摘要
设计了一种电动汽车用新型绝缘检测装置。该装置主要由采样电路、信号传输和处理部分构成,不需电压/电流传感器,仅需一个高压控制开关,有效降低成本,便于工程化实现。给出了电路原理、硬件电路、软件实现及绝缘电阻计算公式。测试结果表明,该装置能实时、准确地进行各种绝缘检测,并能准确报警,且误差较小。
A new insulation resistance detection device in hybrid electric vehicle was designed. It was composed of sampling circuit, signal transmission and operation part, no need of transformers, just a high voltage control switch. It can effectively reduce the cost and is easy to apply into practical engineering. The principle, hardware circuit, software realization and calculation formula of insulation resistance were given. The test results show this device can real-time and precisely proceed with different insulation resistance detecting and can alarm correctly with little error.
出处
《低压电器》
北大核心
2009年第5期20-22,共3页
Low Voltage Apparatus
基金
国家863计划支持项目资助(2006AA11A153)
关键词
检测
绝缘
传感器
实时
detection
insulation
sensor
real-time
