电力系统保护与控制Issue(17)：125-132,8.
一种新型的断路器瞬动校验选相合闸方法研究
Research of a new method for circuit breaker instantaneous validation phase selection
摘要
Abstract
For the signal initial phase and frequency calculation of molded case circuit breaker instantaneous validation test, firstly this paper analyzes the calculation error of the initial phase of periodic signal based on FFT, then it proposes a method to calculate the initial phase based on Hilbert transformation,and at the same time carry on the measurement of frequency. The phase selection device is designed on the basis, and the design scheme of the hardware and software system is described. Finally the phase selection test shows that the method realizes the accurate measurement of the signal frequency and initial phase and the calculation error of signal initial phase can be effectively reduced. The designed device can accurately complete phase selection in instantaneous validation test.关键词
选相合闸/瞬动校验/Hilbert/初相位/频率波动Key words
phase selection/instantaneous validation/Hilbert/initial phase/frequency fluctuation分类
信息技术与安全科学引用本文复制引用
孙曙光,杜太行,王景芹,刘策..一种新型的断路器瞬动校验选相合闸方法研究[J].电力系统保护与控制,2015,(17):125-132,8.基金项目
天津市科技支撑重点项目(12ZCZDGX01400)；河北省高等学校科学技术研究重点项目(ZD2014051)；河北工业大学博士科研启动费资助项目 （12ZCZDGX01400）
