Fusion type energy storage control system

Abstract

The invention provides a fusion type energy storage control system, and relates to the technical field of energy storage control systems, the system comprises a controller, an energy management unit, a battery management unit and a power conversion unit, the controller is an integrated controller of the energy management unit, the battery management unit and the power conversion unit; the energy management unit is used for performing energy scheduling and optimization on the target energy storage system; the battery management unit is used for managing a battery of the target energy storage system; the power conversion unit is used for carrying out conversion in different forms on battery output electric energy of the target energy storage system; and the controller is used for integrally controlling the energy management unit, the battery management unit and the power conversion unit. Compared with an energy storage management system in the prior art, the system disclosed by the invention has the advantages that the design and maintenance cost of the system is reduced, the communication complexity is reduced, the data processing capability, the fault response speed and the like of the system are improved, and the overall security of the system is improved.

Description

Technical Field

[0001] The present disclosure relates to the technical field of energy storage control systems, and in particular to a fusion energy storage control system. Background Art

[0002] With the rapid development of renewable energy and the increasing trend of electrification, the demand for energy storage systems is increasing. In current technology, energy storage systems are usually composed of multiple separate subsystems, each of which includes an independent processor, which requires a lot of equipment placement space and system resources.

[0003] At the same time, separate subsystems often lead to challenges in system management and optimization, such as complex system integration and management. Each subsystem may use different communication protocols and interfaces, which increases the complexity of system integration. At the same time, separate systems need to use multiple communication layers for data transmission and decision-making, which may cause delays in response time. Moreover, in a separate system, each subsystem operates independently and can often only optimize its own operating status rather than the efficiency of the overall system, which increases the difficulty of system optimization. Summary of the invention

[0004] The present disclosure aims to solve one of the technical problems in the related art at least to some extent.

[0005] To this end, an objective of the present disclosure is to provide a fusion energy storage control system.

[0006] To achieve the above-mentioned objectives, the first aspect of the present disclosure proposes an integrated energy storage control system, comprising: a controller, an energy management unit, a battery management unit and a power conversion unit, wherein the controller is an integrated controller of the energy management unit, the battery management unit and the power conversion unit; the energy management unit is used to schedule and optimize the energy of the target energy storage system; the battery management unit is used to manage the batteries of the target energy storage system; and the power conversion unit is used to transform the battery output electrical energy of the target energy storage system into different forms.

[0007] According to one embodiment of the present disclosure, the controller further includes: a data acquisition module, a control and management module, a connection module, a safety protection and fault management module, a user interface and a remote monitoring module.

[0008] According to one embodiment of the present disclosure, the connection module is used to provide a standardized interface and communication protocol for the energy management unit, the battery management unit and the power conversion unit.

[0009] According to one embodiment of the present disclosure, the standardized interface includes one or more of a CAN bus interface, a Modbus interface, and an Ethernet interface.

[0010] According to one embodiment of the present disclosure, the data acquisition module includes: a plurality of sensors, and the sensors are used to acquire operating data of the target energy storage system and operating data of batteries of the target energy storage system.

[0011] According to one embodiment of the present disclosure, the control and management module is also used to: provide a control algorithm.

[0012] According to one embodiment of the present disclosure, the security protection and fault management module is used to provide security protection functions and fault monitoring and management strategies.

[0013] According to one embodiment of the present disclosure, the user interface and remote monitoring module include: a display device for providing intuitive battery status display, alarm display and real-time alarm.

[0014] According to one embodiment of the present disclosure, the battery management unit includes a battery module management module, a battery cluster management module and a battery stack management module.

[0015] According to one embodiment of the present disclosure, respective controllers of the battery module management module, the battery cluster management module and the battery stack management module are integrated into the controller.

[0016] Compared with the energy storage management system in the current technology, the system disclosed in the present invention reduces the system design and maintenance costs, reduces the complexity of communication, while improving the system's data processing capabilities, fault response speed, etc., and improves the overall safety of the system. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a structural schematic diagram of a fusion energy storage control system according to one embodiment of the present disclosure;

[0018] Figure 2 is a schematic diagram of the structure of a controller according to one embodiment of the present disclosure;

[0019] Figure 3 It is a structural schematic diagram of a battery management unit according to an embodiment of the present disclosure. DETAILED DESCRIPTION

[0020] Embodiments of the present disclosure are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present disclosure, and should not be construed as limiting the present disclosure.

[0021] The acquisition, storage, use, and processing of data in the technical solution disclosed in this disclosure are in compliance with the relevant provisions of relevant laws and regulations.

[0022] It should be noted that in the embodiments of the present application, certain software, components, models and other existing solutions in the industry may be mentioned, and they should be considered as exemplary. Their purpose is only to illustrate the feasibility of implementing the technical solution of the present application, but it does not mean that the applicant has or will necessarily use the solution.

[0023] Figure 1 is a structural diagram of a fusion energy storage control system according to an embodiment of the present disclosure. Figure 1 As shown, the system includes: a controller 110 , an energy management unit 120 , a battery management unit 130 and a power conversion unit 140 , and the controller 110 is an integrated controller 110 of the energy management unit 120 , the battery management unit 130 and the power conversion unit 140 .

[0024] It should be noted that the controller 110 can use a digital energy chip to complete the integrated management of integrated circuits and energy scheduling. By integrating the controller for energy management, the controller for battery management, and the controller for power conversion, removing redundant acquisition circuits, and performing unified energy storage system control management, the integration of the energy storage control system can be improved, the equipment cost and equipment volume can be reduced, and the practicality of the system can be improved.

[0025] The energy management unit 120 is used to perform energy scheduling and optimization on the target energy storage system. It should be noted that the energy management unit 120 may include multiple functions, for example, the following functions:

[0026] Data collection and monitoring: Real-time collection of data from various energy equipment, such as power generation devices, energy storage systems, loads, etc.

[0027] Load forecasting: Predicting future energy demand based on historical data and external factors (weather forecast, etc.).

[0028] Optimized scheduling: Automatically adjust energy production and consumption strategies based on factors such as cost and efficiency.

[0029] Fault diagnosis and alarm: Detect abnormal conditions and issue timely alarms to help maintenance personnel respond to problems quickly.

[0030] Report generation: Provides detailed energy consumption reports to support decision making.

[0031] The battery management unit 130 is used to manage the batteries of the target energy storage system. It should be noted that the battery management unit 130 may include multiple functions, for example, the following functions:

[0032] Voltage monitoring: Continuously monitor the voltage level of each battery cell to prevent overcharging or over-discharging.

[0033] Current monitoring: Measures the current flowing into and out of the battery to ensure it does not exceed a safe range.

[0034] Temperature management: Track battery temperature through thermistors or other sensors and activate cooling mechanisms when necessary.

[0035] Balance control: adjusts the difference in charge status between each battery cell to extend the overall life.

[0036] Health status assessment: Calculate the battery's remaining capacity (SOC, State of Charge) and health status (SOH, State of Health).

[0037] Protection function: Immediately cut off the circuit when potential danger is detected to protect the safety of users and equipment.

[0038] The power conversion unit 140 is used to convert the battery output power of the target energy storage system into different forms. It should be noted that the power conversion unit 140 may include multiple functions, for example, the following functions:

[0039] Bidirectional conversion: It can realize bidirectional conversion of DC / AC and AC / DC, and adapt to different types of power supplies and loads.

[0040] Power regulation: Maintain stable output voltage and frequency to meet grid access standards.

[0041] Harmonic suppression: Reduce current distortion caused by nonlinear loads and improve power quality.

[0042] Maximum Power Point Tracking (MPPT): For photovoltaic systems, the power conversion unit can dynamically adjust the input voltage to ensure that the solar panel always operates at the optimal efficiency point.

[0043] Island protection: When a grid failure occurs, the power conversion unit can quickly detach and isolate from it, ensuring the safety and independence of local power supply.

[0044] The controller 110 is used to integrate and control the energy management unit 120 , the battery management unit 130 and the power conversion unit 140 .

[0045] Compared with the energy storage management system in the current technology, the system disclosed in the present invention reduces the system design and maintenance costs, reduces the complexity of communication, while improving the system's data processing capabilities, fault response speed, etc., and improves the overall safety of the system.

[0046] In one possible implementation, Figure 2 As shown, the controller 110 also includes a data acquisition module 210 , a control and management module 220 , a connection module 230 , a safety protection and fault management module 240 , and a user interface and remote monitoring module 250 .

[0047] In the embodiment of the present disclosure, the connection module 230 is used to provide a standardized interface and communication protocol for the energy management unit 120 , the battery management unit 130 and the power conversion unit 140 .

[0048] It should be noted that the standardized interface may include one or more of a CAN bus interface, a Modbus interface, an Ethernet interface, and the like.

[0049] In another possible implementation, the connection module 230 is also used to provide a data format. In actual operation, real-time data transmission mainly adopts a binary data format, and the data content includes real-time monitoring data such as the voltage, current, and temperature of the battery pack, as well as the operating status and power output of the power conversion unit. The binary format is usually more compact than JSON and XML, occupies less bandwidth and storage space when transmitting data, has higher transmission efficiency, and the binary parsing and serialization speed is usually faster than the text format, especially when processing large amounts of data. At the same time, binary data is difficult to read and understand directly, providing a certain degree of data security.

[0050] The configuration file and policy data exchange mainly adopts JSON data format, and the data content includes the configuration file, optimization strategy, scheduling plan and other information of the energy management system, as well as the data exchange with the power conversion unit and the battery management unit. The JSON format has good readability and easy parsing characteristics, which is suitable for data exchange and integration between the battery management unit and the energy management unit. The JSON format can add new fields and information according to specific needs to support different business logic and policy adjustments. At the same time, the JSON format can add new fields and information according to specific needs to support different business logic and policy adjustments.

[0051] The XML data format is mainly used for complex data model description and verification, and is mainly used to describe complex data models, metadata information, device configuration parameters, etc. XML supports rich metadata descriptions and complex data structures, and is suitable for data verification and flexible data conversion operations within the system.

[0052] In this way, a physical basis is provided for multi-system integration through standardized interfaces, and data sharing and information exchange between multiple systems can be achieved by providing a unified data format.

[0053] The data acquisition module 210 includes a plurality of sensors, and the sensors are used to acquire operating data of the target energy storage system and operating data of the batteries of the target energy storage system.

[0054] In one possible implementation, a data acquisition device or controller 110 with a multi-input function can be selected to simplify the collection and processing of data from multiple battery modules. Such a device can manage multiple battery modules through a single device, reducing the number of physical connection lines.

[0055] A multi-channel data collector can have multiple input channels, each of which can be connected to a sensor of a battery module, such as a voltage sensor, a temperature sensor, etc. These data collectors are connected to a centralized battery management unit system through their own communication protocols (such as CAN bus, Modbus, etc.), and transmit the data collected from multiple battery modules to the battery management unit system for processing and analysis.

[0056] Multi-channel data acquisition can reduce the amount of hardware that must be used to connect and manage each battery module by using a small number of multi-channel data collectors, reducing hardware costs and complexity. At the same time, it can simultaneously acquire data from multiple battery modules, making data collection more efficient and real-time, improving data collection efficiency, and simplifying the integration and deployment of the entire battery management unit system through standardized interfaces and communication protocols.

[0057] In another possible implementation, the data acquisition module 210 may further include a data acquisition circuit for acquiring battery data.

[0058] The control and management module 220 is also used to provide a control algorithm. In the embodiment of the present disclosure, the control algorithm can be various and is not limited here. For example, the control algorithm can be a battery state estimation, a charge and discharge control algorithm, etc.

[0059] In the disclosed embodiment, the control and management module 220 ensures that coordinated battery charging and discharging strategies, power conversion efficiency optimization, etc. can be implemented on the integrated platform by formulating unified control logic and algorithms. The integrated data is used for algorithm optimization, for example, the operating parameters of the power conversion unit 140 are optimized through the market data collected by the energy management unit 120 to maximize the system efficiency.

[0060] The safety protection and fault management module 240 is used to provide safety protection functions and fault monitoring and management strategies.

[0061] The safety protection and fault management module 240 can ensure the safe operation of the battery system under various abnormal conditions, and at the same time ensure that the integrated platform can simultaneously monitor and respond to the safety protection requirements of each system, such as overvoltage protection, overcurrent protection, etc. At the same time, through a unified fault diagnosis system, it can quickly locate and handle any system faults or abnormal conditions.

[0062] The user interface and remote monitoring module 250 includes a display device for providing intuitive battery status display, alarm display and real-time alarm.

[0063] In the embodiments of the present disclosure, there are many ways to alarm, which are not limited here. For example, it can include display screen alarm, sound alarm and text message alarm, etc. Through this real-time alarm method, the practicality of the system and the safety of the energy storage system operation can be improved.

[0064] In the embodiments of the present disclosure, Figure 3 As shown, the battery management unit 130 includes a battery module management module 310 , a battery cluster management module 320 and a battery stack management module 330 .

[0065] The respective controllers 110 of the battery module management module 310, the battery cluster management module 320 and the battery stack management module 330 are integrated into the controller 110. They include functions such as battery monitoring, charge and discharge control, and temperature management.

[0066] It should be noted that the battery module management module 310 is composed of a battery collection unit and a battery balancing unit, which collects various single-cell information of the battery, calculates and analyzes the SOC and SOH of the battery, and realizes active balancing of the single-cell battery.

[0067] The battery cluster management unit is responsible for collecting various single battery information uploaded by the battery module management module 310, collecting various information of the battery group, and calculating and analyzing the charge state and health state of the battery group.

[0068] The battery stack management module 330 is responsible for collecting various battery information uploaded by the battery cluster management unit, and uploading all the information to the energy storage monitoring energy management unit 120, while communicating with the power conversion system unit to send the relevant abnormal information of the battery to the power conversion system unit.

[0069] In one embodiment of the present disclosure, the integrated energy storage control system in the present disclosure also supports real-time data synchronization and event triggering and response, ensuring that the data of each system can be synchronized to the integrated platform in real time, so as to achieve real-time monitoring and optimization of the overall system, and at the same time set an event triggering mechanism, such as abnormal battery status, market electricity price fluctuations, etc., so that the system can respond and adjust quickly.

[0070] It should be noted that personal information from users should be collected for legitimate and reasonable purposes and should not be shared or sold outside of these legitimate uses. In addition, such collection / sharing should be carried out after receiving the user's informed consent, including but not limited to notifying the user to read the user agreement / user notice and sign the agreement / authorization including authorization of relevant user information before the user uses the function. In addition, any necessary steps should be taken to protect and safeguard access to such personal information data and ensure that others who have access to personal information data comply with its privacy policy and procedures.

[0071] The present application is expected to provide an implementation scheme for users to selectively block the use or access of personal information data. That is, the present disclosure is expected to provide hardware and / or software to prevent or block access to such personal information data. Once the personal information data is no longer needed, the risk can be minimized by limiting data collection and deleting the data. In addition, when applicable, such personal information is de-identified to protect the privacy of the user.

[0072] In the description of the aforementioned embodiments, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0073] In addition, 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, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of this application, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0074] Any process or method description in a flowchart or otherwise described herein may be understood to represent a module, fragment or portion of code comprising one or more executable instructions for implementing the steps of a custom logical function or process, and the scope of the preferred embodiments of the present application includes alternative implementations in which functions may not be performed in the order shown or discussed, including performing functions in a substantially simultaneous manner or in the reverse order depending on the functions involved, which should be understood by technicians in the technical field to which the embodiments of the present application belong.

[0075] The logic and / or steps represented in the flowchart or otherwise described herein, for example, can be considered as an ordered list of executable instructions for implementing logical functions, and can be embodied in any computer-readable medium for use by an instruction execution system, device or apparatus (such as a computer-based system, a system including a processor, or other system that can fetch instructions from an instruction execution system, device or apparatus and execute instructions), or in combination with these instruction execution systems, devices or apparatuses. For the purpose of this specification, "computer-readable medium" can be any device that contains, stores, communicates, propagates or transmits a program for use by an instruction execution system, device or apparatus, or in combination with these instruction execution systems, devices or apparatuses. More specific examples (non-exhaustive list) of computer-readable media include the following: an electrical connection with one or more wires (electronic device), a portable computer disk box (magnetic device), a random access memory (RAM), a read-only memory (ROM), an erasable and programmable read-only memory (EPROM or flash memory), a fiber optic device, and a portable compact disk read-only memory (CDROM). In addition, the computer-readable medium may even be paper or other suitable medium on which the program is printed, since the program may be obtained electronically, for example, by optically scanning the paper or other medium and then editing, interpreting or processing in other suitable ways if necessary, and then stored in a computer memory.

[0076] It should be understood that the various parts of the present application can be implemented by hardware, software, firmware or a combination thereof. In the above-mentioned embodiments, multiple steps or methods can be implemented by software or firmware stored in a memory and executed by a suitable instruction execution system. For example, if implemented by hardware, as in another embodiment, it can be implemented by any one of the following technologies known in the art or their combination: a discrete logic circuit having a logic gate circuit for implementing a logic function for a data signal, a dedicated integrated circuit having a suitable combination of logic gate circuits, a programmable gate array (PGA), a field programmable gate array (FPGA), etc.

[0077] A person skilled in the art may understand that all or part of the steps in the method for implementing the above-mentioned embodiment may be completed by instructing related hardware through a program, and the program may be stored in a computer-readable storage medium, which, when executed, includes one or a combination of the steps of the method embodiment.

[0078] In addition, each functional unit in each embodiment of the present application may be integrated into a processing module, or each unit may exist physically separately, or two or more units may be integrated into one module. The above-mentioned integrated module may be implemented in the form of hardware or in the form of a software functional module. If the integrated module is implemented in the form of a software functional module and sold or used as an independent product, it may also be stored in a computer-readable storage medium.

[0079] The storage medium mentioned above may be a read-only memory, a magnetic disk or an optical disk, etc. Although the embodiments of the present application have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be understood as limiting the present application. A person of ordinary skill in the art may change, modify, replace and modify the above embodiments within the scope of the present application.

Claims

1. A fusion energy storage control system, characterized in that: include: A controller, an energy management unit, a battery management unit and a power conversion unit, wherein the controller is an integrated controller of the energy management unit, the battery management unit and the power conversion unit; The energy management unit is used to perform energy scheduling and optimization on the target energy storage system; The battery management unit is used to manage the batteries of the target energy storage system; The power conversion unit is used to convert the battery output power of the target energy storage system into different forms; The controller is used for integrated control of the energy management unit, the battery management unit and the power conversion unit.

2. The integrated energy storage control system according to claim 1, characterized in that: The controller further comprises: Data acquisition module, control and management module, connection module, safety protection and fault management module, user interface and remote monitoring module.

3. The integrated energy storage control system according to claim 2 is characterized in that: The connection module is used for: Provide standardized interfaces and communication protocols for the energy management unit, the battery management unit and the power conversion unit.

4. The integrated energy storage control system according to claim 3 is characterized in that: The standardized interface includes one or more of a CAN bus interface, a Modbus interface, and an Ethernet interface.

5. The integrated energy storage control system according to claim 2, characterized in that: The data acquisition module comprises: A plurality of sensors are used to collect operating data of the target energy storage system and operating data of batteries of the target energy storage system.

6. The integrated energy storage control system according to claim 2, characterized in that: The control and management module is used for: Provides control algorithms.

7. The integrated energy storage control system according to claim 2, characterized in that: The safety protection and fault management module is used for: Provides safety protection functions as well as fault monitoring and management strategies.

8. The integrated energy storage control system according to claim 2, characterized in that: The user interface and remote monitoring module include: Display device, used to provide intuitive battery status display, alarm display and real-time alarm.

9. The integrated energy storage control system according to claim 1, characterized in that: The battery management unit includes a battery module management module, a battery cluster management module and a battery stack management module.

10. The integrated energy storage control system according to claim 9, characterized in that: The controller of the battery module management module, the controller of the battery cluster management module and the controller of the battery stack management module are integrated into the controller.

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