Comprehensive treatment control method, device and equipment based on storage and consumption integrated device

Abstract

The invention relates to a comprehensive treatment control method, device and equipment based on a storage and consumption integrated device, which are applied to the storage and consumption integrated device, and the method comprises the following steps: obtaining a control function and a control parameter of the storage and consumption integrated device; controlling the operation of the storage and consumption integrated device according to the control function and the control parameter; if the control function is damping control, the control parameter is oscillation energy; if the control function is power grid frequency adjustment, the control parameter is an active frequency modulation coefficient; and if the control function is inertia response control, the control parameter is inertia response active power. According to the method, the operation of the energy storage and consumption integrated device is controlled by acquiring the control function and the control parameter, and when the converter of the energy storage and consumption integrated device absorbs energy, the energy consumption element is put into use to absorb energy so as to maintain the voltage stability of the energy storage element in the energy consumption mode, thereby avoiding the continuous charging of the energy storage element in the energy consumption mode, and improving the energy utilization rate. And the resource utilization rate and the voltage utilization rate of the energy storage element in the energy storage and consumption integrated device are improved.

Description

Technical Field

[0001] The present application relates to the field of converter control technology, and in particular to a comprehensive management control method, device and equipment based on a storage and consumption integrated device. Background Art

[0002] With the development of new energy, and the subsequent rapid development of new power systems, the power grid has undergone and will continue to undergo profound changes. With the increasing proportion of new energy and power electronics, the power system is gradually transitioning to a "double-high" phase. The composition and characteristics of the power system have undergone profound changes. In addition to traditional issues such as stability, power flow control, and voltage control, it faces many new challenges: First, with the integration of large-scale new energy, energy storage, and other power electronics, the proportion of synchronous generator installed capacity in the power system continues to decline, and the system is developing in the direction of low inertia and low damping. This has seriously reduced the power system's regulation capacity, insufficient anti-disturbance capabilities, and greater pressure on safe and stable operation. Second, with the increasing proportion of renewable energy generation and the long-distance transmission of large-scale renewable energy generation via high-voltage direct current transmission, energy balance on multiple time scales is also facing new and significant challenges.

[0003] High-power power electronics have become an important tool for improving power system stability, power flow control, and oscillation suppression. For example, flexible AC transmission technology based on high-power power electronics has played a significant role in enhancing grid stability and transmission capacity. For new power systems characterized by high power consumption and high efficiency, power electronics will continue to be a key tool for addressing these challenges. However, existing power electronics devices are typically limited to a single or limited set of functions. In new power systems, various problems often arise simultaneously or in cascades, with complex interactions, necessitating comprehensive management. By incorporating energy storage components such as supercapacitors into existing high-power power electronics (such as static synchronous compensators (STATCOMs) and static VAR generators (SVGs), multiple functions can be integrated simultaneously, including reactive power support, voltage stabilization, and energy balance. Compared to traditional high-power power electronics, devices incorporating energy storage components such as supercapacitors offer significant advantages in terms of investment, footprint, and efficiency.

[0004] To meet the grid's active power regulation needs, supercapacitors must be able to absorb the grid's active power for short periods of time. Therefore, in practical applications, the normal operating voltage of supercapacitors is generally set at 0.7pu. This low voltage utilization rate only utilizes about half of the supercapacitor's energy storage capacity. Supercapacitors require advanced and expensive materials such as activated carbon, carbon nanotubes, or graphene, resulting in high costs. This low voltage utilization rate results in significant waste. Summary of the Invention

[0005] The present application provides a comprehensive management control method, device and equipment based on an integrated storage and consumption device, which is used to solve the technical problem that the control method of the existing converter continuously charges the supercapacitor in the energy consumption mode, resulting in low voltage utilization of the supercapacitor and waste of resources.

[0006] In order to achieve the above objectives, this application provides the following technical solutions:

[0007] On the one hand, a comprehensive management and control method based on a storage-consumption integrated device is provided, which is applied to the storage-consumption integrated device. The comprehensive management and control method includes the following steps:

[0008] Acquiring a control function of the integrated storage and consumption device and a control parameter corresponding to the control function;

[0009] controlling the operation of the storage-consumption integrated device according to the control function and the control parameters;

[0010] Among them, if the control function is damping control, the control parameter is oscillation energy; if the control function is grid frequency regulation, the control parameter is active frequency regulation coefficient; if the control function is inertia response control, the control parameter is inertia response active power.

[0011] Preferably, controlling the operation of the storage-consumption integrated device according to the control function and the control parameters includes:

[0012] If the control function is damping control, obtain the initial power data output by the integrated storage and consumption device:

[0013] If the initial power data is greater than zero, the integrated storage and consumption device is controlled to operate in an energy supply mode according to the oscillation energy, so that the integrated storage and consumption device releases active power to suppress grid frequency oscillation;

[0014] If the initial power data is less than zero, the integrated storage and consumption device is controlled to operate in the energy consumption mode first according to the oscillation energy, and the power update data and oscillation update energy output by the integrated storage and consumption device are obtained in real time until the power update data is greater than zero, and then the integrated storage and consumption device is controlled to operate in the energy supply mode again according to the oscillation update energy, so that the integrated storage and consumption device absorbs active power to suppress the frequency oscillation of the power grid.

[0015] Preferably, controlling the operation of the storage-consumption integrated device according to the control function and the control parameters includes:

[0016] If the control function is grid frequency regulation, obtain grid frequency data of the integrated storage and consumption device:

[0017] If the grid frequency data is greater than a first set frequency threshold, controlling the integrated storage and consumption device to operate in an energy consumption mode according to the active frequency regulation coefficient, so that the integrated storage and consumption device absorbs active power to regulate the grid frequency;

[0018] If the grid frequency data is less than a second set frequency threshold, the integrated storage and consumption device is controlled to operate in an energy supply mode according to the active frequency regulation coefficient, so that the integrated storage and consumption device releases active power to adjust the grid frequency.

[0019] Preferably, controlling the operation of the storage-consumption integrated device according to the control function and the control parameters includes:

[0020] If the control function is inertia response control, obtaining active power data output by the integrated storage and consumption device;

[0021] If the active power data is greater than zero, controlling the storage and consumption integrated device to operate in a functional mode according to the inertia response active power, so that the storage and consumption integrated device releases active power to suppress changes in the grid frequency;

[0022] If the active power data is less than zero, the integrated storage and consumption device is controlled to operate in an energy consumption mode according to the active frequency modulation coefficient, so that the integrated storage and consumption device absorbs active power to suppress changes in grid frequency.

[0023] Preferably, obtaining the control function of the storage-consumption integrated device includes:

[0024] Obtaining grid frequency data, frequency change rate data, and grid frequency oscillation amplitude of the integrated storage and consumption device;

[0025] Calculating based on the grid frequency data and the set frequency threshold to obtain a frequency deviation; calculating based on the frequency deviation and the frequency change rate data to obtain frequency data;

[0026] If the grid frequency oscillation amplitude is greater than the frequency oscillation amplitude setting value, the control function is damping control;

[0027] If the frequency deviation is greater than the frequency deviation set value, the control function is grid frequency regulation:

[0028] If the frequency change rate data is greater than the frequency change rate setting value and the frequency data is greater than zero, the control function is inertia response control.

[0029] Preferably, obtaining the control parameter corresponding to the control function includes:

[0030] Obtaining the rated active power, active power change, inertia response time constant, rated frequency and frequency change of the integrated storage and consumption device;

[0031] Calculating the oscillation energy based on the active power change and the frequency change;

[0032] The active frequency modulation coefficient is obtained by calculating according to the rated active power, the active power change, the rated frequency and the frequency change;

[0033] The inertia response active power is obtained by calculation according to the rated active power, the inertia response time constant and the rated frequency.

[0034] On the other hand, a comprehensive management control device based on a storage and consumption integrated device is provided, comprising a data acquisition module and a control execution module;

[0035] The data acquisition module is used to obtain the control function of the storage and consumption integrated device and the control parameters corresponding to the control function;

[0036] The control execution module is used to control the operation of the storage and consumption integrated device according to the control function and the control parameters;

[0037] Among them, if the control function is damping control, the control parameter is oscillation energy; if the control function is grid frequency regulation, the control parameter is active frequency regulation coefficient; if the control function is inertia response control, the control parameter is inertia response active power.

[0038] Preferably, the control execution module includes a first control submodule, a second control submodule and a third control submodule;

[0039] The first control submodule is configured to obtain initial power data output by the integrated storage and consumption device according to the damping control control function; if the initial power data is greater than zero, control the integrated storage and consumption device to operate in an energy supply mode according to the oscillation energy, so that the integrated storage and consumption device releases active power to suppress grid frequency oscillations; if the initial power data is greater than zero, control the integrated storage and consumption device to operate in an energy supply mode according to the oscillation energy, so that the integrated storage and consumption device releases active power to suppress grid frequency oscillations;

[0040] The second control submodule is configured to obtain grid frequency data of the integrated storage and consumption device according to the control function for grid frequency regulation; if the grid frequency data is greater than a first set frequency threshold, control the integrated storage and consumption device to operate in an energy consumption mode according to the active frequency modulation coefficient, so that the integrated storage and consumption device absorbs active power to regulate the grid frequency; if the grid frequency data is less than a second set frequency threshold, control the integrated storage and consumption device to operate in an energy supply mode according to the active frequency modulation coefficient, so that the integrated storage and consumption device releases active power to regulate the grid frequency;

[0041] The third control submodule is configured to obtain active power data output by the integrated storage and consumption device according to inertia response control as the control function; if the active power data is greater than zero, control the integrated storage and consumption device to operate in a functional mode according to the inertia response active power, so that the integrated storage and consumption device releases active power to suppress changes in the grid frequency; if the active power data is less than zero, control the integrated storage and consumption device to operate in an energy consumption mode according to the active frequency modulation coefficient, so that the integrated storage and consumption device absorbs active power to suppress changes in the grid frequency.

[0042] Preferably, the data acquisition module is also used to obtain the grid frequency data, frequency change rate data and grid frequency oscillation amplitude of the integrated storage and consumption device; calculate based on the grid frequency data and the set frequency threshold to obtain the frequency deviation; calculate based on the frequency deviation and the frequency change rate data to obtain the frequency data; if the grid frequency oscillation amplitude is greater than the frequency oscillation amplitude setting value, the control function is damping control; if the frequency deviation is greater than the frequency deviation setting value, the control function is grid frequency regulation; if the frequency change rate data is greater than the frequency change rate setting value and the frequency data is greater than zero, the control function is inertia response control.

[0043] In another aspect, a terminal device is provided, comprising a processor and a memory;

[0044] The memory is used to store program code and transmit the program code to the processor;

[0045] The processor is used to execute the above-mentioned comprehensive management and control method based on the storage and consumption integrated device according to the instructions in the program code.

[0046] The comprehensive management and control method, device, and equipment based on the integrated storage and consumption device are applied to the integrated storage and consumption device. The comprehensive management and control method includes obtaining the control function of the integrated storage and consumption device and the control parameters corresponding to the control function; controlling the operation of the integrated storage and consumption device according to the control function and the control parameters; wherein, if the control function is damping control, the control parameter is the oscillation energy; if the control function is grid frequency regulation, the control parameter is the active frequency modulation coefficient; if the control function is inertia response control, the control parameter is the inertia response active power.

[0047] It can be seen from the above technical solution that the present application has the following advantages: the comprehensive management and control method based on the storage and consumption integrated device controls the operation of the storage and consumption integrated device by obtaining control functions and control parameters. When the converter of the storage and consumption integrated device absorbs energy, the energy-consuming element is put into use to absorb energy so as to maintain the voltage stability of the energy storage element in the energy consumption mode, thereby avoiding continuous charging of the energy storage element in the energy consumption mode, that is, the energy storage element does not need to reserve the ability to absorb energy, thereby improving the resource utilization and voltage utilization of the energy storage element in the storage and consumption integrated device, and solving the technical problem that the existing converter control method continuously charges the supercapacitor in the energy consumption mode, resulting in low voltage utilization and waste of resources of the supercapacitor.

[0048] The comprehensive management control device based on the integrated storage and consumption device uses a data acquisition module and a control execution module to realize that when the converter of the integrated storage and consumption device absorbs energy, the energy-consuming element is put into use to absorb energy, so as to maintain the voltage stability of the energy storage element in the energy consumption mode, thereby avoiding continuous charging of the energy storage element in the energy consumption mode, that is, the energy storage element does not need to reserve the ability to absorb energy, thereby improving the resource utilization and voltage utilization of the energy storage element in the integrated storage and consumption device. BRIEF DESCRIPTION OF THE DRAWINGS

[0049] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following is a brief introduction to the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.

[0050] Figure 1 This is a flowchart of the steps of the comprehensive management control method based on the storage and consumption integrated device according to the embodiment of the present application;

[0051] Figure 2 This is a circuit diagram of the storage-consumption integrated device in the comprehensive management and control method based on the storage-consumption integrated device described in an embodiment of the present application;

[0052] Figure 3This is a schematic diagram of a power curve for damping suppression in the comprehensive management and control method based on the storage and consumption integrated device according to an embodiment of the present application;

[0053] Figure 4 This is a schematic diagram of a power curve for grid frequency regulation in the comprehensive management and control method based on the storage and consumption integrated device according to an embodiment of the present application;

[0054] Figure 5 This is a schematic diagram of a power curve for inertia response control in the comprehensive management control method based on the storage and consumption integrated device according to an embodiment of the present application;

[0055] Figure 6 This is a schematic diagram of the framework of the comprehensive management control device based on the storage and consumption integrated device according to the embodiment of the present application;

[0056] Figure 7 This is a schematic diagram of the terminal device described in an embodiment of the present application. DETAILED DESCRIPTION

[0057] In order to make the purpose, features, and advantages of the invention of this application more obvious and easy to understand, the technical solutions in the embodiments of this application will be clearly and completely described below in conjunction with the drawings in the embodiments of this application. Obviously, the embodiments described below are only part of the embodiments of this application, not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of this application.

[0058] In the description of the embodiments of the present application, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of the embodiments of the present application, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0059] In the embodiments of the present application, unless otherwise expressly specified or limited, the terms "installed," "connected," "connected," "fixed," etc. should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integration; mechanical connections, electrical connections; direct connections, or indirect connections through an intermediate medium; internal connections between two components, or interactions between two components. Those skilled in the art can understand the specific meanings of the above terms in the embodiments of the present application based on specific circumstances.

[0060] The embodiments of the present application provide a comprehensive management control method, device and equipment based on an integrated storage and consumption device, which solves the technical problem that the control method of the existing converter continuously charges the supercapacitor in the energy consumption mode, resulting in low voltage utilization of the supercapacitor and waste of resources.

[0061] Example 1:

[0062] Figure 1 This is a flowchart of the steps of the comprehensive management control method based on the storage and consumption integrated device described in the embodiment of this application. Figure 2 This is a circuit diagram of the storage-consumption integrated device in the comprehensive management and control method based on the storage-consumption integrated device described in an embodiment of the present application.

[0063] like Figure 1 and Figure 2 As shown, an embodiment of the present application provides a comprehensive management and control method based on a storage-consumption integrated device, which is applied to the storage-consumption integrated device.

[0064] like Figure 2 As shown, in the embodiment of the present application, the storage and consumption integrated device includes a storage and consumption integrated module 10 and a converter 20 connected in parallel with the storage and consumption integrated module 10, the converter 20 is connected to the AC system 30, and the storage and consumption integrated module 10 includes N fully controlled sub-modules connected in series, each fully controlled sub-module includes a first fully controlled switching device S1, a first semiconductor device D1, a second fully controlled switching device S2, a second semiconductor device D2, an energy storage element C, a bypass switch S and an energy consumption element R, the second end of the first fully controlled switching device S1 is connected to the first end of the energy storage element C and the second end of the second fully controlled switching device S2, respectively, The third end of a fully-controlled switching device S1 is connected to the first end of the bypass switch S, the third end of a second fully-controlled switching device S2 is connected to the first end of the energy-consuming element R, the second end of the energy-consuming element R is respectively connected to the second end of the bypass switch S and the second end of the energy storage element C, the first semiconductor device D1 is connected in parallel to the second end and the third end of the first fully-controlled switching device S1, the second semiconductor device D2 is connected in parallel to the second end and the third end of the second fully-controlled switching device S2, the first end of the first fully-controlled switching device and the first end of the second fully-controlled switching device are both connected to the control module; each fully-controlled sub-module operates independently.

[0065] It should be noted that the control module is used to control the full-control type switch device to be turned on or off. The N full-control sub-modules are respectively recorded as SM1, SM2, ..., SM N. The converter 20 is used to provide a stable DC voltage to the AC system 30. The converter 20 can be a static synchronous compensator STATCOM, a reactive power compensation device SVG, a flexible DC, a new energy converter, etc. The structure and parameters of each fully controlled submodule are completely consistent. The storage and consumption integrated module 10 of the storage and consumption integrated device is composed of N completely identical fully controlled submodules connected in series, so that the storage and consumption integrated module 10 is easy to use standard devices and has good scalability, which is conducive to shortening the engineering establishment cycle of the storage and consumption integrated device, and facilitating the improvement of the voltage level and the improvement of the transmission power in the storage and consumption integrated device. In this embodiment, the working states of each fully controlled submodule do not affect each other. The energy storage element C can be a supercapacitor, the energy consumption element R can be a resistor, and the first semiconductor device D1 and the second semiconductor device D2 can both be diodes. The anode of the first semiconductor device D1 is connected to the third end of the first fully controlled switching device S1, and the cathode of the first semiconductor device D1 is connected to the second end of the first fully controlled switching device S1. An anode of the second semiconductor device D2 is connected to the third terminal of the second fully-controlled switching device S2 , and a cathode of the second semiconductor device D2 is connected to the second terminal of the second fully-controlled switching device S2 .

[0066] In the embodiment of the present application, the first fully-controlled switching device S1 and the second fully-controlled switching device S2 can both be fully-controlled switching devices that can be controlled on and off by signals, such as MOS transistors, IGBTs, turn-off thyristors (GTOs), or power transistors (GTRs). The emitter of the IGBT serves as the third terminal of the first fully-controlled switching device S1 and the second fully-controlled switching device S2, and the collector of the IGBT serves as the second terminal of the first fully-controlled switching device S1 and the second fully-controlled switching device S2.

[0067] It should be noted that, when the integrated storage and consumption device operates normally, the switching states of the first fully-controlled switching device S1 and the second fully-controlled switching device S2 should be in a complementary state.

[0068] In the embodiment of the present application, when an internal fault occurs in the fully controlled submodule, the bypass switch S is activated and quickly closed to bypass it for timely replacement, and remains open during normal operation. The first fully controlled switching device S1 is used to provide a path for the energy storage element C to discharge externally, ensuring the smooth discharge process of the energy storage element C; the first semiconductor device D1 connected in anti-parallel to the first fully controlled switching device S1 provides a path for the energy storage element C to charge, ensuring the smooth charging process of the energy storage element C, so as to balance the capacitor voltage of the energy storage element C. The second fully controlled switching device S2 is used to provide a path for the energy consuming element R to be put into operation, ensuring that the energy consuming element R consumes active power normally, and the second semiconductor device D2 connected in anti-parallel to the second fully controlled switching device S2 will not flow current under any circumstances.

[0069] It should be noted that this integrated storage and consumption device combines the advantages of reactive power support and voltage stability in existing high-power power electronic devices (STATCOM, SVG), integrates fully controlled switching devices and supercapacitors, and realizes the integration of multiple functions such as reactive power support, voltage stability, and energy balance, providing a new and effective integrated storage and consumption device for the many challenges faced by the new dual-high power system.

[0070] In an embodiment of the present application, the operating modes of the integrated storage and consumption device include an energy consumption mode and an energy supply mode. The direction in which power flows out of the converter 20 is the positive direction, that is, P>0. In the energy supply mode, the first fully-controlled switching device S1 of each fully-controlled submodule is controlled to be turned on and the second fully-controlled switching device S2 is turned off, and the DC voltage on the DC side of the converter 20 is controlled to drop, so that the energy storage element C releases energy outward, that is, P>0, at which time the voltage of the energy storage element C continues to drop. In the energy consumption mode, the first fully-controlled switching device S1 of each fully-controlled submodule is controlled to be turned off and the second fully-controlled switching device S2 is controlled to be turned on, and the energy consumption element R is put into use to absorb energy, that is, P≤0. During the entire process of the energy consumption mode, the DC voltage on the DC side of the converter 20 remains stable, that is, the voltage of the energy storage element C remains stable.

[0071] like Figure 1 As shown, the comprehensive management control method based on the storage and consumption integrated device includes the following steps:

[0072] S1. Acquire the control function of the integrated storage and consumption device and the control parameters corresponding to the control function.

[0073] It should be noted that step S1 obtains the control function and control parameters required to fully utilize the energy storage capacity of the energy storage element C in the integrated storage and consumption device, based on its ability to operate at a relatively high voltage level in steady state. This provides data for subsequently controlling the integrated storage and consumption device in either energy consumption mode or functional mode. In this embodiment, the control functions of the integrated storage and consumption device include grid frequency regulation, inertia response control, damping suppression, and rapid energy consumption. If the control function is damping control, the control parameter is oscillation energy; if the control function is grid frequency regulation, the control parameter is the active frequency modulation coefficient; and if the control function is inertia response control, the control parameter is the inertia response active power.

[0074] S2. Control the operation of the storage and consumption integrated device according to the control functions and control parameters.

[0075] It should be noted that in step S2, the operation of the integrated storage and consumption device is controlled according to the control function and control parameters obtained in step S1, so that the integrated storage and consumption device requires the converter 20 to absorb energy, and directly inputs the energy-consuming element R to absorb energy through optimized control, thereby avoiding continuous charging of the energy storage element C in the energy consumption mode, thereby solving the problem in the prior art that the energy storage element C needs to reserve the ability to absorb energy, so that the energy storage element C can operate at a higher voltage level in steady state, and give full play to the energy storage capacity of the energy storage element C.

[0076] In an embodiment of the present application, the comprehensive management control method based on the integrated storage and consumption device controls the operation of the integrated storage and consumption device by obtaining control functions and control parameters. When the converter of the integrated storage and consumption device absorbs energy, the energy-consuming element R is put into operation to absorb energy (such as power) so as to maintain the voltage stability of the energy storage element C in the energy consumption mode, thereby avoiding continuous charging of the energy storage element C in the energy consumption mode, that is, the energy storage element C does not need to reserve the ability to absorb energy, thereby improving the resource utilization and voltage utilization of the energy storage element C in the integrated storage and consumption device.

[0077] The present application provides a comprehensive management and control method based on an integrated storage and consumption device, which is applied to the integrated storage and consumption device. The comprehensive management and control method includes obtaining a control function of the integrated storage and consumption device and a control parameter corresponding to the control function; and controlling the operation of the integrated storage and consumption device according to the control function and control parameter. Wherein, if the control function is damping control, the control parameter is oscillation energy; if the control function is grid frequency regulation, the control parameter is the active frequency modulation coefficient; if the control function is inertia response control, the control parameter is the inertia response active power. The comprehensive management and control method based on the integrated storage and consumption device controls the operation of the integrated storage and consumption device by obtaining the control function and control parameter. When the converter of the integrated storage and consumption device absorbs energy, the energy-consuming element is put into use to absorb energy to maintain the voltage stability of the energy storage element in the energy consumption mode, thereby avoiding continuous charging of the energy storage element in the energy consumption mode. That is, the energy storage element does not need to reserve energy absorption capacity, thereby improving the resource utilization and voltage utilization of the energy storage element in the integrated storage and consumption device, and solving the technical problem that the existing converter control method continuously charges the supercapacitor in the energy consumption mode, resulting in low voltage utilization and resource waste of the supercapacitor.

[0078] Figure 3 This is a schematic diagram of the power curve of damping suppression in the comprehensive management and control method based on the integrated storage and consumption device described in the embodiment of the present application. Figure 3 The left figure is the power curve of the initial release of active power of the integrated power consumption device. Figure 3 The right figure is the power curve of the initial active power absorbed by the integrated power consumption device.

[0079] like Figure 3As shown, in one embodiment of the present application, controlling the operation of the storage-consumption integrated device according to the control function and the control parameters includes:

[0080] If the control function is damping control, obtain the initial power data output by the integrated storage and consumption device:

[0081] If the initial power data is greater than zero, the integrated storage and consumption device is controlled to operate in energy supply mode according to the oscillation energy, so that the integrated storage and consumption device releases active power to suppress grid frequency oscillation;

[0082] If the initial power data is less than zero, the integrated storage and consumption device is controlled to operate in the energy consumption mode first according to the oscillation energy, and the power update data and oscillation update energy output by the integrated storage and consumption device are obtained in real time until the power update data is greater than zero. The integrated storage and consumption device is then controlled to operate in the energy supply mode according to the oscillation update energy, so that the integrated storage and consumption device absorbs active power to suppress the frequency oscillation of the power grid.

[0083] It should be noted that if Figure 3 As can be seen from the right figure, when the initial power data is less than zero, the integrated storage and consumption device is controlled to operate in the energy consumption mode first to avoid voltage overshoot of the energy storage element C of the integrated storage and consumption device, until the integrated storage and consumption device releases active power, the integrated storage and consumption device is controlled to operate in the energy supply mode.

[0084] Figure 4 This is a schematic diagram of the power curve for grid frequency regulation in the comprehensive management and control method based on the integrated storage and consumption device described in an embodiment of the present application. Figure 4 The left figure is the power curve when the grid frequency data is less than the set frequency threshold. Figure 4 The right figure is the power curve diagram when the grid frequency data is greater than the set frequency threshold.

[0085] like Figure 4 As shown, in one embodiment of the present application, controlling the operation of the storage-consumption integrated device according to the control function and the control parameters includes:

[0086] If the control function is grid frequency regulation, obtain the grid frequency data of the integrated storage and consumption device:

[0087] If the grid frequency data is greater than the first set frequency threshold, the integrated storage and consumption device is controlled to operate in an energy consumption mode according to the active frequency regulation coefficient, so that the integrated storage and consumption device absorbs active power to regulate the grid frequency;

[0088] If the grid frequency data is less than the second set frequency threshold, the storage and consumption integrated device is controlled to operate in energy supply mode according to the active frequency regulation coefficient, so that the storage and consumption integrated device releases active power to adjust the grid frequency.

[0089] It should be noted that the first set frequency threshold can be selected as 50.2 Hz. The second set frequency threshold can be selected as 49.8 Hz. Under the grid frequency regulation control function, when the grid frequency data is less than the second set frequency threshold, the integrated storage and consumption device is directly controlled to operate in energy supply mode. When the grid frequency data is greater than the first set frequency threshold, the integrated storage and consumption device is directly controlled to operate in energy consumption mode.

[0090] Figure 5 This is a schematic diagram of the power curve of inertia response control in the comprehensive management control method based on the storage and consumption integrated device described in an embodiment of the present application. Figure 5 The left figure is the power curve when the grid frequency data is less than the set frequency threshold. Figure 5 The right figure is the power curve diagram when the grid frequency data is greater than the set frequency threshold.

[0091] like Figure 5 As shown, in one embodiment of the present application, controlling the operation of the storage-consumption integrated device according to the control function and the control parameters includes:

[0092] If the control function is inertia response control, obtain the active power data output by the integrated storage and consumption device;

[0093] If the active power data is greater than zero, the storage and consumption integrated device is controlled to operate in a functional mode according to the inertia response active power, so that the storage and consumption integrated device releases active power to suppress changes in the grid frequency;

[0094] If the active power data is less than zero, the integrated storage and consumption device is controlled to operate in energy consumption mode according to the active frequency modulation coefficient, so that the integrated storage and consumption device absorbs active power to suppress changes in grid frequency.

[0095] It should be noted that only under the inertia response control condition, the integrated storage and consumption device enters the energy supply mode according to the inertia response active power control based on the active power released by the converter in the integrated storage and consumption device (i.e., the active power data is greater than 0). If the integrated storage and consumption device absorbs active power according to the inertia response active power control (i.e., the active power data is less than 0), the integrated storage and consumption device enters the energy consumption mode according to the inertia response active power control.

[0096] In one embodiment of the present application, obtaining the control function of the storage-consumption integrated device includes:

[0097] Obtain grid frequency data, frequency change rate data and grid frequency oscillation amplitude of the integrated storage and consumption device;

[0098] The frequency deviation is calculated based on the grid frequency data and the set frequency threshold; the frequency data is calculated based on the frequency deviation and the frequency change rate data;

[0099] If the grid frequency oscillation amplitude is greater than the frequency oscillation amplitude setting value, the control function is damping control;

[0100] If the frequency deviation is greater than the frequency deviation set value, the control function is grid frequency regulation:

[0101] If the frequency change rate data is greater than the frequency change rate setting value and the frequency data is greater than zero, the control function is inertia response control.

[0102] It should be noted that if the power grid of the integrated storage and consumption device is in a high-inertia period (such as daytime), the frequency oscillation amplitude setting value can be set to ±0.15 Hz. If the power grid of the integrated storage and consumption device is in a low-inertia period (such as nighttime), the frequency oscillation amplitude setting value can be set to ±0.08 Hz. The frequency deviation setting value can be set to ±0.2 Hz. The set frequency threshold can be set as needed. The frequency change rate setting value can be set to ±0.2 Hz / s. In this embodiment, during the entire process of a power grid disturbance in the integrated storage and consumption device, when the power grid frequency oscillation amplitude exceeds the frequency oscillation amplitude setting value, the integrated storage and consumption device should use the damping control function to actively absorb or release active power and participate in the power grid frequency oscillation. During the entire process of a power grid disturbance in the integrated storage and consumption device, when the frequency deviation exceeds the frequency deviation setting value, the integrated storage and consumption device should use the grid frequency regulation control function to actively absorb or release active power and participate in the power grid frequency regulation. During the entire process of power grid disturbance of the integrated storage and consumption device, when the frequency change rate data is greater than the frequency change rate setting value and the frequency data is greater than zero, the integrated storage and consumption device uses the inertia response control function to enable the integrated storage and consumption device to actively absorb or release active power, provide inertia support for the power grid, and suppress rapid changes in the power grid frequency.

[0103] In the embodiment of the present application, a difference calculation is performed based on the grid frequency data and the set frequency threshold to obtain the frequency deviation, and a product calculation is performed based on the frequency deviation and the frequency change rate data to obtain the frequency data.

[0104] In one embodiment of the present application, obtaining a control parameter corresponding to a control function includes:

[0105] Obtain the rated active power, active power change, inertia response time constant, rated frequency and frequency change of the integrated storage and consumption device;

[0106] The oscillation energy is obtained by calculating the change in active power and frequency;

[0107] The active power frequency modulation coefficient is calculated based on the rated active power, active power change, rated frequency and frequency change;

[0108] The inertia response active power is calculated based on the rated active power, inertia response time constant and rated frequency.

[0109] It should be noted that the oscillation energy is calculated based on the active power change and the frequency change using the oscillation energy formula. The active frequency modulation coefficient is calculated based on the rated active power, the active power change, the rated frequency and the frequency change using the active frequency modulation coefficient formula. The inertia response active power is calculated based on the rated active power, the inertia response time constant and the rated frequency using the inertia power formula. When the power grid system of the integrated storage and consumption device has a low-frequency oscillation of 0.2Hz~2.5Hz, and the oscillation amplitude of the grid frequency at the grid connection point is greater than 0.003Hz, the integrated storage and consumption device should adjust the power through the control function of additional damping. The oscillation energy of the power adjustment process is obtained using the oscillation energy formula, which is:

[0110]

[0111] Where W is the oscillation energy, in joules; t is the time, in seconds; ΔP is the change in active power output by the integrated storage and consumption device, in watts; Δf is the frequency change, in Hz. The formula for the active frequency modulation coefficient is:

[0112]

[0113] Where K f is the active frequency modulation coefficient, P N is the rated active power of the integrated storage and consumption device, in kilowatts; ΔP=P e -P0,P e is the active power output by the integrated storage and consumption device after the frequency changes, and P0 is the active power output by the integrated storage and consumption device when the frequency remains at the rated frequency. Δf=ff N , f is the frequency of the storage and consumption integrated device after the frequency change, f N is the rated frequency of the integrated storage and consumption device, in Hz. Among them, the active frequency modulation coefficient K f The value range is 20~50. In the case of inertia support, the inertia response active power of the integrated storage and consumption device is obtained using the inertia power formula, which is:

[0114]

[0115] Where, T j It is the inertia response time constant of the integrated storage and consumption device, which characterizes the inertia response capability. The unit is second (s), and the value range is 2s~16s. i_r is the inertia response active power of the integrated storage and consumption device, in kilowatts; J is the imaginary unit; P N ≥100MW, 5s≤Tj ≤10s; P N ≤100MW, 3s≤T j ≤5s.ω N It is the rated angular frequency of the integrated storage and consumption device.

[0116] In one embodiment of the present application, the comprehensive management and control method based on the integrated storage and consumption device further includes: when the grid active power of the integrated storage and consumption device is in surplus, controlling the integrated storage and consumption device to operate in an energy consumption mode.

[0117] In an embodiment of the present application, the comprehensive management and control method based on the storage-consumption integrated device improves the operating voltage level of the energy storage element in the storage-consumption integrated device by optimizing the control function, and can fully utilize the energy storage resources of the energy storage element in the storage-consumption integrated device, thereby achieving the same energy storage requirements, reducing the investment in the energy storage element in the storage-consumption integrated device and reducing the equipment cost.

[0118] Example 2:

[0119] Figure 6 This is a schematic diagram of the framework of the comprehensive management and control device based on the storage and consumption integrated device described in the embodiment of the present application.

[0120] like Figure 6 As shown, an embodiment of the present application provides a comprehensive management and control device based on a storage and consumption integrated device, which is applied to the storage and consumption integrated device.

[0121] like Figure 2 As shown, in the embodiment of the present application, the storage and consumption integrated device includes a storage and consumption integrated module 10 and a converter 20 connected in parallel with the storage and consumption integrated module 10, the converter 20 is connected to the AC system 30, and the storage and consumption integrated module 10 includes N fully controlled sub-modules connected in series, each fully controlled sub-module includes a first fully controlled switching device S1, a first semiconductor device D1, a second fully controlled switching device S2, a second semiconductor device D2, an energy storage element C, a bypass switch S and an energy consumption element R, the second end of the first fully controlled switching device S1 is connected to the first end of the energy storage element C and the second end of the second fully controlled switching device S2, respectively, The third end of a fully-controlled switching device S1 is connected to the first end of the bypass switch S, the third end of a second fully-controlled switching device S2 is connected to the first end of the energy-consuming element R, the second end of the energy-consuming element R is respectively connected to the second end of the bypass switch S and the second end of the energy storage element C, the first semiconductor device D1 is connected in parallel to the second end and the third end of the first fully-controlled switching device S1, the second semiconductor device D2 is connected in parallel to the second end and the third end of the second fully-controlled switching device S2, the first end of the first fully-controlled switching device and the first end of the second fully-controlled switching device are both connected to the control module; each fully-controlled sub-module operates independently.

[0122] It should be noted that the control module is used to control the full-control type switch device to be turned on or off. The N full-control sub-modules are respectively recorded as SM1, SM2, ..., SM N . The converter 20 is used to provide a stable DC voltage to the AC system 30. The converter 20 can be a static synchronous compensator STATCOM, a reactive power compensation device SVG, a flexible DC, a new energy converter, etc. The structure and parameters of each fully controlled submodule are completely consistent. The storage and consumption integrated module 10 of the storage and consumption integrated device is composed of N completely identical fully controlled submodules connected in series, so that the storage and consumption integrated module 10 is easy to use standard devices and has good scalability, which is conducive to shortening the engineering establishment cycle of the storage and consumption integrated device, and facilitating the improvement of the voltage level and the improvement of the transmission power in the storage and consumption integrated device. In this embodiment, the working states of each fully controlled submodule do not affect each other. The energy storage element C can be a supercapacitor, the energy consumption element R can be a resistor, and the first semiconductor device D1 and the second semiconductor device D2 can both be diodes. The anode of the first semiconductor device D1 is connected to the third end of the first fully controlled switching device S1, and the cathode of the first semiconductor device D1 is connected to the second end of the first fully controlled switching device S1. An anode of the second semiconductor device D2 is connected to the third terminal of the second fully-controlled switching device S2 , and a cathode of the second semiconductor device D2 is connected to the second terminal of the second fully-controlled switching device S2 .

[0123] In the embodiment of the present application, the first fully-controlled switching device S1 and the second fully-controlled switching device S2 can both be fully-controlled switching devices that can be controlled on and off by signals, such as MOS transistors, IGBTs, turn-off thyristors (GTOs), or power transistors (GTRs). The emitter of the IGBT serves as the third terminal of the first fully-controlled switching device S1 and the second fully-controlled switching device S2, and the collector of the IGBT serves as the second terminal of the first fully-controlled switching device S1 and the second fully-controlled switching device S2.

[0124] It should be noted that, when the integrated storage and consumption device operates normally, the switching states of the first fully-controlled switching device S1 and the second fully-controlled switching device S2 should be in a complementary state.

[0125] In the embodiment of the present application, when an internal fault occurs in the fully controlled submodule, the bypass switch S is activated and quickly closed to bypass it for timely replacement, and remains open during normal operation. The first fully controlled switching device S1 is used to provide a path for the energy storage element C to discharge externally, ensuring the smooth discharge process of the energy storage element C; the first semiconductor device D1 connected in anti-parallel to the first fully controlled switching device S1 provides a path for the energy storage element C to charge, ensuring the smooth charging process of the energy storage element C, so as to balance the capacitor voltage of the energy storage element C. The second fully controlled switching device S2 is used to provide a path for the energy consuming element R to be put into operation, ensuring that the energy consuming element R consumes active power normally, and the second semiconductor device D2 connected in anti-parallel to the second fully controlled switching device S2 will not flow current under any circumstances.

[0126] It should be noted that this integrated storage and consumption device combines the advantages of reactive power support and voltage stability in existing high-power power electronic devices (STATCOM, SVG), integrates fully controlled switching devices and supercapacitors, and realizes the integration of multiple functions such as reactive power support, voltage stability, and energy balance, providing a new and effective integrated storage and consumption device for the many challenges faced by the new dual-high power system.

[0127] In an embodiment of the present application, the operating modes of the integrated storage and consumption device include an energy consumption mode and an energy supply mode. The direction in which power flows out of the converter 20 is the positive direction, that is, P>0. In the energy supply mode, the first fully-controlled switching device S1 of each fully-controlled submodule is controlled to be turned on and the second fully-controlled switching device S2 is turned off, and the DC voltage on the DC side of the converter 20 is controlled to drop, so that the energy storage element C releases energy outward, that is, P>0, at which time the voltage of the energy storage element C continues to drop. In the energy consumption mode, the first fully-controlled switching device S1 of each fully-controlled submodule is controlled to be turned off and the second fully-controlled switching device S2 is controlled to be turned on, and the energy consumption element R is put into use to absorb energy, that is, P≤0. During the entire process of the energy consumption mode, the DC voltage on the DC side of the converter 20 remains stable, that is, the voltage of the energy storage element C remains stable.

[0128] like Figure 6 As shown, the comprehensive management control device includes a data acquisition module 10 and a control execution module 20;

[0129] The data acquisition module 10 is used to obtain the control function of the storage and consumption integrated device and the control parameters corresponding to the control function;

[0130] A control execution module 20, configured to control the operation of the storage-consumption integrated device according to control functions and control parameters;

[0131] Among them, if the control function is damping control, the control parameter is the oscillation energy; if the control function is grid frequency regulation, the control parameter is the active frequency regulation coefficient; if the control function is inertia response control, the control parameter is the inertia response active power.

[0132] It should be noted that the contents of the modules in the apparatus of Example 2 have been described in the contents of the steps in the method of Example 1. The contents of the modules of the comprehensive management and control device based on the integrated storage and consumption device will not be repeated in this embodiment. In this embodiment, the comprehensive management and control device based on the integrated storage and consumption device uses a data acquisition module and a control execution module to enable the energy-consuming element to absorb energy when the converter of the integrated storage and consumption device absorbs energy, thereby maintaining the voltage stability of the energy storage element in the energy consumption mode. This avoids continuous charging of the energy storage element in the energy consumption mode. In other words, the energy storage element does not need to reserve energy absorption capacity, thereby improving the resource utilization and voltage utilization of the energy storage element in the integrated storage and consumption device.

[0133] In the embodiment of the present application, the control execution module 20 includes a first control submodule, a second control submodule and a third control submodule;

[0134] The first control submodule is configured to obtain initial power data output by the integrated storage and consumption device according to the damping control control function; if the initial power data is greater than zero, control the integrated storage and consumption device to operate in an energy supply mode according to the oscillation energy, so that the integrated storage and consumption device releases active power to suppress grid frequency oscillations; if the initial power data is greater than zero, control the integrated storage and consumption device to operate in an energy supply mode according to the oscillation energy, so that the integrated storage and consumption device releases active power to suppress grid frequency oscillations;

[0135] A second control submodule is configured to obtain grid frequency data of the integrated storage and consumption device according to a control function for grid frequency regulation; if the grid frequency data is greater than a first set frequency threshold, then controlling the integrated storage and consumption device to operate in an energy consumption mode according to an active frequency regulation coefficient, so that the integrated storage and consumption device absorbs active power to regulate the grid frequency; if the grid frequency data is less than a second set frequency threshold, then controlling the integrated storage and consumption device to operate in an energy supply mode according to the active frequency regulation coefficient, so that the integrated storage and consumption device releases active power to regulate the grid frequency;

[0136] The third control submodule is used to obtain the active power data output by the integrated storage and consumption device according to the inertia response control control function; if the active power data is greater than zero, the integrated storage and consumption device is controlled to operate in a functional mode according to the inertia response active power, so that the integrated storage and consumption device releases active power to suppress changes in the grid frequency; if the active power data is less than zero, the integrated storage and consumption device is controlled to operate in an energy consumption mode according to the active frequency modulation coefficient, so that the integrated storage and consumption device absorbs active power to suppress changes in the grid frequency.

[0137] In an embodiment of the present application, the data acquisition module 10 is also used to obtain the grid frequency data, frequency change rate data and grid frequency oscillation amplitude of the integrated storage and consumption device; the frequency deviation is calculated based on the grid frequency data and the set frequency threshold; the frequency data is calculated based on the frequency deviation and the frequency change rate data; if the grid frequency oscillation amplitude is greater than the frequency oscillation amplitude setting value, the control function is damping control; if the frequency deviation is greater than the frequency deviation setting value, the control function is grid frequency regulation; if the frequency change rate data is greater than the frequency change rate setting value and the frequency data is greater than zero, the control function is inertia response control.

[0138] Example 3:

[0139] Figure 7 This is a schematic diagram of the terminal device described in an embodiment of the present application.

[0140] like Figure 7 As shown, an embodiment of the present application provides a terminal device, including a processor and a memory;

[0141] A memory, configured to store program codes and transmit the program codes to a processor;

[0142] The processor is used to execute the above-mentioned comprehensive management and control method based on the integrated storage and consumption device according to the instructions in the program code.

[0143] It should be noted that the processor is configured to execute the steps of the aforementioned embodiment of a comprehensive management and control method based on an integrated storage and consumption device according to the instructions in the program code. Alternatively, the processor implements the functions of each module / unit in the aforementioned system / device embodiments when executing the computer program.

[0144] For example, a computer program may be divided into one or more modules / units, one or more of which are stored in a memory and executed by a processor to complete the present application. One or more modules / units may be a series of computer program instruction segments capable of performing specific functions, and the instruction segments are used to describe the execution process of the computer program in a terminal device.

[0145] Terminal devices can be computing devices such as desktop computers, laptops, PDAs, and cloud servers. Terminal devices may include, but are not limited to, processors and memory. Those skilled in the art will appreciate that this does not constitute a limitation on terminal devices and may include more or fewer components than shown, or a combination of certain components, or different components. For example, terminal devices may also include input / output devices, network access devices, buses, and the like.

[0146] The processor may be a central processing unit (CPU), other general-purpose processors, digital signal processors (DSP), application-specific integrated circuits (ASIC), field-programmable gate arrays (FPGA) or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, etc. A general-purpose processor may be a microprocessor or any conventional processor.

[0147] Memory can be an internal storage unit of a terminal device, such as a hard drive or memory. It can also be an external storage device, such as a plug-in hard drive, a SmartMedia Card (SMC), a Secure Digital (SD) card, or a flash memory card. Furthermore, memory can include both internal and external storage units. Memory is used to store computer programs and other programs and data required by the terminal device. Memory can also be used to temporarily store data that has been output or is about to be output.

[0148] Those skilled in the art will clearly understand that, for the convenience and brevity of description, the specific working processes of the systems, devices and units described above can refer to the corresponding processes in the aforementioned method embodiments and will not be repeated here.

[0149] In the several embodiments provided in this application, it should be understood that the disclosed systems, devices and methods can be implemented in other ways. For example, the device embodiments described above are merely schematic. For example, the division of the units is merely a logical function division. In actual implementation, there may be other division methods, such as multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the mutual coupling or direct coupling or communication connection shown or discussed can be an indirect coupling or communication connection through some interfaces, devices or units, which can be electrical, mechanical or other forms.

[0150] The units described as separate components may or may not be physically separate, and the components shown as units may or may not be physical units, that is, they may be located in one place or distributed across multiple network units. Some or all of these units may be selected to achieve the purpose of this embodiment according to actual needs.

[0151] In addition, the functional units in the various embodiments of the present invention may be integrated into a single processing unit, each unit may exist physically separately, or two or more units may be integrated into a single unit. The aforementioned integrated units may be implemented in the form of hardware or software functional units.

[0152] If the integrated unit is implemented as a software functional unit and sold or used as an independent product, it can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the present invention, or the portion that contributes to the prior art, or all or part of the technical solution, can be embodied in the form of a software product. This computer software product is stored in a storage medium and includes several instructions for causing a computer device (which can be a personal computer, server, or network device, etc.) to execute all or part of the steps of the method described in each embodiment of the present invention. The aforementioned storage medium includes various media that can store program code, such as a USB flash drive, a mobile hard drive, a read-only memory (ROM), a random access memory (RAM), a magnetic disk, or an optical disk.

[0153] As described above, the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them. Although the present application has been described in detail with reference to the above embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the above embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present application.

Claims

1. A comprehensive management and control method based on a storage and consumption integrated device, applied to the storage and consumption integrated device, characterized in that: The comprehensive governance control method includes the following steps: Acquiring a control function of the integrated storage and consumption device and a control parameter corresponding to the control function; controlling the operation of the storage-consumption integrated device according to the control function and the control parameters; Among them, if the control function is damping control, the control parameter is oscillation energy; if the control function is grid frequency regulation, the control parameter is active frequency regulation coefficient; if the control function is inertia response control, the control parameter is inertia response active power.

2. The comprehensive management and control method based on the storage and consumption integrated device according to claim 1 is characterized in that: Controlling the operation of the storage-consumption integrated device according to the control function and the control parameters includes: If the control function is damping control, obtain the initial power data output by the integrated storage and consumption device: If the initial power data is greater than zero, the integrated storage and consumption device is controlled to operate in an energy supply mode according to the oscillation energy, so that the integrated storage and consumption device releases active power to suppress grid frequency oscillation; If the initial power data is less than zero, the integrated storage and consumption device is controlled to operate in the energy consumption mode first according to the oscillation energy, and the power update data and oscillation update energy output by the integrated storage and consumption device are obtained in real time until the power update data is greater than zero, and then the integrated storage and consumption device is controlled to operate in the energy supply mode again according to the oscillation update energy, so that the integrated storage and consumption device absorbs active power to suppress the frequency oscillation of the power grid.

3. The comprehensive management and control method based on the storage and consumption integrated device according to claim 1 is characterized in that: Controlling the operation of the storage-consumption integrated device according to the control function and the control parameters includes: If the control function is grid frequency regulation, obtain grid frequency data of the integrated storage and consumption device: If the grid frequency data is greater than a first set frequency threshold, controlling the integrated storage and consumption device to operate in an energy consumption mode according to the active frequency regulation coefficient, so that the integrated storage and consumption device absorbs active power to regulate the grid frequency; If the grid frequency data is less than a second set frequency threshold, the integrated storage and consumption device is controlled to operate in an energy supply mode according to the active frequency regulation coefficient, so that the integrated storage and consumption device releases active power to adjust the grid frequency.

4. The comprehensive management and control method based on the storage and consumption integrated device according to claim 1 is characterized in that: Controlling the operation of the storage-consumption integrated device according to the control function and the control parameters includes: If the control function is inertia response control, obtaining active power data output by the integrated storage and consumption device; If the active power data is greater than zero, controlling the storage and consumption integrated device to operate in a functional mode according to the inertia response active power, so that the storage and consumption integrated device releases active power to suppress changes in the grid frequency; If the active power data is less than zero, the integrated storage and consumption device is controlled to operate in an energy consumption mode according to the active frequency modulation coefficient, so that the integrated storage and consumption device absorbs active power to suppress changes in grid frequency.

5. The comprehensive management and control method based on the storage and consumption integrated device according to any one of claims 1 to 4, characterized in that: Obtaining the control function of the integrated storage and consumption device includes: Obtaining grid frequency data, frequency change rate data, and grid frequency oscillation amplitude of the integrated storage and consumption device; Calculating based on the grid frequency data and the set frequency threshold to obtain a frequency deviation; calculating based on the frequency deviation and the frequency change rate data to obtain frequency data; If the grid frequency oscillation amplitude is greater than the frequency oscillation amplitude setting value, the control function is damping control; If the frequency deviation is greater than the frequency deviation set value, the control function is grid frequency regulation: If the frequency change rate data is greater than the frequency change rate setting value and the frequency data is greater than zero, the control function is inertia response control.

6. The comprehensive management and control method based on the storage and consumption integrated device according to any one of claims 1 to 4, characterized in that: Acquiring control parameters corresponding to the control function includes: Obtaining the rated active power, active power change, inertia response time constant, rated frequency and frequency change of the integrated storage and consumption device; Calculating the oscillation energy based on the active power change and the frequency change; The active frequency modulation coefficient is obtained by calculating according to the rated active power, the active power change, the rated frequency and the frequency change; The inertia response active power is obtained by calculation according to the rated active power, the inertia response time constant and the rated frequency.

7. A comprehensive management and control device based on a storage and consumption integrated device, applied to the storage and consumption integrated device, characterized in that: The comprehensive management control device includes: a data acquisition module and a control execution module; The data acquisition module is used to obtain the control function of the storage and consumption integrated device and the control parameters corresponding to the control function; The control execution module is used to control the operation of the storage and consumption integrated device according to the control function and the control parameters; Among them, if the control function is damping control, the control parameter is oscillation energy; if the control function is grid frequency regulation, the control parameter is active frequency regulation coefficient; if the control function is inertia response control, the control parameter is inertia response active power.

8. The comprehensive management control device based on the storage and consumption integrated device according to claim 7 is characterized in that: The control execution module includes a first control submodule, a second control submodule and a third control submodule; The first control submodule is configured to obtain initial power data output by the integrated storage and consumption device according to the damping control control function; if the initial power data is greater than zero, control the integrated storage and consumption device to operate in an energy supply mode according to the oscillation energy, so that the integrated storage and consumption device releases active power to suppress grid frequency oscillations; if the initial power data is greater than zero, control the integrated storage and consumption device to operate in an energy supply mode according to the oscillation energy, so that the integrated storage and consumption device releases active power to suppress grid frequency oscillations; The second control submodule is configured to obtain grid frequency data of the integrated storage and consumption device according to the control function for grid frequency regulation; if the grid frequency data is greater than a first set frequency threshold, control the integrated storage and consumption device to operate in an energy consumption mode according to the active frequency modulation coefficient, so that the integrated storage and consumption device absorbs active power to regulate the grid frequency; if the grid frequency data is less than a second set frequency threshold, control the integrated storage and consumption device to operate in an energy supply mode according to the active frequency modulation coefficient, so that the integrated storage and consumption device releases active power to regulate the grid frequency; The third control submodule is configured to obtain active power data output by the integrated storage and consumption device according to the control function being inertia response control; If the active power data is greater than zero, the integrated storage and consumption device is controlled to operate in a functional mode according to the inertia response active power, so that the integrated storage and consumption device releases active power to suppress changes in the grid frequency; if the active power data is less than zero, the integrated storage and consumption device is controlled to operate in an energy consumption mode according to the active frequency modulation coefficient, so that the integrated storage and consumption device absorbs active power to suppress changes in the grid frequency.

9. The comprehensive management control device based on the storage and consumption integrated device according to claim 7 is characterized in that: The data acquisition module is also used to obtain the grid frequency data, frequency change rate data and grid frequency oscillation amplitude of the integrated storage and consumption device; calculate based on the grid frequency data and the set frequency threshold to obtain the frequency deviation; calculate based on the frequency deviation and the frequency change rate data to obtain the frequency data; if the grid frequency oscillation amplitude is greater than the frequency oscillation amplitude setting value, the control function is damping control; if the frequency deviation is greater than the frequency deviation setting value, the control function is grid frequency regulation; if the frequency change rate data is greater than the frequency change rate setting value and the frequency data is greater than zero, the control function is inertia response control.

10. A terminal device, characterized in that: including a processor and a memory; The memory is used to store program code and transmit the program code to the processor; The processor is used to execute the comprehensive management and control method based on the storage and consumption integrated device as described in any one of claims 1 to 6 according to the instructions in the program code.

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