new energy controller D, and obtain the new energy output adjustment amount corresponding to new energy controller B, new energy controller C and new energy controller D respectively, for example, the new energy output adjustment amount corresponding to new energy controller B is 10, the new energy output adjustment amount corresponding to new energy controller C is 8, and the new energy output adjustment amount corresponding to new energy controller D is 2.

[0105] Let's take another example. Assuming the total output power of new energy target is is 50, the current plant output power The power of the new energy controller A can be adjusted down to 30, the power of the new energy controller B can be adjusted down to 10, the power of the new energy controller C can be adjusted down to 15, the power of the new energy controller D can be adjusted down to 7, and the power of the new energy controller E can be adjusted down to 5. Then the power output regulation of the plant is .

[0106] If the candidate new energy controllers include new energy controller A, since the adjustable power of new energy controller A is sufficient to cover the power output regulation of the plant, Therefore, the coordination controller directly determines the new energy controller A as the target new energy controller and adjusts the plant output As the new energy output adjustment amount corresponding to the new energy controller A.

[0107] If the candidate renewable energy controllers are renewable energy controller B, renewable energy controller C, renewable energy controller D, and renewable energy controller E, since the sum of the adjustable powers of renewable energy controller B, renewable energy controller C, and renewable energy controller E is 30, which can cover the regulation demand of the plant output regulation, the coordination controller determines renewable energy controller B, renewable energy controller C, and renewable energy controller E as target renewable energy controllers, and adjusts the plant output regulation according to the adjustable powers of each target renewable energy controller. Assigned to new energy controller B, new energy controller C and new energy controller E, and obtain the new energy output adjustment amount corresponding to new energy controller B, new energy controller C and new energy controller D respectively. For example, the new energy output adjustment amount corresponding to new energy controller B is -10, the new energy output adjustment amount corresponding to new energy controller C is -15, and the new energy output adjustment amount corresponding to new energy controller E is -5.

[0108] In practical applications, different new energy controllers have different priorities. Therefore, when determining the target new energy controller, the coordination controller can also determine the target new energy controller based on the plant output regulation, the adjustable power information of each candidate new energy controller, and the priority ranking among the candidate new energy controllers.

[0109] In this embodiment, the coordination controller can obtain the plant output adjustment amount through the new energy target total output power and the current plant output power. Based on the plant output adjustment amount and the adjustable power information of each controllable candidate new energy controller, it can determine from each candidate new energy controller the target new energy controller whose sum of corresponding adjustable power information is sufficient to cover the adjustment demand of the plant output adjustment amount, and then split the plant output adjustment amount to each target new energy controller, so that the power adjustment can be completed by as few new energy controllers as possible, avoiding unstable new energy plant output caused by too many new energy controllers participating in the power adjustment.

[0110] In an exemplary embodiment, Figure 7 As shown, the power regulation method for a new energy plant provided by the present application further includes the following steps for determining the adjustable power information of each new energy controller:

[0111] Step S702: for each new energy controller, obtain the rated power, preset single power reduction ratio and current new energy output power corresponding to the new energy controller.

[0112] Step S704, based on the product of the rated power and the preset single power reduction ratio, the adjustable power corresponding to the new energy controller is obtained, and based on the third power difference between the rated power and the current new energy output power, the adjustable power corresponding to the new energy controller is obtained.

[0113] Step S706: Determine the power that can be adjusted downward and the power that can be adjusted upward as the adjustable power information of the new energy controller.

[0114] Among them, the rated power, preset single power reduction ratio and current new energy output power corresponding to the new energy controller are the rated power, preset single power reduction ratio and current new energy output power of the new energy unit corresponding to the new energy controller.

[0115] In specific applications, in order to avoid unstable output of new energy plants due to large changes in output of new energy units during power adjustment, this application also presets a maximum proportion of power reduction for each new energy unit.

[0116] Therefore, the preset single power reduction ratio is used to represent the maximum ratio that can be reduced each time when the corresponding new energy controller controls the power reduction of the corresponding new energy unit, based on the current new energy output power of the corresponding new energy unit. For example, assuming that the preset single power reduction ratio corresponding to the new energy controller is 10%, and the current new energy output power corresponding to the new energy controller is 50, then the new energy controller can only control the output power of the corresponding new energy unit to be reduced by 5 at most, that is, the new energy output power becomes 45; then, when the new energy controller controls the output power of the corresponding new energy unit to be reduced again, it can only control the output power of the corresponding new energy unit to be reduced by 4.5 at most, that is, the new energy output power becomes 40.5.

[0117] In a specific application, the preset single power reduction ratio corresponding to each new energy controller may be different.

[0118] Specifically, for each new energy controller, the coordination controller first obtains the rated power of the new energy unit corresponding to the new energy controller. , preset single power reduction ratio and the current renewable energy output ; Then, the coordinated controller multiplies the rated power Ratio to preset single power reduction , get the adjustable power corresponding to the new energy controller ,Right now , and the coordinated controller calculates the rated power Compared with the current renewable energy output The third power difference between , get the adjustable power corresponding to the new energy controller ,Right now ; Finally, the coordinated controller will be able to reduce the power and adjustable power The adjustable power information of the new energy controller is determined.

[0119] In this embodiment, the coordination controller can obtain the adjustable power and adjustable power corresponding to the new energy controller through the rated power of the new energy unit corresponding to the new energy controller, the preset single power reduction ratio and the current new energy output power, and then obtain the adjustable power information corresponding to the new energy controller.

[0120] In an exemplary embodiment, Figure 8 As shown, the power adjustment method for the new energy plant provided in the present application further includes the following steps for determining the current plant output power of the new energy plant:

[0121] Step S802, obtaining the historical power loss of the new energy plant, the current total output power of new energy, the current total discharge power of energy storage and the current output power of the plant.

[0122] Step S804, determining the sum of the current total output power of new energy and the current total discharge power of energy storage, and determining a fourth power difference between the current plant output power and the sum of the powers.

[0123] Step S806, determining an average value of the historical plant power loss and the fourth power difference to obtain the current plant power loss of the new energy plant.

[0124] The coordination controller determines the current power output of the new energy plant at a preset time interval, for example, once every 30 seconds. Specifically, the coordination controller first obtains the historical power loss of the new energy plant. 、Current total output power of new energy , the current total energy storage discharge power and the current plant output power ; Then, the coordination controller determines the current total output power of new energy The total discharge power of the current energy storage The total power The total power is the total output power of the new energy plant, and the coordination controller determines the current plant output power With the total power The fourth power difference between ; Finally, the coordinated controller determines the historical plant power loss The fourth power difference The average , get the current power loss of the new energy plant , that is, the current power loss of the plant As shown in Formula 2:

[0125] (Formula 2)

[0126] In this embodiment, the coordination controller can determine the current plant output power of the new energy plant according to a preset time interval.

[0127] In an exemplary embodiment, the new energy plant power regulation method provided in this application also provides a control strategy for the energy storage unit, which is as follows:

[0128] For each energy storage unit, obtain the current remaining stored electrical energy of the energy storage unit .

[0129] If the remaining stored energy Greater than or equal to the first power threshold ,Right now , the coordination controller controls the energy storage unit to standby; wherein the first power threshold Generally, it is 95% of the upper limit of the energy storage power of the energy storage unit.

[0130] If the remaining stored energy Greater than or equal to the second power threshold , and is less than the first power threshold ,Right now , the coordination controller controls the energy storage unit to charge at 80% of the energy storage power upper limit of the energy storage unit; wherein the second power threshold Generally, it is 80% of the upper limit of the energy storage power of the energy storage unit.

[0131] If the remaining stored energy Less than or equal to the third power threshold ,Right now , the coordination controller controls the energy storage unit to standby; wherein the third power threshold It is generally 10% of the upper limit of the energy storage power of the energy storage unit.

[0132] If the remaining stored energy Less than or equal to the fourth power threshold , and is greater than the third power threshold Right now, , the coordination controller controls the energy storage unit to discharge at 80% of the upper limit of the energy storage power of the energy storage unit; wherein the fourth electric energy threshold Generally, it is 20% of the upper limit of the energy storage power of the energy storage unit.

[0133] In order to more clearly illustrate the power regulation method of the new energy plant provided by the embodiment of the present application, the power regulation method of the new energy plant is specifically described below with a specific embodiment, but it should be understood that the embodiment of the present application is not limited thereto. In one exemplary embodiment, the present application also provides an automatic power generation control method based on the new energy plant combined with energy storage, which specifically includes the following strategies:

[0134] 1. Response strategy for AGC instructions.

[0135] When the AGC instruction changes, calculate the plant target output power carried by the AGC instruction Power output of new energy plants and stations The power output regulation between the plants , the power output of the plant is adjusted by active power distribution strategy and photovoltaic power control strategy Reasonably allocate to photovoltaic controllers and energy storage controllers in new energy plants.

[0136] When the AGC command does not change, if the loss fluctuation of the whole field is detected, the output power of the new energy plant to the outside plant will be The target output power of the plant carried by the AGC instruction The offset exceeds the set dead zone value. ,Right now , then recalculate the plant target output power carried by the AGC instruction Power output of new energy plants and stations The power output regulation between the plants , the power output of the plant is adjusted by active power distribution strategy and photovoltaic power control strategy Reasonably allocate to photovoltaic controllers and energy storage controllers in new energy plants.

[0137] When the AGC command does not change during stable operation, obtain the power loss history of the new energy plant every 30 seconds. 、Current total output power of new energy , the current total energy storage discharge power and the current plant output power , calculate the power loss of a plant ,in, .

[0138] 2. Active power allocation strategy.

[0139] The target output power of the power plant is , the upper limit of the total output power of new energy is , the upper limit of total energy storage power is , the power loss of the plant is .

[0140] like , the target new energy operation state is determined as the new energy full power output, and the new energy target total output power is Set to , and, determining the target energy storage operation state as full power discharge of energy storage, and setting the target total discharge power of energy storage Set to .

[0141] like and , the target new energy operation state is determined as the new energy full power output, and the new energy target total output power is Set to , and determining the target energy storage operation state as energy storage charging, and setting the energy storage target total charging power Set to .

[0142] like and , the target new energy operation state is determined as new energy output, the target energy storage operation state is determined as energy storage full power charging, and the energy storage target total charging power is determined as Set to , the total output power of new energy target Set to , that is .

[0143] 3. Photovoltaic power control strategy.

[0144] Among the new energy controllers, determine the candidate new energy controllers whose current control state is controllable; then, count the adjustable power of each candidate new energy controller and adjustable power down ; Then, based on the power output adjustment of the plant And the adjustable power of each candidate new energy controller and the power that can be reduced, and among the candidate new energy controllers, a target new energy controller is determined to participate in active power distribution.

[0145] in, , ;in, is the rated power, For the current new energy output power, It is the preset single power reduction ratio.

[0146] 4. Energy storage power control strategy.

[0147] For each energy storage unit, obtain the current remaining stored electrical energy of the energy storage unit .

[0148] If the remaining stored energy Greater than or equal to the first power threshold ,Right now , the coordination controller controls the energy storage unit to standby; wherein the first power threshold Generally, it is 95% of the upper limit of the energy storage power of the energy storage unit.

[0149] If the remaining stored energy Greater than or equal to the second power threshold , and is less than the first power threshold ,Right now , the coordination controller controls the energy storage unit to charge at 80% of the energy storage power upper limit of the energy storage unit; wherein the second power threshold Generally, it is 80% of the upper limit of the energy storage power of the energy storage unit.

[0150] If the remaining stored energy Less than or equal to the third power threshold ,Right now , the coordination controller controls the energy storage unit to standby; wherein the third power threshold It is generally 10% of the upper limit of the energy storage power of the energy storage unit.

[0151] If the remaining stored energy Less than or equal to the fourth power threshold , and is greater than the third power threshold Right now, , the coordination controller controls the energy storage unit to discharge at 80% of the upper limit of the energy storage power of the energy storage unit; wherein the fourth electric energy threshold Generally, it is 20% of the upper limit of the energy storage power of the energy storage unit.

[0152] In this embodiment, energy storage control technology is introduced into the new energy AGC power regulation, and the rapid regulation capability of energy storage power is utilized to realize AGC regulation of new energy power generation combined with energy storage, respond to AGC instructions, improve regulation stability, and enhance regulation benefits.

[0153] It should be understood that, although the various steps in the flowcharts involved in the above-mentioned embodiments are displayed in sequence according to the indication of the arrows, these steps are not necessarily executed in sequence according to the order indicated by the arrows. Unless there is a clear explanation in this article, the execution of these steps is not strictly limited in order, and these steps can be executed in other orders. Moreover, at least a part of the steps in the flowcharts involved in the above-mentioned embodiments can include multiple steps or multiple stages, and these steps or stages are not necessarily executed at the same time, but can be executed at different times, and the execution order of these steps or stages is not necessarily carried out in sequence, but can be executed in turn or alternately with other steps or at least a part of the steps or stages in other steps.

[0154] Based on the same inventive concept, the embodiment of the present application also provides a new energy plant power regulation device for implementing the new energy plant power regulation method involved above. The implementation scheme for solving the problem provided by the device is similar to the implementation scheme recorded in the above method, so the specific limitations in one or more embodiments of the new energy plant power regulation device provided below can refer to the limitations of the new energy plant power regulation method above, and will not be repeated here.

[0155] In an exemplary embodiment, Fig. 9 As shown, a new energy plant power regulation device is provided, including: an instruction acquisition module 902, an instruction generation module 904 and an instruction issuing module 906, wherein:

[0156] The instruction acquisition module 902 is used to acquire the automatic power generation control instruction for the new energy plant; the automatic power generation control instruction carries the plant target output power of the new energy plant.

[0157] The instruction generation module 904 is used to determine the target new energy operation state of the new energy plant and the corresponding new energy control instructions of the new energy controller under the target new energy operation state, and determine the target energy storage operation state of the new energy plant and the corresponding energy storage control instructions of the energy storage controller under the target energy storage operation state based on the target output power of the plant, the upper limit of the total new energy output power of the new energy controller in the new energy plant, the upper limit of the total energy storage power of the energy storage controller in the new energy plant and the current power loss of the new energy plant.

[0158] The instruction issuing module 906 is used to issue the new energy control instruction to the new energy controller and the energy storage control instruction to the energy storage controller; the new energy controller responds to the received new energy control instruction to adjust the new energy output power of the corresponding new energy output unit, and the energy storage controller responds to the received energy storage control instruction to adjust the energy storage power of the corresponding energy storage unit.

[0159] In an exemplary embodiment, the instruction generation module 904 is also used to determine the target new energy operation state as the new energy full power output and the target energy storage operation state as the energy storage full power discharge when the target output power of the plant is greater than or equal to the upper limit of the total output power of the new energy; determine the upper limit of the total output power of the new energy as the target total output power of the new energy plant under the new energy full power output, and generate the corresponding new energy control instruction of the new energy controller under the new energy full power output based on the target total output power of the new energy; determine the sum of the target output power of the plant and the current power loss of the plant as the required power of the new energy plant, determine the first power difference between the required power and the upper limit of the total output power of the new energy, determine the first power difference as the target total discharge power of the energy storage when the new energy plant is discharged at full power, and generate the corresponding energy storage control instruction of the energy storage controller under the energy storage full power discharge based on the target total discharge power of the energy storage.

[0160] In an exemplary embodiment, the instruction generation module 904 is also used to determine the sum of the target output power of the plant and the current power loss of the plant as the required power of the new energy plant when the target output power of the plant is less than the upper limit of the total output power of new energy; determine the target new energy operation state as the full power output of new energy, and determine the target energy storage operation state as energy storage charging when the upper limit of the total output power of energy storage is greater than or equal to the second power difference between the upper limit of the total output power of new energy and the required power; determine the upper limit of the total output power of new energy as the target total output power of new energy of the new energy plant under the full power output of new energy, and generate the corresponding new energy control instruction of the new energy controller under the full power output of new energy based on the target total output power of new energy; determine the second power difference as the target total charging power of energy storage of the new energy plant under energy storage charging, and generate the corresponding energy storage control instruction of the energy storage controller under energy storage charging based on the target total charging power of energy storage.

[0161] In an exemplary embodiment, the instruction generation module 904 is also used to determine the sum of the target output power of the plant and the current power loss of the plant as the required power of the new energy plant when the target output power of the plant is less than the upper limit of the total output power of new energy; determine the target new energy operation state as new energy output, and determine the target energy storage operation state as full-power charging of energy storage when the total power upper limit of energy storage is less than the second power difference between the upper limit of the total output power of new energy and the required power; determine the upper limit of the total power of energy storage as the target total charging power of energy storage when the new energy plant is charged at full power, and generate the energy storage control instruction corresponding to the energy storage controller under the full-power charging of energy storage based on the target total charging power of energy storage; determine the sum of the required power and the target total charging power of energy storage as the target total output power of new energy of the new energy plant under the new energy output, and generate the new energy control instruction corresponding to the new energy controller under the new energy output based on the target total output power of new energy.

[0162] In an exemplary embodiment, there is at least one new energy controller in the new energy plant; the new energy control instruction carries the new energy target total output power of the new energy plant.

[0163] The instruction issuing module 906 is also used to determine at least one candidate new energy controller that is currently controllable among each new energy controller in the new energy plant; determine the plant output adjustment amount of the new energy plant based on the new energy target total output power and the current plant output power of the new energy plant; determine at least one target new energy controller among each candidate new energy controller based on the plant output adjustment amount and the adjustable power information of each candidate new energy controller, and split the plant output adjustment amount into the new energy output adjustment amount corresponding to each target new energy controller; generate a new energy sub-control instruction for each target new energy controller based on the new energy output adjustment amount corresponding to each target new energy controller; and issue each new energy sub-control instruction to the corresponding target new energy controller.

[0164] In an exemplary embodiment, the new energy plant power regulation device also includes an adjustable power determination module, which is used to obtain, for each new energy controller, the rated power, the preset single power reduction ratio and the current new energy output power corresponding to the new energy controller; based on the product of the rated power and the preset single power reduction ratio, the adjustable down power corresponding to the new energy controller is obtained, and based on the third power difference between the rated power and the current new energy output power, the adjustable up power corresponding to the new energy controller is obtained; and the adjustable down power and the adjustable up power are determined as the adjustable power information of the new energy controller.

[0165] In an exemplary embodiment, the new energy plant power regulation device also includes a power loss determination module, which is used to obtain the historical plant power loss of the new energy plant, the current total new energy output power, the current total energy storage discharge power and the current plant output power; determine the total power of the current total new energy output power and the current total energy storage discharge power, and determine the fourth power difference between the current plant output power and the total power; determine the average value of the historical plant power loss and the fourth power difference, and obtain the current plant power loss of the new energy plant.

[0166] Each module in the above-mentioned new energy plant power regulation device can be implemented in whole or in part by software, hardware and their combination. Each of the above-mentioned modules can be embedded in or independent of the processor in the computer device in the form of hardware, or can be stored in the memory of the computer device in the form of software, so that the processor can call and execute the operations corresponding to each of the above modules.

[0167] 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. Fig.10As shown. The computer device includes a processor, a memory, an input / output interface (Input / Output, referred to as I / O) and a communication interface. Among them, the processor, the memory and the input / output interface are connected through a system bus, and the communication interface is connected to the system bus through the input / output interface. Among them, 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 environment for the operation of the operating system and the computer program in the non-volatile storage medium. The database of the computer device is used to store various power data of the new energy plant. The input / output interface of the computer device is used to exchange information between the processor and the external device. The communication interface of the computer device is used to communicate with an external terminal through a network connection. When the computer program is executed by the processor, a new energy plant power regulation method is implemented.

[0168] Those skilled in the art will understand that Fig.10 The structure shown in the figure is only a block diagram of a part of the 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 those shown in the figure, or combine certain components, or have a different arrangement of components.

[0169] In an exemplary embodiment, a computer device is further provided, including a memory and a processor, wherein a computer program is stored in the memory, and the processor implements the steps in the above-mentioned method embodiments when executing the computer program.

[0170] In an exemplary 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.

[0171] In an exemplary embodiment, a computer program product is provided, including a computer program, and when the computer program is executed by a processor, the steps in the above method embodiments are implemented.

[0172] A person of ordinary skill in the art can understand that all or part of the processes in the above-mentioned embodiment method can be completed by instructing the relevant hardware through a computer program, and 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 the memory, database or other medium used in the embodiments provided in the present 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. As an illustration and not limitation, RAM can be in various forms, such as static random access memory (SRAM) or dynamic random access memory (DRAM). The database involved in each embodiment provided in this application may include at least one of a relational database and a non-relational database. Non-relational databases may include distributed databases based on blockchains, etc., but are not limited to this. The processor involved in each embodiment provided in this application may be a general-purpose processor, a central processing unit, a graphics processor, a digital signal processor, a programmable logic device, a data processing logic device based on quantum computing, an artificial intelligence (AI) processor, etc., but are not limited to this.

[0173] The technical features of the above embodiments may be combined arbitrarily. 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.

[0174] The above-described embodiments only express several implementation methods of the present application, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the present application. It should be pointed out that, for a person of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the present application, and these all belong to the protection scope of the present application. Therefore, the protection scope of the present application shall be subject to the attached claims.

Claims

1. A method for regulating power of a new energy plant, characterized in that: The method comprises: Obtaining an automatic power generation control instruction for a new energy plant; the automatic power generation control instruction carries the plant target output power of the new energy plant; Based on the target output power of the plant, the upper limit of the total output power of the new energy controller in the new energy plant, the upper limit of the total energy storage power of the energy storage controller in the new energy plant, and the current plant power loss of the new energy plant, determine the target new energy operation state of the new energy plant and the corresponding new energy control instruction of the new energy controller under the target new energy operation state, and determine the target energy storage operation state of the new energy plant and the corresponding energy storage control instruction of the energy storage controller under the target energy storage operation state; The new energy control instruction is sent to the new energy controller, and the energy storage control instruction is sent to the energy storage controller; the new energy controller adjusts the new energy output power of the corresponding new energy output unit in response to the received new energy control instruction, and the energy storage controller adjusts the energy storage power of the corresponding energy storage unit in response to the received energy storage control instruction.

2. The method according to claim 1, characterized in that The method of determining the target new energy operation state of the new energy plant and the corresponding new energy control instruction of the new energy controller under the target new energy operation state based on the plant target output power, the upper limit of the total new energy output power of the new energy controller in the new energy plant, the upper limit of the total energy storage power of the energy storage controller in the new energy plant and the current plant power loss of the new energy plant, and determining the target energy storage operation state of the new energy plant and the corresponding energy storage control instruction of the energy storage controller under the target energy storage operation state include: When the target output power of the power plant is greater than or equal to the upper limit of the total output power of the new energy, the target new energy operation state is determined as the new energy full power output, and the target energy storage operation state is determined as the energy storage full power discharge; Determine the upper limit of the total output power of the new energy source as the target total output power of the new energy source of the new energy source station under the full output power of the new energy source, and generate a corresponding new energy control instruction of the new energy controller under the full output power of the new energy source based on the target total output power of the new energy source; The sum of the target power output of the plant and the current power loss of the plant is determined as the required power of the new energy plant, and a first power difference between the required power and the upper limit of the total output power of the new energy is determined. The first power difference is determined as the target total discharge power of the energy storage of the new energy plant when the energy storage is discharged at full power. Based on the target total discharge power of the energy storage, the energy storage control instruction corresponding to the energy storage controller under the full power discharge of the energy storage is generated.

3. The method according to claim 1, characterized in that The method of determining the target new energy operation state of the new energy plant and the corresponding new energy control instruction of the new energy controller under the target new energy operation state based on the plant target output power, the upper limit of the total new energy output power of the new energy controller in the new energy plant, the upper limit of the total energy storage power of the energy storage controller in the new energy plant and the current plant power loss of the new energy plant, and determining the target energy storage operation state of the new energy plant and the corresponding energy storage control instruction of the energy storage controller under the target energy storage operation state include: When the target power output of the power plant is less than the upper limit of the total power output of the new energy, the sum of the target power output of the power plant and the current power loss of the power plant is determined as the required power of the new energy power plant; When the energy storage total power upper limit is greater than or equal to the second power difference between the new energy total output power upper limit and the required power, the target new energy operation state is determined as new energy full power output, and the target energy storage operation state is determined as energy storage charging; Determine the upper limit of the total output power of the new energy source as the target total output power of the new energy source of the new energy source station under the full output power of the new energy source, and generate a corresponding new energy control instruction of the new energy controller under the full output power of the new energy source based on the target total output power of the new energy source; The second power difference is determined as the target total charging power of the new energy plant under the energy storage charging, and based on the target total charging power of the energy storage, an energy storage control instruction corresponding to the energy storage controller under the energy storage charging is generated.

4. The method according to claim 1, characterized in that: The method of determining the target new energy operation state of the new energy plant and the corresponding new energy control instruction of the new energy controller under the target new energy operation state based on the plant target output power, the upper limit of the total new energy output power of the new energy controller in the new energy plant, the upper limit of the total energy storage power of the energy storage controller in the new energy plant and the current plant power loss of the new energy plant, and determining the target energy storage operation state of the new energy plant and the corresponding energy storage control instruction of the energy storage controller under the target energy storage operation state include: When the target power output of the power plant is less than the upper limit of the total power output of the new energy, the sum of the target power output of the power plant and the current power loss of the power plant is determined as the required power of the new energy power plant; When the energy storage total power upper limit is less than the second power difference between the new energy total output power upper limit and the required power, the target new energy operation state is determined as new energy output, and the target energy storage operation state is determined as energy storage full power charging; Determine the upper limit of the total energy storage power as the target total energy storage charging power of the new energy plant under the full power charging of the energy storage, and generate the energy storage control instruction corresponding to the energy storage controller under the full power charging of the energy storage based on the target total energy storage charging power; The sum of the required power and the target total charging power of the energy storage is determined as the target total output power of the new energy plant under the new energy output, and based on the target total output power of the new energy, a corresponding new energy control instruction of the new energy controller under the new energy output is generated.

5. The method according to any one of claims 1 to 4, characterized in that: There is at least one new energy controller in the new energy plant; the new energy control instruction carries the new energy target total output power of the new energy plant; The sending of the new energy control instruction to the new energy controller includes: Determine at least one candidate new energy controller that is currently controllable among the new energy controllers in the new energy plant; Determining a plant output adjustment amount of the new energy plant based on the new energy target total output power and the current plant output power of the new energy plant; Based on the plant output regulation amount and the adjustable power information of each candidate new energy controller, at least one target new energy controller is determined among the candidate new energy controllers, and the plant output regulation amount is split into the new energy output regulation amount corresponding to each target new energy controller; Based on the new energy output adjustment amount corresponding to each target new energy controller, generating a new energy sub-control instruction of each target new energy controller; Each new energy sub-control instruction is sent to the corresponding target new energy controller.

6. The method according to claim 5, characterized in that The method further comprises: For each new energy controller, obtain the rated power, preset single power reduction ratio and current new energy output power corresponding to the new energy controller; Based on the product of the rated power and the preset single power reduction ratio, the adjustable power corresponding to the new energy controller is obtained, and based on the third power difference between the rated power and the current new energy output power, the adjustable power corresponding to the new energy controller is obtained; The downwardly adjustable power and the upwardly adjustable power are determined as the adjustable power information of the new energy controller.

7. The method according to any one of claims 1 to 4, characterized in that: The method further comprises: Obtain the historical power loss of the new energy plant, the current total output power of new energy, the current total discharge power of energy storage and the current output power of the plant; Determine the sum of the current total output power of new energy and the current total discharge power of energy storage, and determine a fourth power difference between the current plant output power and the power sum; Determine the average value of the historical plant power loss and the fourth power difference to obtain the current plant power loss of the new energy plant.

8. A power regulation device for a new energy plant, characterized in that: The device comprises: An instruction acquisition module is used to acquire an automatic power generation control instruction for a new energy plant; the automatic power generation control instruction carries the plant target output power of the new energy plant; An instruction generation module is used to determine the target new energy operation state of the new energy plant and the corresponding new energy control instruction of the new energy controller under the target new energy operation state, and determine the target energy storage operation state of the new energy plant and the corresponding energy storage control instruction of the energy storage controller under the target energy storage operation state based on the target output power of the plant, the upper limit of the total new energy output power of the new energy controller in the new energy plant, the upper limit of the total energy storage power of the energy storage controller in the new energy plant, and the current plant power loss of the new energy plant; An instruction issuing module is used to issue the new energy control instruction to the new energy controller and the energy storage control instruction to the energy storage controller; the new energy controller adjusts the new energy output power of the corresponding new energy output unit in response to the received new energy control instruction, and the energy storage controller adjusts the energy storage power of the corresponding energy storage unit in response to the received energy storage control instruction.

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.

Images