Energy storage confluence cabinet with environmental state sensing function and control system of energy storage confluence cabinet

Abstract

The utility model relates to an energy storage confluence cabinet with environmental state sensing and a control system thereof, and belongs to the technical field of energy storage control. The environment sensing module is connected with the control unit which is connected with the relay control module for controlling the isolating switch, so that when the energy storage confluence cabinet works, the control unit can control the opening and closing operation of the isolating switch through the relay control module according to acquired environment information, a battery cluster can be timely disconnected when the environment is abnormal, and the safety of the energy storage confluence cabinet is improved. Effective linkage of the environment sensing module and the isolation switch through the control unit is effectively realized.

Description

Technical Field

[0001] This utility model relates to an energy storage combiner cabinet with environmental status perception and its control system, belonging to the field of energy storage control technology. Background Technology

[0002] The containerized energy storage intelligent monitoring system is an energy storage and transfer device that can be configured at the generation end, transmission and distribution end, and user end to expand the capacity of the power supply system, help improve the power quality of the power grid, and improve the reliability of power supply to the load.

[0003] Currently, energy storage systems are generally unattended for extended periods after being put into operation. Therefore, the intelligence of energy storage systems and their ability to perceive the situation of the internal environment are crucial aspects. According to research, one of the important factors causing most failures or accidents during the operation of energy storage systems is the abnormal environmental factors within the site, such as high humidity and temperature.

[0004] Chinese patent publication CN209197796U discloses a containerized energy storage intelligent monitoring system. This system, through the installation of control units, can monitor the operating status and environment of field equipment, ensuring the normal and stable operation of the energy storage system based on this information. In case of malfunctions, it can also promptly issue local and remote alarms and handle the issues simply.

[0005] However, the energy storage system only stops working when there is a hardware or communication failure. When serious environmental problems occur, the environmental control equipment can only adjust the environment accordingly, and the energy storage system will continue to operate. It cannot disconnect the battery cluster in time, which may pose a safety risk. Therefore, there is an urgent need for an intelligent energy storage control solution that integrates energy storage unit power control, environmental perception, and safety protection. Utility Model Content

[0006] The purpose of this invention is to provide an energy storage combiner cabinet with environmental status awareness and its control system, in order to solve the problem that existing energy storage containers with environmental control cannot disconnect the battery clusters in time under extreme environments.

[0007] To achieve the above objectives, the solution of this utility model includes:

[0008] This utility model discloses an energy storage combiner control system with environmental status perception, comprising a relay control module for controlling an isolating switch connected between an input bus and an output bus, and a control unit electrically connected to the relay control module. The system is characterized by further comprising an environmental perception module for detecting environmental information within the container, the environmental perception module being electrically connected to the control unit and used to transmit the detected environmental information to the control unit.

[0009] Furthermore, the environmental sensing module also includes environmental control equipment for regulating the environment inside the container.

[0010] Furthermore, the environmental sensing module is connected to the control unit via a communication module, which may include a CAN module, an RS485 module, or an Ethernet module.

[0011] Furthermore, it also includes a battery information acquisition module connected to the control unit for collecting battery parameter information.

[0012] Furthermore, it also includes an energy management system connected to the control unit for monitoring the operating status of the energy storage system.

[0013] An energy storage combiner cabinet with environmental sensing includes a relay control module for controlling an isolating switch connected between an input bus and an output bus, and a control unit electrically connected to the relay control module. The cabinet is characterized by further including an environmental sensing module for detecting environmental information inside the container. The environmental sensing module is electrically connected to the control unit and is used to transmit environmental information to the control unit.

[0014] Furthermore, the environmental sensing module also includes environmental control equipment for regulating the environment inside the container.

[0015] Furthermore, the environmental sensing module is connected to the control unit via a communication module, which may include a CAN module, an RS485 module, or an Ethernet module.

[0016] Furthermore, it also includes a battery information acquisition module connected to the control unit for collecting battery parameter information.

[0017] Furthermore, it also includes an energy management system connected to the control unit for monitoring the operating status of the energy storage system.

[0018] The beneficial effects of this utility model are as follows: This utility model is an improved invention. When detecting the environment inside a container, this utility model connects an environmental sensing module to a control unit that is connected to a relay control module for controlling the disconnect switch. The control unit, which can directly control the disconnect switch, processes the environmental sensing information. Compared with the existing independent environmental sensing and control systems, this utility model can enable the control unit to combine the container environment information sent by the environmental sensing module with the relay control module to directly issue a tripping command to the disconnect switch. This can promptly disconnect the battery pack when the environment is abnormal, effectively realizing the effective linkage between the environmental sensing module and the disconnect switch through the control unit. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of an energy storage combiner cabinet structure in this embodiment;

[0020] Figure 2 This is a schematic diagram of the safety protection process of an energy storage combiner cabinet with temperature sensing in this embodiment. Detailed Implementation

[0021] To make the objectives, technical solutions, and advantages of this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments.

[0022] The concept of this utility model lies in connecting an environmental sensing module to a control unit that is connected to a relay control module for controlling the disconnecting switch. This allows the control unit to control the disconnecting switch via the relay control module based on the collected environmental information, thus achieving effective linkage between the environmental sensing module and the disconnecting switch. When the combiner cabinet is operating, the control unit receives environmental information from the environmental sensing module about the interior of the container (prefabricated compartment) and the current operating status of the energy storage system. Based on the configured safety protection strategy, the control unit controls the disconnecting switch to open or controls the environmental control equipment to adjust the environment inside the compartment.

[0023] Energy storage combiner cabinet example:

[0024] This embodiment provides an energy storage combiner cabinet with environmental status awareness, such as... Figure 1 As shown:

[0025] The energy storage combiner cabinet mainly consists of two parts: a power control unit and a control system with environmental status awareness.

[0026] The power control unit mainly consists of a disconnect switch, power circuit fuses (FU1, FU2, and FU3), a surge protection module (FYB1), input busbars, and output busbars. The disconnect switch is equipped with an electric operating mechanism (including an electric control mechanism and a status feedback mechanism). The power control unit mainly performs functions such as parallel busing of the battery clusters in the energy storage section, power-on and power-off control of the power circuit, and connecting the energy storage battery stack and the energy storage converter (PCS) for system charging and discharging control.

[0027] The positive terminal of the isolating switch input is connected to the positive terminal of the input busbar via a power circuit fuse (FU1), and the negative terminal is connected to the negative terminal of the input busbar. The positive and negative terminals of the isolating switch output are connected to the corresponding positive and negative terminals of the output busbar, respectively. The positive and negative terminals of the input busbar are connected to the positive and negative terminals of each battery cluster, respectively. The positive and negative terminals of the output busbar are connected to the positive and negative terminals of the DC side of the energy storage converter, respectively. The output busbar is also connected to the surge protection module via power circuit fuses (FU2, FU3).

[0028] The control system with environmental status awareness consists of a control unit, a relay control module, a communication management module, an environmental awareness module, a battery information acquisition module, and an energy management system (EMS). The control unit is connected to the relay control module, the communication module, the battery information acquisition module, and the EMS, respectively, and the environmental awareness module is connected to the communication module.

[0029] The disconnecting switch is equipped with an electric operating mechanism, the operation of which is controlled by the control unit. The relay control module receives control commands from the control unit and remotely controls the electric operating mechanism to perform the disconnecting operation of the disconnecting switch to disconnect the working battery. The disconnecting switch is also equipped with a status feedback mechanism that feeds back the status changes of the disconnecting switch to the control unit.

[0030] The control unit performs the functions of a battery management system (BMS), collecting data from the battery cells within the storage compartment and intelligently adjusting the compartment environment based on cell status and environmental information to maintain it within its optimal operating range. It can also interact with the energy storage system (EMS) to sense the current operating status of the energy storage system and remotely control the opening and closing of disconnect switches and trigger fault alarms. The environmental sensors communicate with the control unit using methods including, but not limited to, CAN, RS485, and Ethernet.

[0031] Specifically, the alarm information received by the control unit is divided into environmental parameter alarms (temperature, humidity, smoke concentration, etc. sent by the environmental sensing module) and non-environmental parameter alarms (battery parameter alarms collected by the battery information acquisition module, energy storage system anomalies sent by the EMS, etc.).

[0032] The environmental sensing module includes, but is not limited to, environmental sensing sensors with environmental sensing capabilities such as temperature sensors, humidity sensors, and water immersion sensors, as well as environmental control equipment with environmental control capabilities such as air conditioners, dehumidifiers, and fire protection systems. According to the actual system requirements, environmental sensing sensors and environmental control equipment with corresponding parameters can be added to the environmental sensing module, and corresponding safety protection strategies can be added to the control unit to maintain the cabin environment at the optimal working environment of the system.

[0033] The following example, using a typical temperature-sensing energy storage combiner cabinet safety protection process, illustrates how the energy storage combiner cabinet control system of this invention implements this protection process. Figure 2 As shown:

[0034] During the operation of the prefabricated in-cabin energy storage system, the control unit monitors the system in real time for any alarm information. The system operates normally when no alarms are detected. When an environmental parameter alarm (e.g., current cabin temperature) is detected via Ethernet from a temperature sensor, or a non-environmental alarm (e.g., battery life expires) is detected from the battery cluster, the type of alarm is identified. If it is an environmental parameter alarm, it is further determined whether it is a critical alarm. If it is a critical alarm (e.g., cabin temperature reaches 50°C, which is too high and detrimental to battery cluster operation), the control unit controls the electric operating mechanism via the relay control module to open the disconnect switch, disconnecting the battery cluster and stopping the power control unit. The status feedback mechanism feeds back the change in the disconnect switch's state from closed to open to the control unit. Simultaneously, the control unit reports fault information to the EMS. When the control unit detects that the current cabin environment is within a normal operating range, it can control the electric operating mechanism via the relay control module to close the disconnect switch, activating the power control unit. The status feedback mechanism feeds back the change in the disconnect switch's state from open to closed to the control unit. If it is not a serious alarm, the alarm status is further determined. When the temperature is greater than or equal to the cooling threshold (for example, the current temperature in the cabin is 41°C, while the cooling threshold is 40°C), the control unit controls the air conditioner to turn on the cooling function. When the temperature is less than or equal to the heating threshold (for example, the current temperature in the cabin is 5°C, while the heating threshold is 10°C), the control unit controls the air conditioner to turn on the heating function. If it is a battery parameter alarm, the control unit controls the electric operating mechanism to open the isolating switch through the relay control module, disconnecting the battery pack and stopping the operation of the power control unit. The status feedback mechanism will feed back the change in the isolating switch from closed to open to the control unit. The control unit will also report the fault information to the EMS.

[0035] Example of an energy storage combiner cabinet control system:

[0036] This embodiment provides an energy storage combiner cabinet control system with environmental state awareness. The control system is equipped with an energy storage combiner cabinet with environmental state awareness as described in the energy storage combiner cabinet embodiment. Since the description of the control system in the energy storage combiner cabinet embodiment is clear enough, it will not be repeated here.

[0037] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and not to limit it. Although the utility model has been described in detail with reference to the above embodiments, those skilled in the art should understand that modifications or equivalent substitutions can still be made to the specific implementation of this utility model. Any modifications or equivalent substitutions that do not depart from the spirit and scope of this utility model should be covered within the protection scope of the claims of this utility model.

Claims

1. A control system for an energy storage combiner cabinet with environmental status awareness, comprising a relay control module for controlling an isolating switch connected between an input bus and an output bus, and a control unit electrically connected to the relay control module to realize the opening operation of the isolating switch, and further comprising an environmental sensing module for detecting environmental information inside the container, characterized in that, The environmental sensing module is electrically connected to the control unit and is used to transmit alarms of severe environmental parameters that are detrimental to the continued operation of the battery cluster to the control unit, so that the control unit can perform a tripping operation on the disconnecting switch through the relay control module.

2. The energy storage combiner control system with environmental state awareness according to claim 1, characterized in that, The environmental sensing module also includes environmental control equipment for regulating the environment inside the container.

3. The energy storage combiner control system with environmental state awareness according to claim 1, characterized in that, The environmental sensing module is connected to the control unit via a communication module, which includes a CAN module, an RS485 module, or an Ethernet module.

4. The energy storage combiner control system with environmental state awareness according to claim 1, characterized in that, It also includes a battery information acquisition module connected to the control unit for collecting battery parameter information.

5. The energy storage combiner control system with environmental status awareness according to claim 1, characterized in that, It also includes an energy management system connected to the control unit for monitoring the operating status of the energy storage system.

6. An energy storage combiner cabinet with environmental status awareness, comprising a relay control module for controlling an isolating switch connected between an input bus and an output bus, and a control unit electrically connected to the relay control module to realize the opening operation of the isolating switch, and further comprising an environmental sensing module for detecting environmental information inside a container, characterized in that, The environmental sensing module is electrically connected to the control unit and is used to transmit alarms of severe environmental parameters that are detrimental to the continued operation of the battery cluster to the control unit, so that the control unit can perform a tripping operation on the disconnecting switch through the relay control module.

7. The energy storage combiner cabinet with environmental status awareness according to claim 6, characterized in that, The environmental sensing module also includes environmental control equipment for regulating the environment inside the container.

8. The energy storage combiner cabinet with environmental status awareness according to claim 6, characterized in that, The environmental sensing module is connected to the control unit via a communication module, which includes a CAN module, an RS485 module, or an Ethernet module.

9. The energy storage combiner cabinet with environmental status awareness according to claim 6, characterized in that, It also includes a battery information acquisition module connected to the control unit for collecting battery parameter information.

10. The energy storage combiner cabinet with environmental status awareness according to claim 6, characterized in that, It also includes an energy management system connected to the control unit for monitoring the operating status of the energy storage system.

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