Three-level protection circuit: NTC and TVS NTC thermistor Thermistor, as its name suggests, is extremely sensitive to heat and is a kind of variable resistor, mainly divided into PTC and NTC two kinds.PTC (Positive Temperature Coefficient thermistor), the higher the temperature, the greater the resistance, mainly used in mosquito killers, heaters and other products.NTC (Negative Temperature Coefficient thermistor) in contrast…

Two-stage protection circuit: three-end Fuse For security reasons, a secondary protection mechanism still needs to be added. At the current stage, the application of REP (Resistor Embedded Protector) is higher, and the three-end Fuse is more cost-effective. When the current is too large, Fuse and ordinary fuse principle, will be blown; When MOS runs abnormally, the three-end fuse of the…

primary protection circuit The control IC above is responsible for monitoring the battery voltage and loop current and controlling the switching of the two MOS. Control ics can be specifically divided into AFE and MCU:Active Front End (AFE) is the sampling chip of the battery, which is mainly used to collect the voltage and current of the battery cell.MCU (Microcontroller…

BDU Introduction: BDU is directly in contact with high voltage and large current, and its core function is responsible for the on-off of the main circuit, so BDU is also called the battery intelligent disconnection unit. On the basis of the traditional disconnection and on-off, more monitoring and protection mechanisms are gradually added to improve the safety factor. This section…

BCU Introduction: The BCU is the brain of the BMS, which contains an MCU chip responsible for calculating the State of Heath (SOH) and State of Charge (SOC) of the battery, and making judgments and decisions by using the accurate battery data measured by CSC and BJB to ensure the safety of the battery and improve the performance. It can…

PCS Composition of PCS PCS, as the core component of the energy storage system, integrates the DC/AC bidirectional converter and the control unit. Its controller receives external instructions through advanced communication protocols, intelligently identifies power requirements, accurately controls the battery charging and discharging process, and realizes flexible adjustment of active and reactive power of the grid. At the same time,…

EMS development trend Technological innovation With the continuous progress of technology, EMS systems are developing in the direction of more intelligent and automated. Integrate artificial intelligence and machine learning algorithms to improve prediction accuracy and system response speed, optimize charging and discharging strategies, and improve energy efficiency. Market size growth The global EMS market size continues to grow steadily and…

EMS application Scenarios EMS application Scenarios Scenario Description: In renewable energy generation facilities such as solar and wind, EMS is used to monitor and manage the flow of energy between generation, storage and the grid.Application effect: Optimize the use of renewable energy, improve the stability of power supply, and reduce the dependence on traditional power sources. Microgrid system Scenario Description:…

EMS (Energy Management System) function design Real-time monitoring of power station operation Function description: The system monitors the components of the power station in real time, including the BMS system, PCS (energy storage converter) and load, ensuring real-time acquisition and recording of all key parameters. Key points of implementation: BMS System Monitoring: Monitor total voltage, current, average temperature, SOC (power…

EMS Basic Functions Real-time monitoring Status monitoring: real-time monitoring of the operating status of energy storage devices (such as batteries, inverters, etc.), such as voltage, current, power and other parameters.Environmental monitoring: Monitors the impact of environmental conditions (such as temperature and humidity) on device performance. Data collection and storage Data acquisition: Collect data in real time from sensors and devices,…