As an important component of energy vehicles, power batteries have always been an important part of new energy vehicle research. Based on years of engineering experience and technology in the field of electric power, Keliang provides a full range of technical services for technology development and simulation of power battery simulation and testing. Mainly includes modeling analysis, battery simulation, fault simulation, system integration, BMS development support, HiL test, etc.
Battery cell simulator
As the management module of the energy storage system, the battery management system (BMS) is responsible for controlling the charging and discharging process of the rechargeable battery to ensure efficient and safe use of the battery. The KL2624 battery cell simulator provides an efficient, secure and systematic test that simulates the different states of the battery cells and enables hardware-in-the-loop testing of the BMS.
The KL2624 is a 24-channel high-precision battery cell simulator that can be controlled by a real-time simulator or PC. By simply changing the different MATLAb/Simulink battery models, you can simulate and output various battery characteristics. . The 24-channel battery cell voltage can be individually adjusted from 0.1V to 5V with an accuracy of ±1mV. Each channel can support active and passive equalization, bidirectional current output capability is 1A, and each channel has current acquisition function, the acquisition accuracy is within ±2mA, and the collected equalization current is fed back to the upper computer model for SOC update calculation. The output voltage is adjusted accordingly to achieve closed-loop testing of the equalization process.
In addition, the KL2624 has 24 temperature analog channels and fault injection (FIU) modules. The temperature analog channel simulates the battery temperature change process and is connected to the BMS temperature monitoring module in the form of a thermistor output. The fault injection module includes single fault simulation and temperature acquisition fault simulation, which can simulate single-circuit short circuit, open-cell open circuit, temperature sampling line open circuit, short circuit and other faults.
Features
Simulate 24 cells (voltage and temperature)
Stackable to 200 cells, isolated voltage 1500V
Support active and passive equalization
High precision voltage, current and resistance output
Standard 3U modular hardware board
Built-in fault injection unit (FIU)
Modular design, configurable
Hardware protection design
High isolation voltage
The battery simulator has a stackable design with a high isolation voltage of 2500V, which allows it to simulate a battery cell series connection of more than 200 knots.
Passive Equilibrium and Active Equilibrium Support
The current output capability and absorption capacity of each channel of the battery simulator are above 1A, and it has current recovery function, which supports passive equalization and active equalization, and adjusts the voltage and SOC of the battery analog channel in real time after solving by high-precision model. , to achieve a closed loop of the equilibrium process.
In addition to the battery cell analog channel, the simulator has a temperature analog channel that simulates the temperature change of the battery. The large output range and high precision of the temperature analog channel make it suitable for the simulation of various temperature sensors. The temperature analog output can be intelligently adjusted in real time after being solved by the battery thermal model.
Precision battery model
Providing a mature battery model, the model has high precision and parameterizable characteristics. The fitting of real battery experimental data enables high-order battery model to achieve precise simulation of battery charge and discharge and polarization process, which provides guarantee for BMS acquisition accuracy test. .
Various types of fault simulation
Simulate and verify different fault modes such as short circuit, open circuit, over voltage protection, over temperature protection, fault diagnosis, isolation and charge equalization of single battery, and comprehensively simulate the possible failure of the battery to verify the effectiveness of the fault countermeasure. And performance stability to ensure a safe and reliable power supply system, and the system can be used in place of real batteries for reliability test verification.
System level test
Professionally provide complete engineering configuration of automatic test system, not only configure battery pack simulation and various fault simulations, but also configure other system simulations such as cooling system simulation, safety monitoring system simulation, vehicle controller, etc., to create a very real test for BMS. Environment to achieve complete and effective system testing. As a systematic test platform for BMS, this system is suitable for the following functional verification of BMS:
Battery charge and discharge control function
Battery total voltage and current monitoring
Battery cell voltage monitoring function
Battery cell equalization function
Battery SOC estimation function
Battery pack temperature management
Battery safety control
Fault diagnosis and processing functions
Intersystem communication function
BMS hardware in-loop test systemThe KL2624 battery cell simulator can be used for energy storage system testing and verification in various fields such as new energy vehicles, space power systems, and microgrid energy storage systems. The following is a typical application system that integrates five KL2624 simulators to simulate a battery pack consisting of 120 cells in series.
The system consists of a PC host, a real-time emulator, a battery pack simulator, and a BMS to be tested. The PC host runs simulation and test monitoring software, which is the human-machine interface of the system. All models except the BMS are run in the real-time simulator and interact with the BMS via digital and analog I/O and communication buses. The battery pack simulator is made up of five single-unit simulators. Through the simulator, the single-voltage monitoring module and the total voltage monitoring module of the BMS can directly perform voltage acquisition, and the equalization circuit of the BMS can also directly perform the single-cell operation. During the equalization operation, the generated equalized current is collected in the simulator and the battery equalized state is updated in real time. In addition, the BMS temperature acquisition function and fault diagnosis function can be directly verified by the battery temperature simulation module and the battery fault injection unit.
Our company specializes in the production and sales of all kinds of terminals, copper terminals, nose wire ears, cold pressed terminals, copper joints, but also according to customer requirements for customization and production, our raw materials are produced and sold by ourselves, we have their own raw materials processing plant, high purity T2 copper, quality and quantity, come to me to order it!
Copper Connecting Terminals,Cable Lugs Insulated Cord End Terminals,Pvc Insulated Cord End Terminal,Cable Connector Insulated Cord End Terminal
Taixing Longyi Terminals Co.,Ltd. , https://www.longyiterminals.com