The structure of the smart energy storage cabinet is revealed: Ankerui 2000ES solution creates the brain of smart energy storage

Anke Ruimeng Xinyuan 18721502664

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With the transformation of the global energy structure and the rapid development of renewable energy, energy storage technology has become the key to regulating energy supply and demand and improving energy efficiency. As the core component of energy storage technology, the structure and function of energy storage cabinets are particularly important. This article will analyze the structure of energy storage cabinets in detail and show how they can become the intelligent core of efficient energy management.

1. Overview of energy storage cabinet structure

The energy storage cabinet is mainly composed of the following core parts:

1. Battery module: It is the core of the energy storage cabinet and is responsible for storing and releasing energy. Common battery types include lithium-ion batteries, lead-acid batteries, and sodium-ion batteries.

2. Battery Management System ( BMS ): monitors the charge and discharge status of the battery to ensure that the battery operates within a safe and efficient range.

3. Energy Management System ( EMS ) : Responsible for coordinating the energy exchange between the battery module and the external power grid to achieve optimal energy configuration.

4. Control system: It includes hardware and software, and is responsible for monitoring and controlling the overall operation of the energy storage cabinet.

5. Communication interface: used to realize the interconnection between the energy storage cabinet and external systems (such as power grid, monitoring system, etc.).

2. Detailed analysis of the energy storage cabinet structure

1. Battery module

The battery module is the heart of the energy storage cabinet, and its performance directly affects the overall efficiency of the energy storage cabinet. Battery modules are usually modular in design and can be flexibly configured according to needs. The following are several key elements of the battery module:

-Battery unit: It is the basic component unit of the battery module, usually composed of multiple battery cells connected in series or in parallel.

-Battery pack: It is composed of multiple battery cells and has a certain voltage and capacity.

-Battery pack: The battery pack is enclosed in a metal casing to protect the battery.

2. Battery Management System ( BMS )

BMS is the intelligent brain of the energy storage cabinet, responsible for real-time monitoring of battery charging and discharging status, voltage, current, temperature and other parameters to ensure that the battery operates within a safe and efficient range. The following are several key functions of BMS :

-Battery status monitoring: Determine the battery charging and discharging status by real-time monitoring of battery voltage, current and other parameters.

-Battery protection: When the battery voltage, current, temperature and other parameters exceed the safe range, an alarm will be issued in time and measures will be taken to protect the battery.

-Data collection and transmission: The battery operation data is transmitted to the energy management system ( EMS ) to provide a basis for subsequent energy optimization configuration.

3. Energy Management System ( EMS )

EMS is a bridge between the energy storage cabinet and the external power grid, responsible for coordinating the energy exchange between the battery module and the external power grid. The following are several key functions of EMS :

-Energy dispatching: Rationally allocate the charging and discharging energy of energy storage cabinets according to the supply and demand of the power grid.

-Peak -valley arbitrage: charging during the low load period of the power grid and discharging during the peak load period to achieve optimal utilization of energy.

-Demand response: According to the dispatching instructions of the power grid, timely adjust the charging and discharging strategies of the energy storage cabinets to participate in the peak load regulation, frequency regulation and other demand response services of the power grid.

4. Control system

The control system is the command center of the energy storage cabinet, responsible for monitoring and controlling the overall operation of the energy storage cabinet. The following are several key components of the control system:

-Hardware part: including microprocessors, sensors, relays, etc., responsible for real-time data collection and execution of control instructions.

-Software part: including monitoring software, control algorithms, etc., responsible for analyzing data, generating control strategies and executing them.

5. Communication interface

The communication interface is the information channel between the energy storage cabinet and the external system, responsible for realizing the interconnection between the energy storage cabinet and the external system (such as the power grid, monitoring system, etc.). The following are several key functions of the communication interface:

-Data transmission: The operating data of the energy storage cabinet is transmitted to the external system for remote monitoring and management.

-Control command reception: Receive control commands from external systems, such as charging and discharging strategies, fault handling, etc.

3. Application of energy storage cabinets in energy management

Energy storage cabinets are widely used in energy management. Here are some typical application scenarios:

1. Peak-valley arbitrage: charging during the low load period of the power grid and discharging during the peak load period to reduce the electricity cost of the enterprise.

2. Emergency power backup: In the event of a power grid failure or power outage, the energy storage cabinet can provide emergency power backup for the enterprise to ensure normal production.

3. Peak shaving and frequency regulation: Energy storage cabinets can participate in demand response services such as peak shaving and frequency regulation of the power grid according to the dispatch instructions of the power grid, thereby improving the stability and reliability of the power grid.

4. Renewable energy consumption: Energy storage cabinets can store electricity generated by renewable energy and improve the utilization efficiency of renewable energy.

As the intelligent core of efficient energy management, the structure and function of energy storage cabinets provide strong support for the transformation of my country's energy structure. With the continuous advancement of technology and the continuous expansion of the market, energy storage cabinets will play a more important role in the field of energy management in the future.

4. Acrel -2000E S Energy Storage Cabinet Energy Management System

4.1 System Overview

Acrel-2000ES , an energy storage EMS specially developed for industrial and commercial energy storage cabinets and energy storage containers , has complete energy storage monitoring and management functions , covering detailed information of energy storage system equipment (PCS , BMS , electric meters , fire protection, air conditioning, etc. ) , and realizes data collection, data processing, data storage, data query and analysis, visual monitoring, alarm management, statistical reports and other functions. It supports energy scheduling in advanced applications and has control functions such as planning curves, peak shaving and valley filling, demand control, and backflow prevention.

4.2 System Structure

Acrel-2000E S can connect the equipment inside the energy storage cabinet or energy storage container to the system through direct purchase or communication management or serial port server. The system structure is as follows:

4.3 System functions

4.3.1 Real-time monitoring

The system has a friendly human-machine interface, which can display the operating status of the energy storage cabinet , monitor PCS , BMS and environmental parameter information in real time, such as electrical parameters, temperature, humidity, etc. It can also display relevant information such as faults, alarms , benefits , etc. in real time.

4.3.2 Equipment Monitoring

The system can monitor the operating status and operation mode of PCS , BMS , electric meters , air conditioners, fire protection, dehumidifiers and other equipment in real time .

PC S monitoring: meet the parameter and limit settings of the energy storage converter; set the operation mode; realize the collection and display of the voltage, current, power and charge and discharge parameters of the AC and DC sides of the energy storage converter; realize PC S communication status, start and stop status, switch status, abnormal alarm and other status monitoring.

BMS monitoring : Meet the parameter and limit settings of the battery management system; monitor the temperature, voltage and current of the battery cells and battery clusters of the energy storage battery; and provide alarms for abnormal battery charge and discharge status, voltage, current and temperature.