摘要
介绍了一种基于纯电动汽车的绝缘检测的算法,其特点是通过注入直流信号,提高了计算绝缘电阻的精度。文中给出了电路原理图,绝缘电阻的计算公式和算法实现的流程图。通过在无轨电车上的实际运行,证明了该装置对绝缘故障情况可以及时准确报警,能够较好的完成对绝缘特性监测任务,实现了预期的效果。
This paper presents a new insulation resistance detection device used in electric vehicle.In this device,we inject a DC signal.So it can improve the calculation accuracy of insulation resistance.The article gives out the circuit diagram,the formula of insulation resistance and software block diagram.The practical operation shows the device can accurately determine level of insulation failure.So the device can ensure the safe running of the electric vehicle.
出处
《电测与仪表》
北大核心
2011年第5期6-9,共4页
Electrical Measurement & Instrumentation
关键词
绝缘
有源监测
实时
insulation
active monitoring
real-time
