桂林电子科技大学学报2012，Vol.32Issue(3)：208-212,5.
电力电容器介质损耗因数在线检测系统的设计
The on-line detection system design of power capacitor dielectric loss factor
摘要
Abstract
Aiming at the current situation of the increasing precision requirement for the power capacitor dielectric loss angle factor on-line detection, the on-line detection system of dielectric loss factor in power capacitor based on AD7656 and TMS320F2812 was designed. The voltage transformer and current sensor were used to collect bus voltage signals and leak current signals of the power capacitor, the collected signals were converted into the signals which can be received by AD7656 through signal conditioning circuit) AD7656 was used to be analog-to-digital converter, PLL can ensure synchronous sampling, TMS320F2812 was used to control the AD transform, harmonic a-nalysis method was used for data processing and tan 8 calculation. The measuring relative errors of tan S on the conditions of the power grid frequency waving and white noise influencing were calculated. The experimental results show that the system has the good feature of veracity and reliability, the method can achieve the required accuracy of the power capacitor tan S on-line detecting.关键词
电力电容器/介质损耗因数/AD7656/TMS320F2812/数据采集Key words
power capacitor/ dielectric loss factor/ AD7656, TMS320F2812/ data collection分类
信息技术与安全科学引用本文复制引用
延红艳,黄知超,杨升振..电力电容器介质损耗因数在线检测系统的设计[J].桂林电子科技大学学报,2012,32(3):208-212,5.基金项目
广西科学研究与技术开发计划(11107014-9) （11107014-9）
