Energy storage management device and energy storage system

Abstract

The utility model belongs to the technical field of energy storage control, and particularly relates to an energy storage management device and an energy storage system, and the energy storage management device comprises a detection assembly, a control assembly and a communication assembly. Wherein the detection assembly and the communication assembly are respectively and electrically connected with the control assembly, and the detection assembly and the control assembly are respectively and electrically connected with the energy storage converter; the detection assembly is suitable for collecting battery parameters and working parameters of the energy storage converter and sending the battery parameters and the working parameters to the control assembly. The control assembly is suitable for sending a corresponding control instruction to the energy storage converter; the control assembly is also suitable for carrying out data interaction with external equipment through the communication assembly; according to the utility model, the detection assembly, the control assembly and the communication assembly are arranged to replace a battery management system and an energy management system to control the energy storage converter, so that the hardware cost is reduced.

Description

Technical Field

[0001] The utility model belongs to the technical field of energy storage control, and specifically relates to an energy storage management device and an energy storage system. Background Art

[0002] Energy storage systems are used in the field of power generation, and are composed of multiple systems including batteries, battery management systems, energy storage inverters, and energy management systems.

[0003] In current energy storage systems, batteries and energy storage inverters are controlled by battery management systems and energy management systems, and their functions are duplicated and redundant, which not only increases hardware costs, but also causes data packet loss in communications between multiple systems, leading to malfunctions in the energy storage system and posing safety risks.

[0004] Therefore, there is an urgent need to develop a new energy storage management device and energy storage system to solve the above problems. Utility Model Content

[0005] The purpose of the utility model is to provide an energy storage management device and an energy storage system.

[0006] In order to solve the above technical problems, the utility model provides an energy storage management device, which includes: a detection component, a control component and a communication component; wherein the detection component and the communication component are electrically connected to the control component, respectively, and the detection component and the control component are electrically connected to the energy storage inverter, respectively; the detection component is suitable for collecting battery parameters and operating parameters of the energy storage inverter and sending them to the control component; the control component is suitable for sending corresponding control instructions to the energy storage inverter; and the control component is also suitable for data exchange with external devices through the communication component.

[0007] Specifically, the detection component includes: a battery detection module; the battery detection module is electrically connected to the control component, and the battery detection module is electrically connected to each battery module in the energy storage inverter; the battery detection module is suitable for collecting battery parameters of each battery module.

[0008] Specifically, the detection component includes: an energy storage inverter parameter detection module; the energy storage inverter parameter detection module is electrically connected to the control component, and the energy storage inverter parameter detection module is electrically connected to the bidirectional inverter module in the energy storage inverter; the energy storage inverter parameter detection module is suitable for collecting the working parameters of the energy storage inverter.

[0009] Specifically, the control component includes: a data processing module and a control module; the data processing module is electrically connected to the detection component, and the data processing module, the communication component, and the energy storage inverter are electrically connected to the control module respectively; the data processing module is suitable for processing the battery parameters and working parameters of the energy storage inverter, and the control module obtains external data through the communication component so that the control module sends corresponding control instructions to the energy storage inverter.

[0010] Specifically, the communication component includes: a plurality of communication modules; each of the communication modules is electrically connected to a control module; and the control module is suitable for performing data exchange with a corresponding external device through each communication module.

[0011] Specifically, the communication module is electrically connected to the host computer.

[0012] Specifically, the communication module is electrically connected to the cloud server.

[0013] On the other hand, the utility model provides an energy storage system, which includes: an energy storage inverter and an energy storage management device as described above; wherein the energy storage inverter is electrically connected to the energy storage management device; the energy storage management device is suitable for collecting battery parameters and operating parameters of the energy storage inverter, and sending corresponding control instructions to the energy storage inverter.

[0014] Specifically, the energy storage management device is connected to a host computer or a cloud server; the energy storage management device exchanges data with the host computer or the cloud server.

[0015] Specifically, the energy storage converter is connected to a transformer, and the transformer is connected to a power grid.

[0016] The beneficial effect of the utility model is that the utility model controls the energy storage inverter by setting detection components, control components, and communication components instead of the battery management system and the energy management system, thereby reducing hardware costs. At the same time, the energy storage inverter can adjust the working condition of the energy storage inverter according to the battery performance and the grid dispatching situation, thereby effectively improving the safety and service life of the energy storage system. It also has functions such as real-time status, historical operation, abnormal reminder, remote control, etc., to realize intelligent management.

[0017] Other features and advantages of the present invention will be set forth in the following description, and in part will become apparent from the description, or may be understood by implementing the present invention.

[0018] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, preferred embodiments are given below and described in detail with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the specific implementation methods of the utility model or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0020] Figure 1 It is a principle block diagram of the energy storage management device of the utility model;

[0021] Figure 2 It is a principle block diagram of the energy storage system of the utility model;

[0022] Figure 3 It is a flow chart of local monitoring and management of energy storage system of the utility model;

[0023] Figure 4 It is a flow chart of remote monitoring and management of the energy storage system of the utility model. DETAILED DESCRIPTION

[0024] In order to make the purpose, technical solution and advantages of the embodiments of the utility model clearer, the technical solution of the utility model will be clearly and completely described below in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0025] Embodiment 1, in this embodiment, as Figure 1 As shown, this embodiment provides an energy storage management device, which includes: a detection component, a control component and a communication component; wherein the detection component and the communication component are electrically connected to the control component, respectively, and the detection component and the control component are electrically connected to the energy storage inverter, respectively; the detection component is suitable for collecting battery parameters and operating parameters of the energy storage inverter to send them to the control component; the control component is suitable for sending corresponding control instructions to the energy storage inverter; and the control component is also suitable for data interaction with external devices through the communication component.

[0026] In this embodiment, detection components, control components, and communication components are set to replace the battery management system and the energy management system to control the energy storage inverter, thereby reducing hardware costs. At the same time, the energy storage inverter can adjust the working condition of the energy storage inverter according to the battery performance and the grid dispatching situation, thereby effectively improving the safety and service life of the energy storage system. It also has real-time status, historical operations, abnormal reminders, remote control and other functions to achieve intelligent management.

[0027] In order to obtain the battery parameters of each battery module, the detection component includes: a battery detection module; the battery detection module is electrically connected to the control component, and the battery detection module is electrically connected to each battery module in the energy storage inverter; the battery detection module is suitable for collecting the battery parameters of each battery module.

[0028] Specifically, the battery module is composed of a plurality of battery modules.

[0029] Specifically, the battery detection module is used to detect the temperature, voltage, current, etc. of each battery module.

[0030] In order to obtain the working parameters of the energy storage inverter, the detection component includes: an energy storage inverter parameter detection module; the energy storage inverter parameter detection module is electrically connected to the control component, and the energy storage inverter parameter detection module is electrically connected to the bidirectional conversion module in the energy storage inverter; the energy storage inverter parameter detection module is suitable for collecting the working parameters of the energy storage inverter.

[0031] Specifically, the bidirectional conversion module is used to realize the AC / DC bidirectional conversion of electric energy between the battery and the power grid, and the energy storage converter parameter detection module is used to detect the temperature, output voltage, current, etc. of the bidirectional conversion module.

[0032] In order to realize intelligent control of the energy storage inverter, the control component includes: a data processing module and a control module; the data processing module is electrically connected to the detection component, and the data processing module, the communication component, and the energy storage inverter are electrically connected to the control module respectively; the data processing module is suitable for processing the battery parameters and working parameters of the energy storage inverter, and the control module obtains external data through the communication component so that the control module sends corresponding control instructions to the energy storage inverter.

[0033] Specifically, the data processing module is used to process the data detected by the battery detection module and the energy storage inverter parameter detection module, obtain battery information such as battery SOC, SOH, and working information such as the energy storage inverter charging and discharging status, output power, and fault status. The control module is used to adjust the working status of the energy storage inverter according to the battery module information and the grid dispatching status.

[0034] In order to facilitate information interaction with external devices, the communication component includes: a plurality of communication modules; each of the communication modules is electrically connected to a control module; and the control module is suitable for data interaction with the corresponding external device through each communication module.

[0035] Specifically, the communication module is used to exchange information with the host computer and the cloud server.

[0036] The battery detection module can obtain the performance of the battery module in real time. Therefore, the output power of the energy storage converter can be adjusted in real time according to the charging and discharging characteristics of the battery module. Through the interaction between the communication component and the host computer, the control component can also control the charging and discharging working conditions of the energy storage converter according to the grid dispatching conditions. The charging and discharging and power control of the energy storage converter are realized by controlling the bidirectional conversion module. The battery performance parameters and the working parameters of the energy storage converter can be analyzed and processed at the same time. After the collected data is analyzed and calculated by the data processing module, it can be uploaded to the host computer through the communication component, and displayed in the host computer according to various types of sensor data, and the data is stored for easy historical data query. The stored historical data is displayed in a curve chart. The working conditions can be analyzed and studied through this intuitive and clear data display. After analyzing and processing the historical fault data, the fault can be predicted and certain measures can be taken to avoid it, so as to ensure the normal operation of the energy storage converter. After the data information can be uploaded to the cloud server, the environmental data information can be queried through the remote terminal; the control component can also be remotely controlled through the remote terminal to realize remote control of the energy storage management device.

[0037] As an optional implementation of remote control of the communication component, the communication module is electrically connected to a host computer.

[0038] As another optional implementation of remote control of the communication component, the communication module is electrically connected to the cloud server.

[0039] Embodiment 2, on the basis of embodiment 1, as Figures 1 to 4 As shown, this embodiment provides an energy storage system, which includes: an energy storage inverter and an energy storage management device as provided in Example 1; wherein the energy storage inverter is electrically connected to the energy storage management device; the energy storage management device is suitable for collecting battery parameters and operating parameters of the energy storage inverter, and sending corresponding control instructions to the energy storage inverter.

[0040] Specifically, the energy storage management device is connected to a host computer or a cloud server; the energy storage management device exchanges data with the host computer or the cloud server.

[0041] Specifically, the energy storage converter is connected to a transformer, and the transformer is connected to a power grid.

[0042] See also Figure 3 When the energy storage system is working normally, the detection component will detect the parameter information of the energy storage inverter in real time, and then the control component will parse and calculate the collected data to obtain the specific values ​​of various parameters, and control the energy storage inverter to perform corresponding actions according to the detection values. For example, when the detection parameters are normal, the action is maintained, and when the detection parameters are abnormal, the action is switched.

[0043] See also Figure 4 , remotely access the cloud server using a remote terminal, view real-time detection data, and compare it with normal working parameter values. If there is a large discrepancy, an alarm signal will be sent to the energy storage management device, and you can choose to remotely control the energy storage converter to perform actions.

[0044] When the energy storage converter is working, it responds to the dispatching first, that is, it performs the charge and discharge control first. After the charge and discharge actions are executed, the impact of the battery performance is considered. On the premise of meeting the output power requirements, the charge and discharge management of each battery is performed reasonably. For example, when the energy storage system is used as a capacity unit or a backup power source, in order to ensure the quality of power and system safety, the output power requirements are met first. When the power requirements are met, the battery charge and discharge management is performed according to the battery parameters and the charge and discharge characteristic curve; when the energy storage system is used for peak shaving or grid frequency modulation, the power requirements for charge and discharge are relatively wide. At this time, the charge and discharge control of the battery in the energy storage system can be performed according to the battery parameters and the battery charge and discharge curve, which can extend the battery life and effectively improve the working efficiency of the energy storage system.

[0045] The energy storage management device can analyze and process historical data. Based on the analysis of historical fault data, it can predict the causes and solutions of common faults, and the frequency of faults will continue to decrease.

[0046] In summary, the utility model controls the energy storage inverter by setting detection components, control components, and communication components instead of battery management systems and energy management systems, thereby reducing hardware costs. At the same time, the energy storage inverter can adjust the working condition of the energy storage inverter according to battery performance and power grid dispatching conditions, thereby effectively improving the safety and service life of the energy storage system, and has functions such as real-time status, historical operations, abnormal reminders, and remote control to achieve intelligent management; the detection module, control component, and communication component are integrated into one device, and data collection and analysis as well as the issuance of control commands can be achieved in the same device, and can share an air cooling or liquid cooling device, which can effectively improve Improve system reliability, safety and system execution efficiency. Since the battery management controller is reduced, the hardware cost can be effectively reduced, thereby improving the competitiveness of the product. The energy storage inverter can obtain the performance of the battery in real time, and can adjust the output power of the energy storage inverter in real time according to the charging and discharging characteristics of the battery, which can improve the working efficiency and safety of the energy storage system, effectively extend the service life of the battery, and reduce the cost of the energy storage system. The energy storage management device can analyze and process historical fault data, and can predict faults based on the analysis, and finally take certain measures to avoid the occurrence of faults, ensure the normal operation of the energy storage system, and improve the reliability of the energy storage system.

[0047] All devices (parts without specific structure) selected in this application are universal standard parts or parts known to those skilled in the art, and their structures and principles can be known by those skilled in the art through technical manuals or conventional experimental methods. In addition, the software programs involved in this application are all prior art, and this application does not involve any improvement to the software programs.

[0048] In the description of the embodiments of the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0049] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0050] In the several embodiments provided in the present application, it should be understood that the disclosed systems, devices and methods can be implemented in other ways. The device embodiments described above are merely schematic. For example, the division of the units is only a logical function division. There may be other division methods in actual implementation. For example, 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 through some communication interfaces, and the indirect coupling or communication connection of devices or units can be electrical, mechanical or other forms.

[0051] The units described as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, that is, they may be located in one place or distributed on multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of this embodiment.

[0052] In addition, each functional unit in each embodiment of the present utility model may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit.

[0053] Based on the above ideal embodiments of the utility model, the relevant staff can make various changes and modifications without deviating from the technical concept of the utility model through the above description. The technical scope of the utility model is not limited to the content of the specification, and its technical scope must be determined according to the scope of the claims.

Claims

1. An energy storage management device, characterized in that: include: Detection components, control components and communication components; in The detection component and the communication component are electrically connected to the control component respectively, and the detection component and the control component are electrically connected to the energy storage converter respectively; The detection component is suitable for collecting battery parameters and operating parameters of the energy storage converter to send to the control component; The control component is suitable for sending corresponding control instructions to the energy storage converter; and The control component is also suitable for performing data exchange with external equipment through the communication component.

2. The energy storage management device according to claim 1, characterized in that: The detection component includes: a battery detection module; The battery detection module is electrically connected to the control assembly, and the battery detection module is electrically connected to each battery module in the energy storage converter; The battery detection module is suitable for collecting battery parameters of each battery module.

3. The energy storage management device according to claim 1, characterized in that: The detection component includes: an energy storage converter parameter detection module; The energy storage converter parameter detection module is electrically connected to the control component, and the energy storage converter parameter detection module is electrically connected to the bidirectional converter module in the energy storage converter; The energy storage converter parameter detection module is suitable for collecting the working parameters of the energy storage converter.

4. The energy storage management device according to claim 1, characterized in that: The control component includes: a data processing module and a control module; The data processing module is electrically connected to the detection component, and the data processing module, the communication component, and the energy storage converter are electrically connected to the control module respectively; The data processing module is suitable for processing the battery parameters and working parameters of the energy storage converter, and the control module obtains external data through the communication component so that the control module sends corresponding control instructions to the energy storage converter.

5. The energy storage management device according to claim 1, characterized in that: The communication component includes: a number of communication modules; Each of the communication modules is electrically connected to the control module respectively; The control module is suitable for performing data exchange with corresponding external devices through each communication module.

6. The energy storage management device according to claim 5, characterized in that: The communication module is electrically connected to the host computer.

7. The energy storage management device according to claim 5, characterized in that: The communication module is electrically connected to the cloud server.

8. An energy storage system, characterized in that: include: An energy storage converter and an energy storage management device as claimed in any one of claims 1 to 7; in The energy storage converter is electrically connected to the energy storage management device; The energy storage management device is suitable for collecting battery parameters and operating parameters of the energy storage converter and sending corresponding control instructions to the energy storage converter.

9. The energy storage system according to claim 8, characterized in that: The energy storage management device is connected to a host computer or a cloud server; The energy storage management device exchanges data with a host computer or a cloud server.

10. The energy storage system according to claim 8, characterized in that: The energy storage converter is connected to a transformer, and the transformer is connected to a power grid.

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