gw-level energy storage demonstration and experimental verification system based on real-real-real architecture

Abstract

The application is based on a GW-level energy storage demonstration and experimental verification system with a real-number-real architecture, which adopts two sets of independent parallel energy management and control systems interconnected through system communication lines, namely a real energy management and control system and a digital energy management and control system; in particular, the digital energy management and control system adopts a double-task parallel system, a first task system maintains a digital virtual energy storage system corresponding to the real system, and synchronously executes the same instructions as the control instructions of the real energy management and control system, and synchronously operates with the real energy management and control system; a second task system generates digital virtual devices corresponding to each real device, reconstructs and generates a larger-scale or GW-level digital virtual energy storage system for experimental verification according to the experimental application requirements, executes and optimizes the configuration and control strategy of the digital virtual energy storage system, generates a simulation operation curve, and implements a new larger-scale battery energy storage system after meeting the verification requirements, so as to realize the experimental verification of the GW-level energy storage system with the real-number-real architecture.

Description

Technical Field

[0001] This invention belongs to the field of battery energy storage system technology, specifically relating to a GW-level energy storage demonstration and experimental verification system based on a real-data-real architecture. Background Technology

[0002] The construction of new power systems utilizing large-scale new energy sources requires substantial energy storage and regulation capabilities. To adapt to the current development of new energy, battery energy storage is one of the most commercially viable and rapidly adaptable energy storage methods. Therefore, the application and promotion of battery energy storage, especially lithium-ion battery energy storage, are becoming increasingly widespread and large-scale. Currently, some energy groups have proposed plans to construct GW-level large-scale battery energy storage systems. However, due to the lack of successful domestic and international examples, questions remain regarding how to determine the batteries, battery strings, battery storage unit systems, and the rational configuration and connection relationships of large-scale battery systems during implementation. How to scientifically design operation and control strategies, and the confirmation and verification of their safety, economy, and effectiveness remain unresolved. Experience with 100-megawatt-level battery energy storage systems shows that relying solely on computer simulations for design differs significantly from actual physical objects, application scenarios, and system construction and operation, failing to meet the needs of actual construction and operation. In particular, the investment in GW-level large-scale battery energy storage projects currently requires billions of RMB. Without effective experimental verification, the safety and effectiveness of the system design and operation control cannot be guaranteed, potentially leading to significant economic losses and safety risks. Summary of the Invention

[0003] To address the challenges of scientifically and effectively designing and constructing GW-level large-scale battery energy storage systems, this invention proposes a GW-level energy storage demonstration and experimental verification system based on a real-data-real architecture. This system comprises a system power bus, a physical energy management system, and a digital energy management system. These are two independent, parallel energy management systems interconnected via a system communication line. They are connected to the energy storage unit interfaces of each energy storage unit within the GW-level physical energy storage system via physical and digital system control lines and a one-to-two synchronous data transmitter, respectively. This forms a parallel dual-control system architecture physical operation demonstration system, where the physical energy management system controls the operation of each physical device. Furthermore, the digital energy management system internally generates multiple digital virtual devices corresponding to each physical device. These digital virtual devices are virtually connected and reconfigured according to human operation or agreed-upon scale and methods, while simultaneously setting control strategies for the digital virtual energy storage system. This constitutes a reconfigurable GW-level energy storage digital virtual system corresponding to the physical system, and the digital energy management system controls the operation of each digital virtual device.

[0004] The operation control method for a GW-level energy storage demonstration and experimental verification system based on a real-data-real architecture is as follows:

[0005] S1: The physical energy management system and the digital energy management system are connected and communicate normally with each device. The physical energy management system controls the operation of the corresponding devices according to the predetermined operation control strategy.

[0006] S2: Determine if there is a new experimental verification request? If yes, proceed to S3; otherwise, proceed to S4.

[0007] S3: The digital energy management system and the physical energy management system synchronously collect the operating parameters of each device and record and generate operating curves. At the same time, the digital energy management system accepts and executes experimental verification requests, optimizes or reconstructs the digital virtual energy storage system in parallel, and starts the digital virtual energy storage system for optimization and simulation operation according to manual operation or predetermined alternative control strategies, and generates corresponding operating curves. It then determines whether the control and operation meet the requirements. If they do, the new digital operation control strategy is sent to the physical energy management system and S4 is executed; otherwise, S3 is executed.

[0008] S4: When the physical energy management system receives a new control strategy from the digital energy management system, it adopts the new control strategy to control the operation of the newly built GW-level energy storage physical system and records and generates the corresponding operation curve;

[0009] S5: The digital energy management system synchronously collects and generates corresponding physical operation curves, and at the same time generates virtual operation curves for comparison to verify whether the operation of the energy storage physical system meets the design requirements. If yes, execute S2; otherwise, execute S3.

[0010] The GW-level energy storage demonstration and experimental verification system based on a real-data-real architecture is characterized in that the energy storage unit system includes: an energy storage converter, a battery management system (BMS), energy storage battery strings, a battery monitoring harness, an energy storage unit controller, an energy storage unit one-to-two communication interface, an energy storage unit communication line, and a one-to-two communication interface connection line. The energy storage battery strings are connected to the DC side of the energy storage converter. The BMS is connected to each individual battery cell in the energy storage battery string via the battery monitoring harness to monitor the voltage and temperature parameters of each individual battery cell in real time. The energy storage unit controller is connected to both the energy storage converter and the BMS via the energy storage unit communication line, and is also connected to the energy storage unit one-to-two communication interface via the one-to-two communication interface connection line, thus forming an independently controlled charging and discharging energy storage unit system.

[0011] The GW-level energy storage demonstration and experimental verification system based on a real-digital-real architecture, wherein the digital energy management system internally generates digital virtual devices corresponding to each physical device, is characterized by employing a dual-task parallel system. The first task system maintains a digital virtual energy storage system corresponding to the physical system and synchronously executes the same control commands as the physical energy management system, operating synchronously with it. The second task system utilizes the digital virtual devices generated internally by the digital energy management system to construct and generate a digital virtual energy storage system optimized or reconfigured in parallel according to the experimental verification request. Furthermore, the digital energy management system is characterized by controlled optimization and reconfiguration of the number of devices, system scale, and connection relationships. Using the device attributes and data parameters of the physical system, it reconstructs and generates a digital virtual energy storage system based on manual operation or preset alternative control strategies. The digital energy management system executes the digital virtual energy storage system control strategy according to the device functional attributes and operating characteristics of the physical system, generating simulated operating curves for each digital virtual device and the digital virtual energy storage system.

[0012] This invention relates to a GW-level energy storage demonstration and experimental verification system based on a real-digital-real architecture. It employs two independent, parallel energy management systems: a physical energy management system and a digital energy management system, interconnected via a system communication line. Specifically, the digital energy management system utilizes a dual-task parallel system. The first task system maintains a digital virtual energy storage system corresponding to the physical system and synchronously executes the same control commands as the physical energy management system, operating in sync with it. The second task system uses the digital energy management system to generate digital virtual devices corresponding to each physical device. Following experimental application requirements, it reconstructs and generates a larger-scale or GW-level digital virtual energy storage system for experimental verification. It then executes and optimizes the configuration and control strategies of the digital virtual energy storage system, generates simulated operating curves, and, after meeting verification requirements, implements a new, larger-scale battery energy storage system, thus achieving experimental verification of the GW-level energy storage system based on the real-digital-real architecture. Attached Figure Description

[0013] Figure 1 This is a schematic block diagram of the principle of a GW-level energy storage demonstration and experimental verification system based on a real-data-real architecture.

[0014] Figure 2 It is a schematic block diagram of an energy storage unit system consisting of independently controlled charging and discharging. Detailed Implementation

[0015] As an example, a GW-level energy storage demonstration and experimental verification system based on a real-data-real architecture is described in conjunction with the accompanying drawings. However, the described embodiments are only a part of the embodiments of the present invention applied to the GW-level energy storage demonstration and experimental verification system based on a real-data-real architecture, and not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention; the technology and solutions of the present invention are not limited to the content given in this example.

[0016] This invention discloses a battery cluster and energy storage system with autonomous and reconfigurable battery array. It utilizes a relatively small-scale and actually operating battery energy storage demonstration system and its full-element physical equipment characteristics and operating parameters. Through a one-to-two synchronous data transmission device (4), the real-time data of the physical equipment is synchronously transmitted to the physical energy management system (2) and the digital energy management system (3). The digital energy management system (3) uses the equipment attributes and data parameters of the physical system to reconstruct and generate a larger-scale or GW-level digital virtual energy storage system for experimental verification according to the experimental application requirements. It executes and optimizes the configuration and control strategy of the digital virtual energy storage system, generates simulated operating curves, and implements a new larger-scale battery energy storage system after meeting the verification requirements. The technical solution of this invention will be described below in terms of principle and concept (but the content of this invention is not limited thereto).

[0017] like Figure 1 As shown, the GW-level energy storage demonstration and experimental verification system based on the real-data-real architecture includes a system power bus (1), a physical energy management system (2), and a digital energy management system (3), which are two independent and parallel energy management systems interconnected by a system communication line (8); and are respectively connected to the energy storage units in the GW-level energy storage physical system through a one-to-two synchronous data transmission device (4) via the physical system control line (6) and the digital system control line (7). The communication interface (56) constitutes a physical operation demonstration system of parallel dual control system architecture, and the physical energy management system (2) controls the operation of each physical device; its feature is that multiple digital virtual devices corresponding to each physical device are generated internally by the digital energy management system (3), and the digital virtual devices are virtually connected and reconstructed according to the scale and method agreed upon by the personnel operation or agreement, and the control strategy of the digital virtual energy storage system is set at the same time; it constitutes a reconstructable GW-level energy storage digital virtual system corresponding to the physical device, and the digital energy management system (3) controls the operation of each digital virtual device;

[0018] The operation control method for a GW-level energy storage demonstration and experimental verification system based on a real-data-real architecture is as follows:

[0019] S1: The physical energy management system (2) and the digital energy management system (3) are connected and communicate normally with each device. The physical energy management system (2) controls the operation of the corresponding device according to the predetermined operation control strategy.

[0020] S2: Determine if there is a new experimental verification request? If yes, proceed to S3; otherwise, proceed to S4.

[0021] S3: The digital energy management system (3) and the physical energy management system (2) synchronously collect the operating parameters of each device and record and generate operating curves. At the same time, the digital energy management system (3) accepts and executes experimental verification requests, optimizes or reconstructs the digital virtual energy storage system in parallel, starts the digital virtual energy storage system for optimization and simulation operation according to manual operation or predetermined alternative control strategies, and generates corresponding operating curves. It judges whether the control and operation meet the requirements. If they do, the new digital operation control strategy is sent to the physical energy management system (2) and S4 is executed; otherwise, S3 is executed.

[0022] S4: When the physical energy management system (2) receives a new control strategy from the digital energy management system (3), it adopts the new control strategy to control the operation of the newly built GW-level energy storage physical system and records and generates the corresponding operation curve;

[0023] S5: The digital energy management system (3) synchronously collects and generates the corresponding physical operation curves, and at the same time generates virtual operation curves and compares them to verify whether the operation of the energy storage physical system meets the design requirements. If yes, then execute S2; otherwise, execute S3.

[0024] The GW-level energy storage demonstration and experimental verification system based on the real-data-real architecture is characterized in that the energy storage unit system (5) includes: an energy storage converter (51), a battery management system (BMS) (52), an energy storage battery string (53), a battery monitoring harness (54), an energy storage unit controller (55), an energy storage unit one-to-two communication interface (56), an energy storage unit communication line (57), and a one-to-two communication interface connection line (58). The energy storage battery string (53) is directly connected to the energy storage converter (51). On the current side, the battery management system (BMS) (52) is connected to each battery cell in the energy storage battery string (53) through the battery monitoring harness (54) to monitor the voltage and temperature parameters of each battery cell in real time. The energy storage unit controller (55) is connected to the energy storage converter (51) and the battery management system (BMS) (52) through the energy storage unit communication line (57), and is connected to the energy storage unit one-to-two communication interface (56) through the one-to-two communication interface connection line (58) to form an independent controlled charging and discharging energy storage unit system.

[0025] The GW-level energy storage demonstration and experimental verification system based on the real-digital-real architecture, wherein the digital energy management system (3) generates digital virtual devices corresponding to each physical device, is characterized in that the digital energy management system adopts a dual-task parallel system. The first task system maintains a digital virtual energy storage system corresponding to the physical system and executes the same instructions as the control instructions of the physical energy management system (2) synchronously, and runs synchronously with the physical energy management system (2); the second task system uses the digital virtual devices generated by the digital energy management system (3) to construct and generate a digital virtual energy storage system that is optimized or reconstructed in parallel according to the experimental verification request. The digital energy management system (3) optimizes and reconfigures the number of devices, system scale and connection relationship in a controlled manner. It uses the device attributes and data parameters of the physical system to reconstruct and generate a digital virtual energy storage system according to the alternative control strategy and preset according to manual operation. The digital energy management system (3) executes the digital virtual energy storage system control strategy according to the device functional attributes and operating characteristics of the physical system to generate the simulated operation curves of each digital virtual device and digital virtual energy storage system.

[0026] This invention is based on a real-digital-real architecture GW-level energy storage demonstration and experimental verification system. It adopts two independent and parallel energy management systems, a physical energy management system (2) and a digital energy management system (3), which are interconnected by a system communication line (8). In particular, the digital energy management system adopts a dual-task parallel system. The first task system is the same as the physical energy management system (2) and runs synchronously with the physical energy management system (2). The second task system is to build and generate a digital virtual energy storage system corresponding to the physical system and run synchronously with the physical energy management system (2). The digital energy management system (3) optimizes and reconfigures the number of devices, system scale and connection relationship in a controlled manner. It uses the device attributes and data parameters of the physical system to reconstruct and generate an experimental verification digital virtual energy storage system. According to the device functional attributes and operating characteristics of the physical system, it executes the control strategy of the digital virtual energy storage system and generates the simulated operating curves of each digital virtual device and the digital virtual energy storage system. After meeting the verification requirements, a new and larger-scale battery energy storage system is implemented to realize the experimental verification of the real-digital-real architecture GW-level energy storage system.

[0027] Specific implementation methods have been provided above, but the present invention is not limited to the described implementation methods. For those skilled in the art, designing various modified combinations, formulas, and parameters based on the technical solutions of the present invention does not require creative effort. Changes, modifications, substitutions, and variations made to the implementation methods without departing from the principles and conceptual framework of the present invention still fall within the protection scope of the present invention.

Claims

1. A GW-level energy storage demonstration and experimental verification system based on a real-data-real architecture, comprising a system power bus, a physical energy management system, and a digital energy management system, which are two independent and parallel energy management systems interconnected via system communication lines; and connected to the energy storage unit one-to-two communication interfaces in each energy storage unit system of the GW-level energy storage physical system via physical system control lines and digital system control lines through a one-to-two synchronous data transmitter, forming a physical operation demonstration system with a parallel dual-control system architecture, wherein the physical energy management system controls the operation of each physical device; its characteristic is that... The digital energy management system generates multiple digital virtual devices corresponding to each physical device. These digital virtual devices are virtually connected and reconfigured according to human operation or agreed scale and method. At the same time, the control strategy of the digital virtual energy storage system is set. This constitutes a reconfigurable GW-level energy storage digital virtual system corresponding to the physical devices, and the digital energy management system controls the operation of each digital virtual device. The operation control method for a GW-level energy storage demonstration and experimental verification system based on a real-data-real architecture is as follows: S1: The physical energy management system and the digital energy management system are connected and communicate normally with each device. The physical energy management system controls the operation of the corresponding devices according to the predetermined operation control strategy. S2: Determine if there is a new experimental verification request; if yes, proceed to S3; otherwise, proceed to S4. S3: The digital energy management system and the physical energy management system synchronously collect the operating parameters of each device and record and generate operating curves. At the same time, the digital energy management system accepts and executes experimental verification requests, optimizes or reconstructs the digital virtual energy storage system in parallel, and starts the digital virtual energy storage system for optimization and simulation operation according to manual operation or predetermined alternative control strategies, and generates corresponding operating curves. It then determines whether the control and operation meet the requirements. If they do, the new digital operation control strategy is sent to the physical energy management system and S4 is executed; otherwise, S3 is executed. S4: When the physical energy management system receives a new control strategy from the digital energy management system, it adopts the new control strategy to control the operation of the newly built GW-level energy storage physical system and records and generates the corresponding operation curve; S5: The digital energy management system synchronously collects and generates corresponding physical operation curves, and at the same time generates virtual operation curves and compares them to verify whether the operation of the energy storage physical system meets the design requirements. If yes, then execute S2; otherwise, execute S3.

2. The GW-level energy storage demonstration and experimental verification system based on a real-data-real architecture as described in claim 1, characterized in that, The energy storage unit system includes: an energy storage converter, a battery management system (BMS), energy storage battery strings, a battery monitoring harness, an energy storage unit controller, an energy storage unit one-to-two communication interface, an energy storage unit communication line, and a one-to-two communication interface connection line. The energy storage battery strings are connected to the DC side of the energy storage converter. The BMS is connected to each individual battery cell in the energy storage battery strings via the battery monitoring harness to monitor the voltage and temperature parameters of each individual battery cell in real time. The energy storage unit controller is connected to both the energy storage converter and the BMS via the energy storage unit communication line, and is also connected to the energy storage unit one-to-two communication interface via the one-to-two communication interface connection line, thus forming an independently controlled charging and discharging energy storage unit system.

3. The GW-level energy storage demonstration and experimental verification system based on a real-digital-real architecture as described in claim 1, wherein the digital energy management system internally generates digital virtual devices corresponding to each physical device, characterized in that, The digital energy management system adopts a dual-task parallel system. The first task system maintains a digital virtual energy storage system corresponding to the physical system and executes the same control commands as the physical energy management system synchronously, and operates synchronously with the physical energy management system. The second task system utilizes the digital virtual devices generated internally by the digital energy management system to construct and generate a digital virtual energy storage system optimized or reconfigured in parallel according to experimental verification requests. Its characteristic is that the digital energy management system optimizes and reconfigures the number of devices, system scale, and connection relationships in a controlled manner. Using the device attributes and data parameters of the physical system, it reconstructs and generates a digital virtual energy storage system based on alternative control strategies and preset options, operated manually or by default. The digital energy management system executes the control strategy of the digital virtual energy storage system according to the device functional attributes and operating characteristics of the physical system, generating simulated operating curves for each digital virtual device and the digital virtual energy storage system.

Images