CN223007338U - Energy storage and current transformation integrated cabin - Google Patents
Energy storage and current transformation integrated cabin Download PDFInfo
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- CN223007338U CN223007338U CN202421607264.9U CN202421607264U CN223007338U CN 223007338 U CN223007338 U CN 223007338U CN 202421607264 U CN202421607264 U CN 202421607264U CN 223007338 U CN223007338 U CN 223007338U
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Abstract
本实用新型提供一种储能变流一体舱，所述储能变流一体舱包括储能变流器和电池控制单元；其中，所述储能变流器和所述电池控制单元之间通信连接；所述储能变流器用于根据电池系统的运行状态控制所述电池系统的充电过程和/或放电过程，并将所述电池系统的直流电转换为交流电；所述电池控制单元用于监控电池系统的运行状态，并将所述运行状态发送至所述储能变流器。本公开将储能变流一体舱同时集成储能变流器和电池控制单元，简化了系统结构，减少了外部连接线缆，降低了系统的复杂性。同时，这种集成化设计不仅有助于提高整个系统的效率，可以降低生产和安装维护成本。
The utility model provides an integrated energy storage and conversion cabin, which includes an energy storage inverter and a battery control unit; wherein the energy storage inverter and the battery control unit are communicatively connected; the energy storage inverter is used to control the charging process and/or discharging process of the battery system according to the operating state of the battery system, and convert the direct current of the battery system into alternating current; the battery control unit is used to monitor the operating state of the battery system, and send the operating state to the energy storage inverter. The present invention integrates the energy storage inverter and the battery control unit in the integrated energy storage and conversion cabin at the same time, simplifies the system structure, reduces external connection cables, and reduces the complexity of the system. At the same time, this integrated design not only helps to improve the efficiency of the entire system, but also can reduce production and installation and maintenance costs.
Description
Technical Field
The disclosure relates to the field of energy storage, in particular to an energy storage and current transformation integrated cabin.
Background
With the rapid development of renewable energy and distributed energy applications, industrial and commercial energy storage systems are widely used in the fields of peak Gu Tao, demand management, backup power, and the like. However, the existing industrial and commercial energy storage design process faces some challenges, and places higher demands on the energy storage system, such as large occupied area, high cost, low efficiency, large volume, transportation and high limit. The traditional industrial and commercial energy storage system generally comprises an energy storage battery, a PCS (energy storage converter), a high-voltage box, a control system and other modules, and still adopts a design mode of large storage, so that the defects of control and protection redundancy, high cost, low space utilization rate, multiple links, low efficiency and the like exist, and the system is not suitable for industrial and commercial application scenes. At present, aiming at the practical application scene of industrial and commercial energy storage systems, how to adopt the design modes of medium storage and small storage is a subject faced in the field.
Disclosure of utility model
The technical problem to be solved by the present disclosure is to overcome the defects of redundant control, high cost, low space utilization and low efficiency existing in the large storage design mode of the industrial and commercial energy storage system in the prior art, and provide an energy storage and conversion integrated cabin.
The technical problems are solved by the following technical scheme:
The disclosure provides an energy storage and current transformation integrated cabin, which comprises a shell, an energy storage current transformer, a battery control unit, a power grid interface and a battery interface, wherein the energy storage current transformer, the battery control unit, the power grid interface and the battery interface are integrated in the shell;
The power grid interface is used for connecting the energy storage converter and a power grid;
The battery interface is used for connecting the energy storage converter and a battery system;
The battery control unit is used for monitoring the running state of the battery system and sending a switch switching instruction to the energy storage converter;
the energy storage converter is used for responding to the switch switching instruction to switch the switch state of a switch contained in the energy storage converter so as to switch the battery state of the battery system, wherein the battery state comprises a charging state and a discharging state.
Optionally, the energy storage and conversion integrated cabin further comprises an isolating switch, and the energy storage converter is connected with the battery system through the isolating switch.
Optionally, the energy storage and conversion integrated cabin further comprises a contactor, and the energy storage converter is connected with the battery system through the contactor.
Optionally, the energy storage and conversion integrated cabin further comprises a fuse, and the energy storage and conversion integrated cabin is connected with the battery system through the fuse.
Optionally, the energy storage and conversion integrated cabin further comprises a relay, and the energy storage inverter is connected with the power grid through the relay.
Optionally, the energy storage and conversion integrated cabin further comprises a circuit breaker, and the energy storage converter is connected with the power grid through the circuit breaker.
Optionally, the energy storage and conversion integrated cabin further comprises an in-situ monitoring module, and the in-situ monitoring module is respectively in communication connection with the energy storage converter and the battery control unit;
The in-situ monitoring module is used for monitoring the energy storage converter and the battery control unit, and/or is used for communication interaction between the energy storage converter and the battery control unit.
Optionally, the energy storage and conversion integrated cabin further comprises a communication module, wherein the communication module is used for data communication between the energy storage converter and the battery control unit.
Optionally, the energy storage and conversion integrated cabin further comprises at least one of the following:
the fire fighting device is electrically connected with the on-site monitoring module;
the anti-soaking device is electrically connected with the on-site monitoring module;
The door magnetic device is electrically connected with the on-site monitoring module;
And the emergency stop device is electrically connected with the on-site monitoring module.
Optionally, the energy storage converter and the battery control unit are packaged on a control board.
Optionally, the energy storage converter and the battery control unit share at least one power supply interface;
And/or the energy storage converter and the battery control unit share at least one communication interface.
On the basis of conforming to the common knowledge in the art, the preferred conditions can be arbitrarily combined to obtain the preferred examples of the disclosure.
The energy storage and conversion integrated cabin has the positive progress effects that the energy storage and conversion integrated cabin is integrated with the energy storage and conversion integrated cabin and the battery control unit, so that the energy storage and conversion integrated cabin has more comprehensive functions, and meanwhile has the functions of bidirectional conversion of electric energy and charge and discharge management of a battery. Such a design simplifies the system architecture, reduces external connection cables, and reduces the complexity of the system. Meanwhile, the integrated design is beneficial to improving the efficiency of the whole system and can reduce the production, installation and maintenance costs.
Drawings
Fig. 1 is a schematic diagram of an energy storage system and an energy storage and conversion integrated cabin according to an exemplary embodiment of the present disclosure;
fig. 2 is a schematic diagram of an energy storage and conversion integrated cabin according to an exemplary embodiment of the present disclosure.
Fig. 3 is a schematic view of another energy storage and conversion integrated cabin according to an exemplary embodiment of the present disclosure.
Fig. 4 is a schematic panel configuration diagram of an energy storage and conversion integrated cabin according to an exemplary embodiment of the present disclosure.
Fig. 5 is a schematic diagram of a communication architecture of an energy storage system according to an exemplary embodiment of the present disclosure.
Detailed Description
The present disclosure is further illustrated by way of examples below, but is not thereby limited to the scope of the examples described.
Prefix words such as "first" and "second" are used in the embodiments of the present disclosure, and are merely for distinguishing between different description objects, and there is no limitation on the location, order, priority, number, content, or the like of the described objects. The use of ordinal words and the like in embodiments of the present disclosure to distinguish between the prefix words describing the object does not limit the described object, and statements of the described object are to be taken in the claims or in the context of the embodiments and should not be construed as unnecessary limitations due to the use of such prefix words. In addition, in the description of the present embodiment, unless otherwise specified, the meaning of "a plurality" is two or more.
In the embodiment of the disclosure, the related processes of collecting, storing, using, processing, transmitting, providing, disclosing and the like of the personal information of the user accord with the rules of related laws and regulations, and do not violate the public order colloquial.
Example 1
Fig. 1 is a schematic diagram of an energy storage system for industrial and commercial energy storage and an energy storage and conversion integrated cabin according to an exemplary embodiment of the present disclosure, and referring to fig. 1, it is known that the energy storage system applied to industrial and commercial energy storage includes an energy storage and conversion integrated cabin 12, where the energy storage and conversion integrated cabin 12 includes an energy storage converter 121 (PCS, power Conversion System) and a battery control unit 122 (BCU, battery Control Unit), where the energy storage converter 121 and the battery control unit 122 are in communication connection, the energy storage converter 121 is configured to switch a switch state of a switch included in the energy storage converter 121 in response to the switch switching instruction to switch a battery state of the battery system 11, where the battery state includes a charging state and a discharging state
The battery control unit 122 is configured to monitor the operation state of the battery system 1 and send a switch switching instruction to the energy storage converter 121.
In addition, the energy storage and conversion integrated compartment comprises a housing, in which the energy storage and conversion unit 121 and the battery control unit 122 are integrated. Wherein the energy storage converter 121 is electrically connected to the battery control unit 122. The energy storage and conversion integrated cabin further comprises a battery interface and a power grid interface, wherein the power grid interface is used for connecting the energy storage converter 121 and a power grid, and the battery interface is used for connecting the energy storage converter 121 and the battery system 11.
Alternatively, the energy storage converter 121 and the battery control unit 122 are packaged in one module and placed in a housing.
Optionally, the energy storage converter 121 and the battery control unit 122 share at least one power supply interface, and/or the energy storage converter 121 and the battery control unit 122 share at least one communication interface.
The energy storage converter 121 and the battery control unit 122 are packaged in one module and are arranged in the shell in the energy storage and conversion integrated cabin, and at least share one power supply interface and/or communication interface, so that the required installation space is reduced, and the overall structure is more compact. This is particularly important for deploying energy storage systems in space-constrained environments. At the same time, the common power supply interface and the communication interface can significantly reduce the number of internal connection wires and cables, which not only reduces the cost, but also simplifies the installation process and possibly improves the reliability of the system. Based on the compactness of the structure, the energy transmission device is beneficial to reducing the loss in the energy transmission process, and the use of wires and connectors is reduced, so that the energy conversion efficiency of the whole system is improved, and the production and maintenance costs are reduced. The modularized design makes the future maintenance and upgrade more convenient, and only the corresponding module needs to be replaced or upgraded.
It should be appreciated that in conventional energy storage systems, the Battery control unit and Battery management unit (BMU, battery Module Unit) are typically subordinate levels of the Battery management system (BMS, battery MANAGEMENT SYSTEM). The BCU and PCS in the BMS are combined and integrated into the same energy storage and conversion integrated cabin. The battery system 11 in the present disclosure includes a plurality of battery clusters (battery packs) and a battery management unit, and its main function is to monitor and manage individual battery modules, ensuring the safety and performance of the battery. The method comprises the steps of monitoring physical parameters such as voltage, temperature and current of a battery module in real time, evaluating the states of the battery, including state of charge (SOC) and state of health (SOH), diagnosing potential problems of the battery, providing early warning when abnormality occurs, preventing performance of the battery from being reduced or safety accidents from occurring, and ensuring that the performance of all single batteries in a battery pack is consistent due to the fact that the BMU is provided with an equalization management function for prolonging the service life of the battery. In the energy storage system, the BMU generally cooperates with other components such as a general controller unit (BAMS), a battery pack end control and management unit (BCMU), and the like to form a complete battery management system. The system not only can provide bidirectional active lossless equalization, but also can exchange data with an Energy Management System (EMS) through internal communication so as to realize more efficient energy management and optimization. In particular, the BMU in the present disclosure establishes a communication connection with the battery control unit 122, and such connection relationship will not be described in detail later. Wherein the battery control unit is commercially available, the present utility model is not related to improvements in the computer software of the battery control unit.
The energy storage converter 121 is a core component of the energy storage and conversion integrated cabin 12, and is responsible for converting Direct Current (DC) stored in the battery system 11 into Alternating Current (AC) that can be supplied to a power grid or a load. The energy storage converter 121 controls the charging and discharging processes according to the operating state of the battery system 11, ensuring efficient conversion of electric energy. The energy storage converter 121 has an energy conversion function, i.e. is capable of performing ac-dc conversion, which means that it can convert dc stored by a battery (battery cluster) into ac that can be supplied to a power grid or a load, and at the same time rectify ac of the power grid into dc to charge the energy storage system. This bi-directional conversion function enables the energy storage system to flexibly cope with different power demands. Meanwhile, the energy storage converter 121 also has a bridge connection function, namely, the energy storage converter serves as a bridge for connecting energy storage equipment and a power system in the energy storage system, so that effective flow of electric energy and stable operation of the system are ensured. The energy storage inverter can provide high-quality electric energy, so that the electricity cost is reduced, and the electricity efficiency is improved. This is very beneficial both for the stability of the power system and for the economic benefits of the user.
The main function of the battery control unit 122 is to monitor the operation state of the battery system 11, including the key parameters of voltage, current, temperature, etc., and send these information to the energy storage converter 121 in real time. Therefore, the converter can adjust the charge-discharge strategy according to the actual state of the battery, and the performance and the service life of the battery are optimized. Besides the energy conversion function of the energy storage converter 121, the energy storage and conversion integrated cabin 12 also has multiple functions of battery management, system protection, energy management and the like, and the intelligent level and the operation efficiency of the whole system are improved.
Optionally, the energy storage converter and the battery control unit are packaged in one module and placed in the housing.
Optionally, the energy storage converter and the battery control unit share at least one power supply interface, and/or the energy storage converter and the battery control unit share at least one communication interface.
The energy storage converter and the battery control unit are packaged in one module and are arranged in the shell in the energy storage conversion integrated cabin, and at least share one power supply interface and/or communication interface, so that the required installation space is reduced, and the overall structure is more compact. This is particularly important for deploying energy storage systems in space-constrained environments. At the same time, the common power supply interface and the communication interface can significantly reduce the number of internal connection wires and cables, which not only reduces the cost, but also simplifies the installation process and possibly improves the reliability of the system. Based on the compactness of the structure, the energy transmission device is beneficial to reducing the loss in the energy transmission process, and the use of wires and connectors is reduced, so that the energy conversion efficiency of the whole system is improved, and the production and maintenance costs are reduced. The modularized design makes the future maintenance and upgrade more convenient, and only the corresponding module needs to be replaced or upgraded.
In summary, the energy storage and conversion integrated cabin 12 of the present disclosure provides a highly efficient, intelligent, and multifunctional energy management solution for users through a highly integrated design. The energy storage inversion system not only has wide application in industrial and commercial energy storage, but also plays a key role in a plurality of fields such as an electric vehicle charging system, a micro-grid, a remote communication site and the like.
The energy storage and conversion integrated cabin 12 can further comprise at least one of a disconnecting switch, a contactor, a relay, a circuit breaker and a fuse, wherein the connection relationship of the components can meet at least one of the following conditions that the energy storage converter 121 and the battery system 11 are connected through the contactor, the energy storage converter 121 and the battery system 11 are connected through the fuse, the energy storage inverter 121 and the power grid are connected through the relay, and the energy storage converter 121 and the power grid are connected through the circuit breaker.
The isolating switch provides electrical isolation between the battery system 11 and other parts of the inversion cabin so as to facilitate maintenance or cut off the power supply rapidly under abnormal conditions, the contactor is used for remotely or automatically controlling the opening and closing of the circuit and is matched with the fuse to provide overload and short-circuit protection, the relay is used for realizing an automatic switching function in the circuit and is connected with the contactor in parallel to jointly complete control and protection of the circuit, and the fuse is used as a safety device, and when the current exceeds a specified value, the fuse is fused to protect the circuit from damage and is matched with the contactor to be used.
Optionally, the energy storage and conversion integrated cabin 12 further comprises a power grid interface, and the power grid interface is respectively connected with the energy storage converter 121 and a power grid.
The grid interface is interposed between the energy storage and conversion integrated bay 12 and the external grid, so that the electrical energy output by the battery system 11 can be fed into the grid or, if necessary, from the grid, fed into the battery system 11.
Optionally, the energy storage and conversion integrated cabin 12 further comprises a battery interface, and the battery interface is connected with the isolating switch.
Wherein a battery interface is interposed between the isolating switch and the battery system 11, ensuring that the battery pack can be safely connected to the inverter compartment.
In one embodiment, reference may be made to fig. 2, where M0 is a disconnector, M1 is a relay, M2 is a contactor, Q1 is a circuit breaker, CT1, CT2 and CT3 are current transformers, FU1 and FU2 are fuses. The device is characterized in that the positive electrode output end and the negative electrode output end of a battery system are respectively connected with a fuse FU1 and a fuse FU2 through a disconnecting switch M0, the fuse FU1 and the fuse FU2 are respectively connected with a battery positive electrode interface and a battery negative electrode interface through a contactor M2, a circuit between a PCS and a power grid is four lines corresponding to a three-phase four-wire system, three phase lines are respectively connected with current transformers CT1, CT2 and CT3 through a relay M1, and the three current transformers are connected with a circuit breaker which is arranged between the power grid and the current transformers.
In another embodiment, reference may be made to fig. 3, wherein BATp is the positive output of the battery system 11, BATn is the negative output of the battery system 11, the switches connected to BATp and BATn, respectively, are disconnectors, two disconnectors in fig. 3, rly1 is a contactor, two contactors in fig. 3, SS-Rly1 is a relay, fuse is a Fuse, two fuses are in fig. 3, two fuses are connected to the inputs of the PCS, and the outputs of the PCS are L A、LB and L C, respectively, to correspond to a three-phase four-wire power system commonly used in low voltage distribution networks, particularly in supply residential areas, commercial buildings, and some industrial facilities. In particular to the civil field, the system has the advantage of simultaneously providing three-phase and single-phase power sources and meeting diversified power requirements. It should be appreciated that a three-phase four-wire system includes three phase wires (L A、LB and L C) and one neutral wire (N-wire or neutral wire). In low voltage power distribution systems, this configuration allows for the simultaneous transmission of three-phase power and single-phase power. The three-phase electric energy is mainly used for high-power equipment such as an air conditioning system and a water pump, and the single-phase electric energy is suitable for daily electric equipment such as household appliances. Therefore, the power grid interfaces arranged at the output end of the PCS need to correspond to 4 interfaces, which respectively correspond to the L A、LB、LC and the N lines. Specifically, referring to the panel configuration embodiment of the integrated energy storage and conversion cabin 12 shown in fig. 4, it can be seen from fig. 4 that the panel includes a PE interface 31, a PE interface 32, a grid interface 33, a grid interface 34, a grid interface 35, a grid interface 36,220V, a utility interface 37, an ac handle 38, a dc handle 39, a lamp panel 40, a battery positive interface 41, a battery negative interface 42, a communication bar 43, an rj45 interface 44, an rj45 interface 45, a com interface 46, and a com interface 47.
Among these, the PE interfaces 31 and 32 are used for connection with PE lines, which are all referred to as protective earthing conductor, i.e. protection conductors and PE lines are conductors for protection of electrical equipment from ground. The grid interfaces 33, 34, 35, 36 correspond to three phase lines (L A、LB and L C) and one neutral line (N line or neutral line) of a three-phase four-wire system, respectively. The 220V mains interface 37 is used for connecting the mains to supply power for the energy storage and conversion integrated cabin. The battery positive electrode interface 41 and the battery negative electrode interface 42 are connected to the positive electrode output terminal and the negative electrode output terminal of the battery system 11, respectively. The AC handle 38 is a handle controlled at the AC end and the DC handle 39 is a handle controlled at the DC end and the AC handle includes a switch control, and the lamp panel 40 is an indicator lamp for displaying the working state of the energy storage and conversion integrated cabin.
Optionally, the energy storage and conversion integrated cabin 12 further includes an in-situ monitoring module (SCU), which is communicatively connected to the energy storage converter 121 and the battery Control Unit 122, respectively;
The in-situ monitoring module is used for monitoring the energy storage converter 121 and the battery control unit 122, and/or is used for communication interaction between the energy storage converter 121 and the battery control unit 122.
The in-situ monitoring module is responsible for monitoring the operating states of the energy storage converter 121 and the battery control unit 122, and possibly also for communication interactions between them, in order to process data and execute commands in time. Optionally, in the power and energy storage system, the SCU is responsible for local or subsystem monitoring and control functions, working in conjunction with a main control unit (Main Control Unit, MCU) to ensure efficient and stable operation of the system. The specific model of the in-situ monitoring module varies according to the manufacturer and application scene, such as SCU-01K4CN sold in the market.
Optionally, the energy storage and conversion integral cabin 12 further includes a communication module for communicating with the energy management module 14.
The energy storage system further comprises an energy management module 14, and the energy management module 14 corresponds to an energy management system (EMS, energy Management System) and is responsible for monitoring, controlling and optimizing the production, storage and consumption of energy, ensuring the efficient use of energy and supporting the integration and management of renewable energy. In power systems, smart grids, and industrial and commercial energy storage solutions, the energy management module 14 plays a vital role. Thus, to enable communicative interaction with the energy management module 14, the communication module provides the necessary communication interface to enable the energy storage and conversion integral pod 12 to receive commands from, or send status information to, the energy management module 14.
With the development of the energy storage and conversion integrated cabin, it is necessary to perform communication between the components, based on the foregoing, referring to fig. 5, which is a schematic diagram of a communication architecture of an energy storage system for industrial and commercial energy storage according to an exemplary embodiment of the present disclosure, it can be known from fig. 5 that a monitoring in place Unit (SCU), in addition to being communicatively connected to an energy storage converter (PCS) and a Battery Control Unit (BCU), is further externally connected to an antenna and a network, so as to establish wired/wireless communication with the external connection. And the device is also respectively in communication connection with an air conditioner, a fire-fighting device, an anti-soaking device, a door magnetic device, an LED indicator lamp, a shunt tripping device and an emergency stop device. In addition, the BCU establishes communication connection with an insertion box of each battery of the battery system through the CAN bus, and each insertion box corresponds to the BMU.
Among other things, fire protection devices generally refer to a complete set of equipment and measures in an energy storage system for preventing and coping with fire. This may include gas fire extinguishing systems, sprinkler systems, fire alarms and the like which are capable of responding quickly in the event of a fire to control or extinguish the fire and to protect the energy storage facilities from the fire, in particular, the gas detector and alarm system should be installed in flammable areas and the fire extinguisher and fire box should be placed in an easily accessible location, and the anti-flooding means is a safety device to prevent intrusion of water into the interior of the energy storage and conversion integral chamber. In energy storage systems, electrical devices such as batteries are highly sensitive to water, which may cause short circuits or even fire hazards once a water flooding condition occurs. Therefore, the anti-soaking device can detect moisture invasion and trigger an alarm or other emergency response to prevent further damage, is usually arranged at a low-lying position of a cabin body or a position with high potential water accumulation risk so as to ensure that the water can be timely found and taken when soaking, and the door magnetic device is a sensor for monitoring the switch state of the energy storage and current transformation integrated cabin door. The emergency stop device can detect when the door is opened or closed and give an alarm under abnormal conditions, ensures that the physical safety of the energy storage system is not threatened by unauthorized access, is usually arranged on a door frame and is electrically connected with a local monitoring module, ensures that the alarm can be given under any unauthorized opening condition, and is also called an emergency stop switch, thus being an important safety mechanism in the energy storage and conversion integrated cabin. When a dangerous situation (e.g., fire, electrical fault, etc.) is identified by a system operator, the scram device can be quickly activated to shut off power, stop all of the running equipment to avoid further injury or loss, and should be installed in a location that is readily accessible to the operator, such as inside a door or near a console, to immediately take action in an emergency situation. Shunt tripping is a device for remotely operating a circuit breaker to trip, typically present as part of or an accessory to the circuit breaker. The shunt tripping mainly comprises two parts, namely a shunt coil and a release. When the shunt coil receives a specified voltage signal, the shunt coil can generate electromagnetic force to drive the release to act, so that the circuit breaker trips and the circuit is cut off. This mechanism is particularly important in fire alarm systems because it allows remote control of the circuit breaker of a non-fire load to ensure that the power supply can be quickly shut down in an emergency situation, preventing the spread of fire. In addition, the operating power source of the shunt tripping is usually from a secondary direct current total power source, which means that the secondary direct current total power source is used, and the power source can provide stable voltage to ensure that the shunt tripping device can reliably perform the switching operation when necessary. The specific installation location of each safety device in the energy storage and conversion integrated compartment generally complies with industry specifications and manufacturer design requirements. The following are possible mounting positions for the respective devices:
The interfaces of the SCU body specifically comprise 2 network ports (Ethernet ports), 4 serial ports (serial communication ports), 8 GPIOs (general purpose input/output ports), 6 USB (universal serial bus ports), 1 path HDMI (high definition multimedia interface) and 1 path VGA (video graphics array interface), and the PCS adopts an RS-485 communication protocol for communication. RS-485 is a communication protocol for differential signaling, which is suitable for long-distance and high-rate data transmission. The BCU and SCU also use the RS-485 protocol when communicating with the superordinate devices. The 2 antennas are arranged outside the energy storage and conversion integrated cabin, so that a better signal receiving or transmitting effect can be provided. The input-output interfaces of the SCU are GPIOs and the operating voltage range of these GPIO interfaces is 0 to 5 volts. A relay is added in a shunt tripping mechanism of the BCU to assist in completing the functions of automatic adjustment, safety protection and the like.
The modules together form a safety protection system of the energy storage and conversion integrated cabin, and the safety protection system is matched with each other to ensure the safe operation of the energy storage station under various potential dangerous conditions. Compared with the traditional scheme, the technical scheme can effectively improve the discharge capacity, efficiency and reduce the occupied area and cost. Meanwhile, the system efficiency of the energy storage system can be improved by 4%, the area energy density can be improved by 25%, the cost can be reduced by more than 5%, and the operation safety of the system can be greatly improved.
While specific embodiments of the present disclosure have been described above, it will be appreciated by those skilled in the art that this is by way of example only, and the scope of the disclosure is defined by the appended claims. Various changes and modifications to these embodiments may be made by those skilled in the art without departing from the principles and spirit of the disclosure, but such changes and modifications fall within the scope of the disclosure.
Claims (11)
1. The energy storage and current transformation integrated cabin is characterized by comprising a shell, and an energy storage current transformer, a battery control unit, a power grid interface and a battery interface which are integrated in the shell, wherein the energy storage current transformer is electrically connected with the battery control unit;
The power grid interface is used for connecting the energy storage converter and a power grid;
The battery interface is used for connecting the energy storage converter and a battery system;
The battery control unit is used for monitoring the running state of the battery system and sending a switch switching instruction to the energy storage converter;
the energy storage converter is used for responding to the switch switching instruction to switch the switch state of a switch contained in the energy storage converter so as to switch the battery state of the battery system, wherein the battery state comprises a charging state and a discharging state.
2. The energy storage and conversion integrated cabin according to claim 1, further comprising an isolating switch, wherein the energy storage converter is connected with the battery system through the isolating switch.
3. The energy storage and conversion integrated cabin according to claim 1 further comprising a contactor, wherein the energy storage and conversion integrated cabin is connected with the battery system through the contactor.
4. The energy storage and conversion integrated cabin according to claim 1, further comprising a fuse, wherein the energy storage and conversion integrated cabin is connected with the battery system through the fuse.
5. The energy storage and conversion integrated cabin according to claim 1 further comprising a relay, wherein the energy storage inverter is connected with the power grid through the relay.
6. The energy storage and conversion integrated cabin according to claim 1 further comprising a circuit breaker, wherein the energy storage and conversion integrated cabin is connected with the power grid through the circuit breaker.
7. The energy storage and conversion integral cabin according to claim 1, further comprising an in-situ monitoring module in communication with the energy storage converter and the battery control unit, respectively;
The in-situ monitoring module is used for monitoring the energy storage converter and the battery control unit, and/or is used for communication interaction between the energy storage converter and the battery control unit.
8. The energy storage and conversion integral cabin according to claim 1 further comprising a communication module for data communication between the energy storage converter and the battery control unit.
9. The energy storage and conversion integral pod of claim 1, further comprising at least one of:
the fire fighting device is electrically connected with the on-site monitoring module;
the anti-soaking device is electrically connected with the on-site monitoring module;
The door magnetic device is electrically connected with the on-site monitoring module;
And the emergency stop device is electrically connected with the on-site monitoring module.
10. The energy storage and conversion integral pod of claim 1 wherein the energy storage converter and the battery control unit are packaged on a control board.
11. The energy storage and conversion integrated cabin according to claim 1, wherein the energy storage converter and the battery control unit share at least one power supply interface;
And/or the energy storage converter and the battery control unit share at least one communication interface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN202421607264.9U CN223007338U (en) | 2024-07-08 | 2024-07-08 | Energy storage and current transformation integrated cabin |
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| CN202421607264.9U CN223007338U (en) | 2024-07-08 | 2024-07-08 | Energy storage and current transformation integrated cabin |
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