CN106786754A - Coordinated control device and system for distributed energy - Google Patents

Abstract

The invention provides a cooperative control device and a system of distributed energy sources, wherein the cooperative control device comprises: the first monitoring module is used for monitoring energy conversion control parameters of the distributed energy conversion control equipment in real time; the first evaluation module is used for evaluating the energy supply state of the distributed energy conversion control equipment according to the energy conversion control parameters; the second monitoring module is used for monitoring energy supply parameters and demand parameters of the power grid; the second evaluation module is used for evaluating a supply and demand balance relation between the electric energy demand of the power grid and the energy supply capacity of the distributed energy conversion control equipment; and the output control module is used for respectively outputting corresponding control signals to the distributed energy conversion control equipment and the power grid according to the energy supply state and the supply and demand balance relation. The invention can realize the substitution and conversion among various energy sources, give play to the comprehensive utilization advantage of the energy sources, integrally optimize the supply and the utilization of distributed energy sources and realize the low-carbon, energy-saving and environment-friendly optimized energy system architecture.

Description

Coordinated control device and system for distributed energy

technical field

The invention relates to the field of electric power, in particular to a distributed energy cooperative control device and system.

Background technique

The distributed energy system is a system that determines the unit configuration and capacity scale by optimizing resources, environment and economic benefits. It pursues the maximization of terminal energy utilization efficiency, adopts demand-responsive design and modular combination configuration, and can meet various needs of users. Energy demand, which can optimize and integrate resource allocation with supply and demand.

Distributed energy is the development trend of the future energy supply and use system. The management and scheduling of such a large number of distributed power supply capabilities of different scales is a new topic for power grid companies. At the same time, the development of energy substitution and conversion technology centered on electric energy will also create conditions for the substitution and conversion of different types of energy. However, the current distributed energy systems are generally independent and decentralized management, which is not conducive to improving energy supply efficiency.

Contents of the invention

In view of this, it is necessary to provide a distributed energy cooperative control device and system, which can realize the substitution and conversion of multiple energy sources, and coordinate the management of the conversion and control of multiple distributed energy sources, and give full play to the advantages of comprehensive energy utilization. Overall optimization of the supply and use of distributed energy.

The invention discloses a distributed energy cooperative control device, which includes:

The first monitoring module is used to connect the distributed energy conversion control equipment, and monitor the energy conversion control parameters of the distributed energy conversion control equipment in real time;

A first evaluation module, connected to the first monitoring module, for evaluating the energy supply status of the distributed energy conversion control equipment according to the energy conversion control parameters;

The second monitoring module is used to connect to the power grid and monitor the energy supply parameters and demand parameters of the power grid;

The second evaluation module is connected to the first monitoring module and the second monitoring module respectively, and is used to evaluate the electric energy demand and the energy conversion control parameter of the grid according to the energy supply parameter, the demand parameter and the energy conversion control parameter The supply-demand balance relationship between the energy supply capabilities of the distributed energy conversion control equipment; and

The output control module is connected to the first evaluation module and the second evaluation module respectively, and is also used to connect the distributed energy conversion control equipment and the power grid respectively, and the output control module is used to state and the supply-demand balance relationship, respectively output corresponding control signals to the distributed energy conversion control equipment and the grid.

In one of the embodiments, the first monitoring module includes:

The first monitoring unit is used to connect to the distributed energy conversion control equipment, and monitor the energy conversion control parameters of the distributed energy conversion control equipment in real time;

The communication unit is connected to the first monitoring unit and the first evaluation module respectively, and is used to output the energy conversion control parameters.

In one of the embodiments, the first monitoring unit includes a first transformer, a signal preprocessing subunit, an analog/digital conversion subunit, a filtering subunit and a first data processing subunit connected in sequence, wherein the first A transformer is used to connect the distributed energy conversion control equipment, and the first data processing subunit is connected to the communication unit.

In one of the embodiments, the cooperative control device also includes:

The man-machine interface is connected with the communication unit.

In one of the embodiments, the second monitoring module includes:

The second monitoring unit is used to connect to the power grid and monitor the energy supply parameters and demand parameters of the power grid;

A communication circuit, configured to transmit the energy supply parameters and demand parameters of the power grid to the second evaluation module.

In one of the embodiments, the second monitoring unit includes a second transformer, a remote control amplifier, a filter circuit, an analog-to-digital conversion circuit and a data processing circuit connected in sequence, wherein the second transformer is used to connect to the power grid, The data processing circuit is also connected to the remote control amplifier and the communication circuit respectively.

In one of the embodiments, the second monitoring unit includes two remote control amplifiers;

The second transformer includes a second current transformer and a second voltage transformer, the input terminals of the second current transformer and the second voltage transformer are respectively used to connect to the power grid, and the second current transformer The output ends of the transformer and the second voltage transformer are respectively connected to the filter circuit through a remote control amplifier.

The present invention also discloses a coordinated control system for distributed energy, which includes distributed energy conversion control equipment, a power grid, and the coordinated control device as described in any one of the above, wherein the distributed energy conversion control equipment is connected to the power grid, the first monitoring module of the cooperative control device is connected to the distributed energy conversion control equipment, the second monitoring module of the cooperative control device is connected to the power grid, and the output control modules of the cooperative control device are respectively connected to the Distributed energy conversion control equipment and the grid.

In one of the embodiments, the distributed energy conversion control equipment includes a sequentially connected energy conversion device, a DC bus, a grid-connected inverter, a filter, and an isolation transformer, wherein the isolation transformer is connected to the grid; the The grid-connected inverter and the isolation transformer are also respectively connected to the first monitoring module and the output control module.

In one of the embodiments, the distributed energy conversion control device further includes an energy storage battery, and the energy storage battery is respectively connected to the direct current bus and the first evaluation module.

The above distributed energy cooperative control device and system can give control or adjustment signals according to the supply-demand balance relationship between the distributed energy conversion control equipment and the power grid, which can not only realize the substitution and conversion of multiple energy sources, but also coordinate Manage the conversion and control of various distributed energy sources, give full play to the advantages of comprehensive energy utilization, optimize the supply and use of distributed energy sources as a whole, realize an optimized energy system architecture for low-carbon energy conservation and environmental protection, and meet future energy application needs.

Description of drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings that need to be used in the description of the embodiments or the prior art. Obviously, the accompanying drawings in the following description are only These are some embodiments of the present invention. Those skilled in the art can also obtain the drawings of other embodiments according to these drawings without creative work.

Fig. 1 is a schematic structural diagram of a distributed energy cooperative control device according to an embodiment;

Fig. 2 is a schematic structural diagram of a first monitoring module of a distributed energy cooperative control device according to an embodiment;

Fig. 3 is a schematic structural diagram of a second monitoring module of a distributed energy cooperative control device according to an embodiment;

Fig. 4 is a schematic structural diagram of a distributed energy cooperative control system according to an embodiment;

Fig. 5 is a schematic structural diagram of a distributed energy conversion control device according to an embodiment.

detailed description

In order to make the object, technical solution and advantages of the present invention more clear, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

In the description of the present invention, it should be understood that the terms "first" and "second" are used for description purposes only, and cannot be interpreted as indicating or implying relative importance or implicitly indicating the quantity of indicated technical features. Thus, the features defined as "first" and "second" may explicitly or implicitly include at least one of these features. In the description of the present invention, "plurality" means at least two, such as two, three, etc., unless otherwise specifically defined.

A coordinated control device for distributed energy resources according to an embodiment of the present invention will be described below with reference to the accompanying drawings. For example, the distributed energy cooperative control device according to an embodiment of the present invention includes a first monitoring module, a first evaluation module, a second monitoring module, a second evaluation module and an output control module, wherein: the first monitoring module is used to connect distributed The energy conversion control equipment is used to monitor the energy conversion control parameters of the distributed energy conversion control equipment in real time; the first evaluation module is connected to the first monitoring module, and is used to evaluate the energy supply status of the distributed energy conversion control equipment according to the energy conversion control parameters; The second monitoring module is used to connect to the power grid, and monitor the energy supply parameters and demand parameters of the power grid; the second evaluation module is respectively connected to the first monitoring module and the second monitoring module, and is used to control parameters according to the energy supply parameters, demand parameters and energy conversion, Evaluate the supply-demand balance relationship between the power demand of the grid and the energy supply capacity of the distributed energy conversion control equipment; the output control module is respectively connected to the first evaluation module and the second evaluation module, and the output control module is also used to connect the distributed energy conversion The control equipment and the power grid, the output control module is used to output corresponding control signals to the distributed energy conversion control equipment and the power grid according to the energy supply status and the balance between supply and demand.

In order to further illustrate the above-mentioned collaborative control device for distributed energy, for example, as shown in FIG. Output control module 150 .

The first monitoring module 110 is used for connecting distributed energy conversion control devices, for example, the first monitoring module is used for connecting one or more distributed energy conversion control devices. The first monitoring module is also connected to the first evaluation module and the output control module respectively, the first evaluation module is also connected to the second evaluation module and the output control module respectively, the second monitoring module is used to connect to the power grid, and the second monitoring module also passes the second evaluation The module is connected to the output control module.

In this embodiment, the first monitoring module is used to monitor the energy conversion control parameters of the distributed energy conversion control equipment in real time. For example, the input end of the first monitoring module is connected to the output end of the distributed energy conversion control device to monitor various measurement parameters of the distributed energy conversion control device in real time. For example, the first monitoring module includes a transformer, through which the output current, output voltage, active power, reactive power, power factor, frequency, solar radiation value, and geothermal energy temperature of the distributed energy conversion control equipment are monitored in real time. Measurement parameters. The first monitoring module also performs analog-to-digital conversion processing, filtering processing, and calculation processing on the above-mentioned various measurement parameters, and obtains various calculation parameters including harmonics, frequency fluctuations, voltage fluctuations, and power generation. Among them, the distributed energy conversion control equipment The energy conversion control parameters include the above-mentioned measurement parameters and calculation parameters.

In one embodiment, as shown in FIG. 2, the first monitoring module 110 includes a first monitoring unit 111 and a communication unit 112, wherein the first monitoring unit 111 is used to connect distributed energy conversion control equipment to monitor distributed energy resources in real time. The energy conversion control parameters of the conversion control equipment; the communication unit 112 is respectively connected to the first monitoring unit and the first evaluation module for outputting the energy conversion control parameters. For example, the communication unit 112 outputs the energy conversion control parameters to the first evaluation module. For another example, the communication unit 112 also outputs the energy conversion control parameters to the control center of the region in the form of wired communication or wireless communication through the Internet or the power communication network, and the server of the control center performs processing. For example, wired communication methods include communication methods based on network cables or optical fibers, and wireless communication methods include communication methods based on mobile data networks or WiFi.

In one embodiment, as shown in FIG. 2, the first monitoring unit 111 includes a sequentially connected first transformer 111a, a signal preprocessing subunit 111b, an analog/digital conversion subunit 111c, a filtering subunit 111d, and a first data The processing subunit 111e, wherein the first mutual inductor is used to connect to the distributed energy conversion control equipment, and the first data processing subunit is connected to the communication unit. For example, the first transformer 111a includes a first voltage transformer and a first current transformer, which are respectively used to monitor the output voltage and output current of the distributed energy conversion control device in real time. The voltage and current signals flow into the voltage and current transformer, and the voltage, current, active power and reactive power of the distributed energy conversion control equipment are obtained through the signal preprocessing subunit, the analog/digital conversion subunit, the filtering subunit, and the first data processing subunit , power factor, frequency, temperature and other measurement parameters, as well as calculation parameters such as harmonics, frequency fluctuations, voltage fluctuations, and power generation.

The first evaluation module 120 is used to evaluate the energy supply state of the distributed energy conversion control equipment according to the energy conversion control parameters. For example, the first evaluation module evaluates the energy supply status of the distributed energy conversion control equipment according to the power factor of the distributed energy conversion control equipment, the ratio of active power and reactive power to the rated value, and voltage fluctuations.

Among them, the first evaluation module is specifically used to evaluate whether the distributed energy conversion control equipment meets the conditions for stable economic operation, or in other words, evaluates whether the distributed energy conversion control equipment meets the conditions for connecting to the grid. For example, the first evaluation module compares the above-mentioned energy conversion control parameters with pre-stored standard parameters to evaluate whether the above-mentioned distributed energy conversion control equipment meets the conditions for stable economic operation and whether it is allowed to be connected to the power grid. Wherein, under the condition that the distributed energy conversion control equipment meets the condition of stable economic operation, the first assessment module is also used to assess the control range of the distributed energy conversion control equipment.

In one embodiment, for a distributed energy conversion control device with an energy storage battery, the first evaluation module also evaluates its energy storage state. For example, energy storage is generally dominated by battery energy storage, and the evaluation indicators of energy storage status include storage capacity, battery voltage range, battery voltage standard deviation coefficient, battery temperature range, SOE (State Of Energy, based on energy state) range , the evaluation results include storage and output capacity, single battery failure conditions, battery voltage consistency, battery performance changes, and battery string energy distribution changes. Among them, the evaluation result of the energy storage state not only provides the available energy storage capacity information to the output control module, but also qualitatively locates the fault, which is convenient for maintenance.

The second monitoring module 130 is used for monitoring energy supply parameters and demand parameters of the grid. In one embodiment, the distributed power source is located at the power distribution end, and the area it belongs to is not large, so the above-mentioned power grid is a small power distribution network or a micro-grid. At this time, the injected power of the large power grid is the grid energy supply index, the node power is the main index of demand, and other indexes are constraints. In other words, the above-mentioned energy supply parameters include the injected power of the feeder line connecting the power grid to the large power grid; the above-mentioned demand parameters include the power and voltage of each feeder switch node of the power grid.

In one embodiment, in addition to monitoring energy supply parameters and demand parameters, the second monitoring module is also used to monitor the switching status of each feeder switch node of the power grid.

In one embodiment, the above-mentioned energy supply parameters and demand parameters of the power grid are provided by a monitoring system of the power grid itself. For example, the second monitoring module 130 receives energy supply parameters and demand parameters provided by the connected grid.

In one embodiment, as shown in FIG. 3 , the second monitoring module 130 includes a second monitoring unit 131 and a communication circuit 132, wherein the second monitoring unit 131 is used to connect to the grid and monitor the energy supply parameters and demand parameters of the grid; The circuit 132 is used to transmit the energy supply parameters and demand parameters of the power grid to the second evaluation module. For example, the second monitoring unit 131 includes a second transformer 131a, a remote control amplifier 131b, a filter circuit 131c, an analog-to-digital conversion circuit 131d, and a data processing circuit 131e connected in sequence, wherein the second transformer is used to connect to the power grid, and the data processing circuit also Connect the remote control amplifier and communication circuit respectively. For example, the second monitoring unit includes two remote control amplifiers; the second transformer includes a second current transformer and a second voltage transformer, and the input terminals of the second current transformer and the second voltage transformer are respectively connected to the grid, and the second current transformer The output ends of the transformer and the second potential transformer are respectively connected to the filter circuit through a remote control amplifier.

Specifically, the three-phase voltage and three-phase current signals to be monitored are obtained by the second current transformer and the second voltage transformer, and the three-phase voltage signals and three-phase current signals are respectively passed through a remote control amplifier, a filter circuit, and a digital-to-analog conversion circuit. , and then through the control and data processing circuit, the energy supply parameters and demand parameters such as the injected power of the feeder connected to the large power grid, the power of each feeder switch node of the distribution network, the deviation of the supply voltage and the frequency deviation, etc. are obtained, and these parameters are transmitted to the second evaluation through the communication circuit module.

In one embodiment, the second monitoring module 130 further includes a waveform conversion circuit (not shown in the figure), and two ends of the waveform conversion circuit are respectively connected to a remote control amplifier and the above-mentioned data processing circuit. For example, the input terminal of the waveform conversion circuit is connected to a remote control amplifier connected to the voltage transformer, and the output terminal of the waveform conversion circuit is connected to the above-mentioned data processing circuit. The waveform conversion circuit is used to sample one-phase voltage signal in the three-phase voltage, and track the power frequency of the power line in real time.

The second evaluation module 140 is used to evaluate the supply-demand balance relationship between the electric energy demand of the grid and the energy supply capability of the distributed energy conversion control equipment according to the energy supply parameters, demand parameters and energy conversion control parameters.

For example, the second evaluation module 140 is also used to determine the distributed energy supply system according to the time-of-use electricity price provided by the power market information center, the distributed energy cost and energy storage cost, the energy supply capacity of the distributed energy conversion control equipment, and the load forecast curve. The proportion of energy. Among them, the energy supply capacity of the distributed energy conversion control equipment is reflected by the ultra-short-term distributed energy power prediction value. For example, collect local meteorological data and combine with the collection of historical meteorological data to predict the change rate of the daily power curve of distributed energy conversion control equipment, so as to obtain the ultra-short-term distributed energy power forecast value, that is, the energy supply capacity of distributed energy.

In one embodiment, the real-time scheduling plan given by the ultra-short-term load forecast and generated power forecast is used to provide reference for the output control module, for example, the second evaluation module 140 is also used for grid state assessment, such as calculating the power flow through monitoring data, And through the stability calculation under the topology state of different modes, it can be judged whether the output of the distributed power conversion control device can be adjusted, and whether the state of some feeder switches can be changed to optimize the topology. At this time, the first evaluation module and the second evaluation module are equivalent to the initialization of the control output control module.

The output control module 150 is used to output corresponding control signals to the distributed energy conversion control equipment and the power grid respectively according to the energy supply state and the supply-demand balance relationship, and is used to control the physical quantity output by the distributed energy conversion control equipment and control the feeders in the power grid The state of the switch, thereby adjusting the energy supply ratio between the distributed energy conversion control equipment and the large grid used to inject power into the above grid. For example, the distributed energy conversion control device adjusts the physical quantity output by itself according to the control signal, and for another example, the power grid adjusts the state of the feeder switch according to the control signal.

For example, the output control module 150 includes a second data processing subunit and a signal output subunit, wherein the second data processing subunit is connected to the first evaluation module, the second evaluation module and the output subunit respectively, and the output subunit is connected to the above-mentioned power grid The controllers of each feeder switch and distributed energy conversion control equipment are connected. The second data processing sub-unit analyzes and gives a control decision in a time-divided global optimization manner, and the output sub-unit outputs a corresponding control signal according to the control decision.

Specifically, the second data processing subunit analyzes and processes the aforementioned energy supply state and supply-demand balance relationship according to the pre-stored objective function and constraint conditions. For example, the objective function is used to minimize the total cost of the above-mentioned power grid within a given time interval, where the total cost of the above-mentioned power grid is equal to the value of the sum of power purchase cost and network loss minus photovoltaic revenue and energy storage revenue. Constraints include power balance constraints, distributed power active and reactive power constraints, reactive power compensation constraints, energy storage upper and lower limit constraints, energy storage charge and discharge balance constraints, energy storage charge and discharge times constraints, network node voltage constraints and distribution network topology constraints at least one of. According to the above objective function and constraint conditions, the pre-stored particle swarm algorithm (PSO), wolf pack algorithm (WPA) and other intelligent algorithms are used to solve the problem, and the solution is the optimization result. The difference between the optimization result and the real-time state is taken to give the adjustment value of each distributed energy conversion control device and give the corresponding control signal.

For example, according to the power injected by the optimized feeder, if the sum is small, select the feeder switch with a high power purchase price and give a control signal to disconnect it. Under the constraint conditions, the distributed energy resources can be used as much as possible, and the large power grid can be reduced. Inject power. As an implementation, the control signal is output to each feeder switch of the power grid and the controller of each distributed power supply through the existing power communication network.

The above distributed energy cooperative control device can give control or adjustment signals according to the supply-demand balance between the distributed energy conversion control equipment and the power grid. Transformation and control of distributed energy, give full play to the advantages of comprehensive utilization of energy, optimize the supply and use of distributed energy as a whole, realize the optimized energy system architecture of low-carbon energy saving and environmental protection, and meet the needs of future energy applications.

In one embodiment, the above-mentioned coordinated control device for distributed energy sources further includes a memory, the memory is connected to the first monitoring module, for example, the memory is connected to the communication unit in the first monitoring module, and can store the energy of the distributed energy conversion control equipment Conversion control parameters. As another example, the memory is also connected with the second monitoring module, the first evaluation module, the second evaluation module and/or the output control module, so as to store the energy supply parameters and demand parameters of the grid, the evaluation results of the first evaluation module, and the second evaluation module. Evaluation results of modules, control signals and/or control history of output control modules, etc.

In one embodiment, the distributed energy cooperative control device further includes a man-machine interface connected to the first monitoring module, for example, the man-machine interface is connected to the communication unit in the first monitoring module. Among them, the human-machine interface is also used to connect input/output devices such as keyboards and monitors to receive information, commands, etc. input from external input devices, or to output the above-mentioned energy conversion control parameters; the communication unit is also used to transfer information input from external input devices , commands, etc. are transmitted to other modules, so that the distributed energy cooperative control device performs settings, outputs, etc. according to the information and commands input by external input devices.

The embodiment of the present invention also provides a collaborative control system for distributed energy. As shown in FIG. 100 is a coordinated control device for distributed energy resources according to any one of the above-mentioned embodiments. Specifically, the distributed energy conversion control equipment is connected to the power grid, the first monitoring module of the cooperative control device is connected to the distributed energy conversion control device, the second monitoring module of the cooperative control device is connected to the power grid, and the output control modules of the cooperative control device are respectively connected to the distributed power grid. Energy conversion control equipment and power grid. For example, the aforementioned grid is a small distribution grid or a microgrid.

In one embodiment, as shown in FIG. 5 , the above-mentioned distributed energy conversion control device 200 includes an energy conversion device 210, a DC bus 220, a grid-connected inverter 230, a filter 240, and an isolation transformer 250 connected in sequence, wherein the The isolation transformer is connected to the power grid; the grid-connected inverter and the isolation transformer are also respectively connected to the first monitoring module and the output control module. Wherein, the energy conversion device 210 is used for converting distributed energy such as solar energy, wind energy, thermal energy, biomass energy, etc. into electrical energy, for example, into direct current electrical energy. DC power is transmitted to the grid or local loads through DC busbars, grid-connected inverters, filters and isolation transformers.

In one embodiment, the distributed energy conversion control device further includes an energy storage battery, and the energy storage battery is respectively connected to the direct current bus and the first evaluation module. In this way, the electric energy obtained by the energy conversion device 210 is transmitted to the energy storage battery through the DC bus, stored by the energy storage battery, and the energy storage state of the energy storage battery is evaluated by the first evaluation module.

In one embodiment, the distributed energy conversion control device further includes a storage circuit, an output regulation circuit and several protection circuits, wherein the storage circuit is used to store parameters such as voltage and current; the output regulation circuit is used to regulate the distributed energy conversion control device The output physical quantity; several protection circuits, such as at least one of a short circuit protection circuit, a fan runaway protection circuit, and a photovoltaic overcurrent protection circuit.

The above-mentioned distributed energy collaborative control system can give control or adjustment signals according to the supply-demand balance between the distributed energy conversion control equipment and the power grid. Transformation and control of distributed energy, give full play to the advantages of comprehensive utilization of energy, optimize the supply and use of distributed energy as a whole, realize the optimized energy system architecture of low-carbon energy saving and environmental protection, and meet the needs of future energy applications.

The technical features of the above-mentioned embodiments can be combined arbitrarily. To make the description concise, all possible combinations of the technical features in the above-mentioned embodiments are not described. However, as long as there is no contradiction in the combination of these technical features, should be considered as within the scope of this specification.

The above-mentioned embodiments only express several implementation modes of the present invention, and the descriptions thereof are relatively specific and detailed, but should not be construed as limiting the patent scope of the invention. It should be noted that those skilled in the art can make several modifications and improvements without departing from the concept of the present invention, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the patent for the present invention should be based on the appended claims.

Claims (10)

1. A collaborative control device for distributed energy, characterized in that it comprises: The first monitoring module is used to connect the distributed energy conversion control equipment, and monitor the energy conversion control parameters of the distributed energy conversion control equipment in real time; A first evaluation module, connected to the first monitoring module, for evaluating the energy supply status of the distributed energy conversion control equipment according to the energy conversion control parameters; The second monitoring module is used to connect to the power grid and monitor the energy supply parameters and demand parameters of the power grid; The second evaluation module is connected to the first monitoring module and the second monitoring module respectively, and is used to evaluate the electric energy demand and the energy conversion control parameter of the grid according to the energy supply parameter, the demand parameter and the energy conversion control parameter The supply-demand balance relationship between the energy supply capabilities of the distributed energy conversion control equipment; and The output control module is connected to the first evaluation module and the second evaluation module respectively, and is also used to connect the distributed energy conversion control equipment and the power grid respectively, and the output control module is used to state and the supply-demand balance relationship, respectively output corresponding control signals to the distributed energy conversion control equipment and the grid. 2. The cooperative control device according to claim 1, wherein the first monitoring module comprises: The first monitoring unit is used to connect to the distributed energy conversion control equipment, and monitor the energy conversion control parameters of the distributed energy conversion control equipment in real time; The communication unit is connected to the first monitoring unit and the first evaluation module respectively, and is used to output the energy conversion control parameters. 3. The cooperative control device according to claim 2, wherein the first monitoring unit comprises a sequentially connected first transformer, a signal preprocessing subunit, an analog/digital conversion subunit, a filtering subunit, and a first A data processing subunit, wherein the first transformer is used to connect to the distributed energy conversion control equipment, and the first data processing subunit is connected to the communication unit. 4. The coordinated control device according to claim 2, wherein the coordinated control device further comprises: The man-machine interface is connected with the communication unit. 5. The cooperative control device according to claim 1, wherein the second monitoring module comprises: The second monitoring unit is used to connect to the power grid and monitor the energy supply parameters and demand parameters of the power grid; A communication circuit, configured to transmit the energy supply parameters and demand parameters of the power grid to the second evaluation module. 6. The cooperative control device as claimed in claim 5, wherein the second monitoring unit comprises a sequentially connected second transformer, a remote control amplifier, a filter circuit, an analog-to-digital conversion circuit, and a data processing circuit, wherein The second transformer is used to connect to the power grid, and the data processing circuit is also connected to the remote control amplifier and the communication circuit respectively. 7. The coordinated control device according to claim 6, wherein the second monitoring unit comprises two remote control amplifiers; The second transformer includes a second current transformer and a second voltage transformer, the input ends of the second current transformer and the second voltage transformer are respectively used to connect to the power grid, and the second current transformer The output ends of the transformer and the second voltage transformer are respectively connected to the filter circuit through a remote control amplifier. 8. A distributed energy collaborative control system, characterized in that it includes distributed energy conversion control equipment, a power grid, and the coordinated control device according to any one of claims 1 to 7, wherein the distributed energy conversion The control equipment is connected to the power grid, the first monitoring module of the cooperative control device is connected to the distributed energy conversion control device, the second monitoring module of the cooperative control device is connected to the power grid, and the output control of the cooperative control device The modules are respectively connected to the distributed energy conversion control equipment and the grid. 9. The cooperative control system according to claim 8, wherein the distributed energy conversion control equipment includes sequentially connected energy conversion devices, DC busbars, grid-connected inverters, filters, and isolation transformers, wherein the The isolation transformer is connected to the power grid; the grid-connected inverter and the isolation transformer are also respectively connected to the first monitoring module and the output control module. 10. The cooperative control system according to claim 9, wherein the distributed energy conversion control device further comprises an energy storage battery, and the energy storage battery is respectively connected to the DC bus and the first evaluation module .