A method and system for smooth transition control of task switching of microgrid cluster system

Abstract

The present invention relates to the technical field of microgrid cluster control, and specifically discloses a method and system for smooth transition control of task switching of a microgrid cluster system, the method comprising: generating a first coordinated switching signal and a second coordinated switching signal based on a scheduling task switching signal at the current moment and an individual feedback signal at the previous moment corresponding to any individual object in the microgrid cluster system; generating a power secondary control signal according to the first coordinated switching signal, the scheduling task switching signal at the current moment and a neighbor state signal and an individual feedback signal at the previous moment; generating a voltage frequency secondary control signal according to the power secondary control signal, the second coordinated switching signal and the individual feedback signal at the previous moment, so as to perform task switching smooth transition control through the voltage frequency secondary control signal and the power secondary control signal. The present invention can realize smooth switching control of scheduling tasks, suppress state jumps, and ensure robust stability of voltage and frequency finite time consistency.

Description

Technical Field

[0001] The present invention relates to the technical field of microgrid cluster control, and in particular to a method and system for controlling smooth transition of task switching of a microgrid cluster system. Background Art

[0002] Microgrids (MGs, referred to as microgrids) composed of distributed energy resources (DERs) are an emerging technological trend in urban buildings. The application of multi-energy microgrids composed of different power generation units such as photovoltaics, wind turbines, energy storage, and combined cooling, heating and power is one of the important supporting technologies for building energy conservation and urban carbon neutrality. The various MGs applied to urban buildings naturally form a microgrid cluster system (Microgrid Cluster, MGC, referred to as microgrid group). The stability of the microgrid group is the primary issue. Photovoltaics, wind turbines, gas turbines and energy storage in the building microgrid group constitute a collection of distributed generators (DGs), which have poor stability. The heterogeneous diversity of DG makes it difficult for the building multi-energy microgrid to operate stably.

[0003] The power generation of photovoltaic and wind turbines changes with the environment; bidirectional devices such as energy storage, micro-sources and loads can both obtain power from the microgrid and provide power to the microgrid. Therefore, the operation and management of the microgrid group system is very complex, and it is necessary to coordinate and control the micro-sources, loads and inverters in the microgrid group in response to the upper-level economic operation needs and scheduling task changes to ensure that the microgrid group can meet the operation needs in different states and environments.

[0004] When a multi-energy AC microgrid cluster system (MGC) in the context of building energy-saving applications performs collaborative tasks, it needs to switch under various switching instructions of the power grid; sometimes it is necessary to track the dispatching instructions with the expected trajectory. Obviously, the traditional cluster secondary recovery consistency control method cannot be directly applied to the scheduling task switching changes of the MGC system. Although the existing research methods can partially realize power scheduling and regulation, the corresponding voltage and frequency secondary recovery consistency control methods cannot be directly applied to the system scheduling task instruction switching.

[0005] Therefore, it is urgent to provide a technical solution to solve the above problems. Summary of the invention

[0006] In order to solve the above technical problems, the present invention provides a method and system for smooth transition control of task switching in a microgrid cluster system.

[0007] In a first aspect, the present invention provides a method for controlling the smooth transition of task switching of a microgrid cluster system. The technical solution of the method is as follows:

[0008] A method for smooth transition control of task switching of a microgrid cluster system comprises the following steps:

[0009] Generate a first coordinated switching signal and a second coordinated switching signal based on a scheduling task switching signal at a current moment and an individual feedback signal at a previous moment corresponding to any individual object in the microgrid cluster system;

[0010] Generate a power secondary control signal corresponding to any individual object according to the first coordination switching signal corresponding to any individual object, the scheduling task switching signal and the neighbor status signal at the current moment, and the individual feedback signal at the previous moment;

[0011] According to the power secondary control signal corresponding to any individual object, the second coordinated switching signal and the individual feedback signal at the previous moment, a voltage frequency secondary control signal corresponding to any individual object is generated, so as to perform task switching smooth transition control on any individual object through the voltage frequency secondary control signal and the power secondary control signal corresponding to any individual object.

[0012] The beneficial effects of a microgrid cluster system task switching smooth transition control method of the present invention are as follows:

[0013] The method of the present invention can realize smooth switching control of scheduling tasks, suppress state jumps, and ensure the robust stability of voltage and frequency finite time consistency.

[0014] On the basis of the above scheme, the microgrid cluster system task switching smooth transition control method of the present invention can also be improved as follows.

[0015] In an optional manner, the step of generating a first coordinated switching signal and a second coordinated switching signal based on a scheduling task switching signal at a current moment and an individual feedback signal at a previous moment corresponding to any individual object in the microgrid cluster system includes:

[0016] The task coordinator corresponding to any of the individual objects is utilized, and according to the scheduling task switching signal at the current moment and the individual feedback signal at the previous moment corresponding to any of the individual objects, a first coordination switching signal and a second coordination switching signal are generated.

[0017] In an optional manner, the step of generating a power secondary control signal corresponding to any individual object according to the first coordinated switching signal corresponding to any individual object, the scheduling task switching signal and the neighbor status signal at the current moment, and the individual feedback signal at the previous moment includes:

[0018] The power secondary controller is tracked using the scheduling instruction corresponding to any individual object, and the power secondary control signal corresponding to any individual object is generated according to the first coordination switching signal corresponding to any individual object, the scheduling task switching signal and the neighbor status signal at the current moment, and the individual feedback signal at the previous moment.

[0019] In an optional manner, the step of generating a voltage-frequency secondary control signal corresponding to any individual object according to the power secondary control signal corresponding to any individual object, the second coordinated switching signal and the individual feedback signal at the previous moment includes:

[0020] The voltage-frequency secondary controller corresponding to any individual object is utilized, and according to the power secondary control signal corresponding to any individual object, the second coordinated switching signal and the individual feedback signal at the previous moment, a voltage-frequency secondary control signal corresponding to any individual object is generated.

[0021] In an optional manner, the method further includes:

[0022] A neighbor status signal corresponding to any individual object at the current moment sent through the communication layer is received, and a scheduling task switching signal corresponding to any individual object at the current moment is received, which is generated by the energy management layer and sent through the communication layer.

[0023] In a second aspect, the present invention provides a microgrid cluster system task switching smooth transition control system, the technical solution of the system is as follows:

[0024] A microgrid cluster system task switching smooth transition control system, comprising: a plurality of individual controllers; each individual controller correspondingly controls an object in the microgrid cluster system; any individual controller is used to:

[0025] Generate a first coordinated switching signal and a second coordinated switching signal based on a scheduling task switching signal at a current moment and an individual feedback signal at a previous moment corresponding to any individual object in the microgrid cluster system;

[0026] Generate a power secondary control signal corresponding to any individual object according to the first coordination switching signal corresponding to any individual object, the scheduling task switching signal and the neighbor status signal at the current moment, and the individual feedback signal at the previous moment;

[0027] According to the power secondary control signal corresponding to any individual object, the second coordinated switching signal and the individual feedback signal at the previous moment, a voltage frequency secondary control signal corresponding to any individual object is generated, so as to perform task switching smooth transition control on any individual object through the voltage frequency secondary control signal and the power secondary control signal corresponding to any individual object.

[0028] The beneficial effects of a microgrid cluster system task switching smooth transition control system of the present invention are as follows:

[0029] The system of the present invention can realize smooth switching control of scheduling tasks, suppress state jumps, and ensure the robust stability of voltage and frequency finite time consistency.

[0030] On the basis of the above scheme, a microgrid cluster system task switching smooth transition control system of the present invention can also be improved as follows.

[0031] In an optional manner, any individual controller is specifically used for:

[0032] The task coordinator corresponding to any of the individual objects is utilized, and according to the scheduling task switching signal at the current moment and the individual feedback signal at the previous moment corresponding to any of the individual objects, a first coordination switching signal and a second coordination switching signal are generated.

[0033] In an optional manner, any individual controller is specifically used for:

[0034] The power secondary controller is tracked using the scheduling instruction corresponding to any individual object, and the power secondary control signal corresponding to any individual object is generated according to the first coordination switching signal corresponding to any individual object, the scheduling task switching signal and the neighbor status signal at the current moment, and the individual feedback signal at the previous moment.

[0035] In an optional manner, any individual controller is specifically used for:

[0036] The voltage-frequency secondary controller corresponding to any individual object is utilized, and according to the power secondary control signal corresponding to any individual object, the second coordinated switching signal and the individual feedback signal at the previous moment, a voltage-frequency secondary control signal corresponding to any individual object is generated.

[0037] In an optional manner, it further includes: a communication layer and an energy management layer; any individual controller is further used for:

[0038] A neighbor status signal corresponding to any individual object at the current moment sent through the communication layer is received, and a scheduling task switching signal corresponding to any individual object at the current moment is received, which is generated by the energy management layer and sent through the communication layer.

[0039] The above description is only an overview of the technical solution of the present invention. In order to more clearly understand the technical means of the present invention, it can be implemented according to the contents of the specification. In order to make the above and other purposes, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are listed below. BRIEF DESCRIPTION OF THE DRAWINGS

[0040] The accompanying drawings are only used to illustrate the embodiments and are not to be considered as limiting the present invention. In addition, the same reference symbols are used to represent the same components throughout the accompanying drawings. In the accompanying drawings:

[0041] Figure 1 A schematic flow chart of an embodiment of a method for controlling smooth transition of task switching of a microgrid cluster system according to the present invention;

[0042] Figure 2 It is the overall control structure diagram;

[0043] Figure 3 It is a structural schematic diagram of an embodiment of a microgrid cluster system task switching smooth transition control system of the present invention. DETAILED DESCRIPTION

[0044] Exemplary embodiments of the present invention will be described in more detail below with reference to the accompanying drawings. Although exemplary embodiments of the present invention are shown in the drawings, it should be understood that the present invention can be implemented in various forms and should not be limited to the embodiments set forth herein.

[0045] Figure 1 The flowchart of an embodiment of a microgrid cluster system task switching smooth transition control method provided by the present invention is shown, and the method is executed by an individual controller. Figure 1 As shown, the following steps are included:

[0046] S1, based on the current scheduling task switching signal and the previous individual feedback signal corresponding to any individual object in the microgrid cluster system, generate a first coordination switching signal and a second coordination switching signal.

[0047] 1) The default microgrid cluster system is: building multi-energy AC microgrid cluster system, which can also be adjusted according to actual conditions and is not restricted here.

[0048] 2) The microgrid cluster system contains multiple individual objects, each of which is a DG individual, and each individual object corresponds to an individual controller. An individual controller and the corresponding DG individual constitute a DG individual layer.

[0049] 3) The dispatching task switching signal r(t)=1,2,…,γ may be a constant, a variable, or a certain trajectory in a certain period of time, and the state of the sub-microgrid leader also changes accordingly. The dispatching task switching signal is a switching signal indicating the changes of tripping, closing, heavy load switching, fault, maintenance, etc.

[0050] 4) Individual feedback signals include: power signals and voltage-frequency signals of individual objects.

[0051] 5) The individual controller includes a task coordinator, a dispatch instruction tracking power secondary controller and a voltage and frequency secondary controller.

[0052] S2: Generate a power secondary control signal corresponding to any individual object according to the first coordination switching signal corresponding to any individual object, the scheduling task switching signal and the neighbor status signal at the current moment, and the individual feedback signal at the previous moment.

[0053] 1) Neighbor status signal: the status signal of neighbor individuals within a certain range determined by the communication topology relationship of the individual object. Each individual object collects its own individual status signal according to its own data acquisition system and sends it to the communication layer. The communication layer integrates and processes the individual status signal to obtain the neighbor status signal corresponding to each individual object.

[0054] 2) The power secondary control signal is u i ,u i represents the power secondary control signal of the ith individual plant.

[0055] S3. Generate a voltage-frequency secondary control signal corresponding to any individual object according to the power secondary control signal, the second coordinated switching signal and the individual feedback signal at the previous moment corresponding to any individual object, so as to perform task switching smooth transition control on any individual object through the voltage-frequency secondary control signal and the power secondary control signal corresponding to any individual object.

[0056] Among them, the voltage frequency secondary control signal is u i ,u i represents the voltage-frequency secondary control signal of the ith individual plant.

[0057] Preferably, S1 includes:

[0058] The task coordinator corresponding to any of the individual objects is utilized, and according to the scheduling task switching signal at the current moment and the individual feedback signal at the previous moment corresponding to any of the individual objects, a first coordination switching signal and a second coordination switching signal are generated.

[0059] Among them, the task coordinator generates the first coordinated switching signal s1 and the second coordinated switching signal s2 according to the change of the scheduling task switching signal, and calls the scheduling instruction to track the power secondary controller and the voltage and frequency secondary controller respectively to realize the controller switching when the task switching changes. Different tasks correspond to different secondary controllers, and there must be a jump when switching. The function of the task coordinator is to realize the smooth transition of the DG state when the task is switched.

[0060] It should be noted that the task coordinator outputs a coordinated switching signal constructed according to the task change. A transition time is set and a secondary control error function relationship is constructed. The weight change of the secondary controller corresponding to the previous task and the next task can be realized according to the switching signal. The two weighted sum values ​​are used as the secondary control during the transition time to prevent state jumps during task switching and realize smooth transition of the DG individual transient process during task switching.

[0061] Preferably, S2 includes:

[0062] The power secondary controller is tracked using the scheduling instruction corresponding to any individual object, and the power secondary control signal corresponding to any individual object is generated according to the first coordination switching signal corresponding to any individual object, the scheduling task switching signal and the neighbor status signal at the current moment, and the individual feedback signal at the previous moment.

[0063] Preferably, the step of generating a voltage-frequency secondary control signal corresponding to any individual object according to the power secondary control signal corresponding to any individual object, the second coordinated switching signal and the individual feedback signal at the previous moment in S3 includes:

[0064] The voltage-frequency secondary controller corresponding to any individual object is utilized, and according to the power secondary control signal corresponding to any individual object, the second coordinated switching signal and the individual feedback signal at the previous moment, a voltage-frequency secondary control signal corresponding to any individual object is generated.

[0065] Preferably, it also includes:

[0066] S01, receiving a neighbor status signal corresponding to any individual object at the current moment sent through the communication layer, and receiving a scheduling task switching signal corresponding to any individual object at the current moment generated by the energy management layer and sent through the communication layer.

[0067] 1) If Figure 2 As shown in the figure, the communication layer is composed of communication device hardware and software systems, and the information transmitted is of two categories: neighbor status signals, individual status signals, and scheduling task switching signals. Among them, the neighbor status signals and individual status signals are obtained by each sub-microgrid and DG individual based on the data acquisition system, and sent to the communication layer for transmission according to the communication topology. The scheduling task switching signal is issued by the energy management layer and is issued along the communication topology formed by the communication devices of the communication layer. In this way, the information transmitted by the communication layer to the individual controller in the DG individual layer is of two categories: one is the neighbor status signal and the individual status signal, and the other is the scheduling task switching signal.

[0068] 2) If Figure 2As shown in the figure, the energy management layer is mainly decided by the energy management system, which gives the dispatch task switching signal. When the building multi-energy microgrid system is in operation, the micro-sources, loads, and inverters in the microgrid are coordinated and controlled in response to the upper-level economic operation needs and dispatch task changes, and decision-making optimization and dispatch are performed to ensure that the MGC can meet the building energy-saving operation needs.

[0069] 3) When the building multi-energy microgrid system is in operation, the communication topology of the communication layer will actually change due to factors such as network congestion, transmission delay, system changes, etc.; the dispatching task switching signal will also correspond to various dispatching tasks and command changes of the power grid according to the status of the entire microgrid cluster (tripping, closing, heavy load switching, faults, maintenance and other actual operations).

[0070] In this embodiment, it should be noted that:

[0071] 1) Through the above-mentioned DG individual layer control scheme, the dual switching distributed secondary control protocol design and stability analysis under task switching changes are completed, solving the problem of smooth transition of task switching. Based on this, the technical solution of this embodiment can be oriented to: ① time-varying power command tracking; ② scheduling command switching changes; ③ communication topology switching changes; ④ sub-microgrid trajectory changes, etc.; to achieve the smooth collaborative control goal of scheduling tasks.

[0072] 2) The technical solution of this embodiment can achieve the following technical effects:

[0073] ① Realize high-quality power mutual assistance. Under the switching of dispatching task instructions, each sub-microgrid in the microgrid cluster system can realize smooth transition of power output and input switching and large-scale power regulation through coordinated control under dual switching of dispatching tasks and structural topology. Furthermore, under the control of secondary recovery of switching system model consistency, high-quality transient transition process is realized within each sub-microgrid and between sub-microgrids. At the same time, the active power and reactive power are evenly distributed according to the droop coefficient.

[0074] ② Improve the power quality of MGC. Compared with the operation of a single microgrid, the voltage and frequency of the common connection point of the multi-microgrid group must not only be maintained stable, but also the voltage and frequency of each sub-microgrid must be maintained stable. Through the design of the distributed secondary recovery controller of the switching system under the hierarchical control architecture of the cluster system, the voltage and frequency of the MGC can be stabilized within a limited time, and the voltage and frequency can be adjusted without any difference.

[0075] Figure 3 FIG. 2 is a schematic diagram showing a structure of an embodiment of a microgrid cluster system task switching smooth transition control system 200 provided by the present invention. Figure 3As shown, the system 200 includes: a plurality of individual controllers 210; each individual controller 210 controls a corresponding object in the microgrid cluster system; any individual controller 210 is used to:

[0076] Generate a first coordinated switching signal and a second coordinated switching signal based on a scheduling task switching signal at a current moment and an individual feedback signal at a previous moment corresponding to any individual object in the microgrid cluster system;

[0077] Generate a power secondary control signal corresponding to any individual object according to the first coordination switching signal corresponding to any individual object, the scheduling task switching signal and the neighbor status signal at the current moment, and the individual feedback signal at the previous moment;

[0078] According to the power secondary control signal corresponding to any individual object, the second coordinated switching signal and the individual feedback signal at the previous moment, a voltage frequency secondary control signal corresponding to any individual object is generated, so as to perform task switching smooth transition control on any individual object through the voltage frequency secondary control signal and the power secondary control signal corresponding to any individual object.

[0079] Preferably, any one of the individual controllers 210 is specifically used for:

[0080] The task coordinator corresponding to any of the individual objects is utilized, and according to the scheduling task switching signal at the current moment and the individual feedback signal at the previous moment corresponding to any of the individual objects, a first coordination switching signal and a second coordination switching signal are generated.

[0081] Preferably, any one of the individual controllers 210 is specifically used for:

[0082] The power secondary controller is tracked using the scheduling instruction corresponding to any individual object, and the power secondary control signal corresponding to any individual object is generated according to the first coordination switching signal corresponding to any individual object, the scheduling task switching signal and the neighbor status signal at the current moment, and the individual feedback signal at the previous moment.

[0083] Preferably, any one of the individual controllers 210 is specifically used for:

[0084] The voltage-frequency secondary controller corresponding to any individual object is utilized, and according to the power secondary control signal corresponding to any individual object, the second coordinated switching signal and the individual feedback signal at the previous moment, a voltage-frequency secondary control signal corresponding to any individual object is generated.

[0085] Preferably, it further comprises: a communication layer 220 and an energy management layer 230; any individual controller 210 is also used for:

[0086] Receive the neighbor status signal corresponding to any individual object at the current moment sent through the communication layer 220, and receive the scheduling task switching signal corresponding to any individual object at the current moment generated by the energy management layer 230 and sent through the communication layer 220.

[0087] The technical solution of this embodiment can realize smooth switching control of scheduling tasks, suppress state jumps, and ensure the robust stability of voltage and frequency finite time consistency.

[0088] The above-mentioned parameters and steps for each module to implement corresponding functions in the microgrid cluster system task switching smooth transition control system 200 of this embodiment can refer to the parameters and steps in the embodiment of the microgrid cluster system task switching smooth transition control method above, and will not be repeated here.

[0089] In the description provided herein, a large number of specific details are described. However, it is understood that embodiments of the present invention can be practiced without these specific details. Similarly, in order to simplify the present invention and help understand one or more of the various inventive aspects, in the above description of exemplary embodiments of the present invention, the various features of the embodiments of the present invention are sometimes grouped together into a single embodiment, figure, or description thereof. Wherein, the claims that follow the specific embodiment are hereby expressly incorporated into the specific embodiment, wherein each claim itself is a separate embodiment of the present invention.

[0090] It should be noted that the above embodiments illustrate the present invention rather than limit it, and that those skilled in the art may devise alternative embodiments without departing from the scope of the appended claims. In the claims, any reference symbol between brackets shall not be construed as a limitation on the claims. The word "comprising" does not exclude the presence of elements or steps not listed in the claims. The word "one" or "an" preceding an element does not exclude the presence of a plurality of such elements. The present invention may be implemented by means of hardware comprising a number of different elements and by means of a suitably programmed computer. In a unit claim enumerating a number of devices, several of these devices may be embodied by the same hardware item. The use of the words first, second, and third, etc. does not indicate any order. These words may be interpreted as names. The steps in the above embodiments, unless otherwise specified, should not be understood as limitations on the order of execution.

Claims

1. A method for smooth transition control of task switching of a microgrid cluster system, characterized in that: include: Generate a first coordinated switching signal and a second coordinated switching signal based on a scheduling task switching signal at a current moment and an individual feedback signal at a previous moment corresponding to any individual object in the microgrid cluster system; Generate a power secondary control signal corresponding to any individual object according to the first coordination switching signal corresponding to any individual object, the scheduling task switching signal and the neighbor status signal at the current moment, and the individual feedback signal at the previous moment; Generate a voltage-frequency secondary control signal corresponding to any individual object according to the power secondary control signal corresponding to any individual object, the second coordinated switching signal and the individual feedback signal at the previous moment, so as to perform task switching smooth transition control on any individual object through the voltage-frequency secondary control signal and the power secondary control signal corresponding to any individual object; The step of generating a first coordinated switching signal and a second coordinated switching signal based on a scheduling task switching signal at a current moment and an individual feedback signal at a previous moment corresponding to any individual object in the microgrid cluster system includes: Using the task coordinator corresponding to any of the individual objects, and according to the scheduling task switching signal at the current moment and the individual feedback signal at the previous moment corresponding to any of the individual objects, a first coordination switching signal and a second coordination switching signal are generated; The step of generating a power secondary control signal corresponding to any individual object according to the first coordinated switching signal corresponding to any individual object, the scheduling task switching signal and the neighbor status signal at the current moment, and the individual feedback signal at the previous moment includes: The power secondary controller is tracked using the scheduling instruction corresponding to any individual object, and the power secondary control signal corresponding to any individual object is generated according to the first coordination switching signal corresponding to any individual object, the scheduling task switching signal and the neighbor status signal at the current moment, and the individual feedback signal at the previous moment.

2. The microgrid cluster system task switching smooth transition control method according to claim 1 is characterized in that: The step of generating a voltage frequency secondary control signal corresponding to any individual object according to the power secondary control signal corresponding to any individual object, the second coordinated switching signal and the individual feedback signal at the previous moment comprises: The voltage-frequency secondary controller corresponding to any individual object is utilized, and according to the power secondary control signal corresponding to any individual object, the second coordinated switching signal and the individual feedback signal at the previous moment, a voltage-frequency secondary control signal corresponding to any individual object is generated.

3. The microgrid cluster system task switching smooth transition control method according to claim 1 or 2, characterized in that: Also includes: A neighbor status signal corresponding to any individual object at the current moment sent through the communication layer is received, and a scheduling task switching signal corresponding to any individual object at the current moment is received, which is generated by the energy management layer and sent through the communication layer.

4. A microgrid cluster system task switching smooth transition control system, characterized in that: include: Multiple individual controllers; Each individual controller controls a single object in the microgrid cluster system; any individual controller is used to: Generate a first coordinated switching signal and a second coordinated switching signal based on a scheduling task switching signal at a current moment and an individual feedback signal at a previous moment corresponding to any individual object in the microgrid cluster system; Generate a power secondary control signal corresponding to any individual object according to the first coordination switching signal corresponding to any individual object, the scheduling task switching signal and the neighbor status signal at the current moment, and the individual feedback signal at the previous moment; Generate a voltage-frequency secondary control signal corresponding to any individual object according to the power secondary control signal corresponding to any individual object, the second coordinated switching signal and the individual feedback signal at the previous moment, so as to perform task switching smooth transition control on any individual object through the voltage-frequency secondary control signal and the power secondary control signal corresponding to any individual object; Any of the individual controllers is specifically used for: Using the task coordinator corresponding to any of the individual objects, and according to the scheduling task switching signal at the current moment and the individual feedback signal at the previous moment corresponding to any of the individual objects, a first coordination switching signal and a second coordination switching signal are generated; Any of the individual controllers is specifically used for: The power secondary controller is tracked using the scheduling instruction corresponding to any individual object, and the power secondary control signal corresponding to any individual object is generated according to the first coordination switching signal corresponding to any individual object, the scheduling task switching signal and the neighbor status signal at the current moment, and the individual feedback signal at the previous moment.

5. The microgrid cluster system task switching smooth transition control system according to claim 4 is characterized in that: Any of the individual controllers is specifically used for: The voltage-frequency secondary controller corresponding to any individual object is utilized, and according to the power secondary control signal corresponding to any individual object, the second coordinated switching signal and the individual feedback signal at the previous moment, a voltage-frequency secondary control signal corresponding to any individual object is generated.

6. The microgrid cluster system task switching smooth transition control system according to claim 4 or 5, characterized in that: Also includes: Communication layer and energy management layer; any individual controller is also used for: A neighbor status signal corresponding to any individual object at the current moment sent through the communication layer is received, and a scheduling task switching signal corresponding to any individual object at the current moment is received, which is generated by the energy management layer and sent through the communication layer.

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