To study the characteristics of a new type of vehicle supercapacitor,to ensure its stability and reliability during operation and effective utilixation its performance advantages,a charge and discharge monitoring system for vehicle supercapacitor is designed.The acquisition of each signal and the charging and discharging of supercapacitors are accomplished by utilizing sensors,universal serial bus(USB)data acquisition card,adjustable direct current regulated power supply,electronic load,and signal conditioning circuit.Using the virtual instrument software LabVIEW as the development platform,the monitoring of supercapacitor charging and discharging current,terminal voltage,storage capacity,stored energy and surface temperature etc.are completed.The test results show that the system can stably and accurately realize the charging and discharging monitoring of supercapacitor;the monomer of vehicle supercapacitor has better low-temperature performance when it is charged and discharged under 100 A high current;the system's voltage measurement accuracy can reach±0.1％,current measurement accuracy can reach±0.6％,and temperature measurement accuracy can reach±1.5％.The design provides a reference for monitoring the charging and discharging of supercapacitors.
关键词
超级电容器/充放电/监测系统/LabVIEW/信号调理电路/电子负载
Key words
Supercapacitor/Charge and discharge/Monitoring system/LabVIEW/Signal conditioning circuit/Electronic load
维普
万方数据