摘要
在研究高压开关位置状态在线监测基础上,提出了一种集电路简单、成本低廉以及可靠性高于一体的实时在线监测系统。每个高压开关按照设计要求,均分配了特定的频率信号,通过快速傅立叶变换(FFT)对所有频率信号集中频谱分析,从而获得各个高压开关状态信息。该监测系统独特的设计方法可以很好地推广到电力系统其它开关量在线监测设计方面,同时对其它行业开关量的实时监测,也是一种很好的借鉴和提示。
The high-voltage switch is an important kind of switching device for the safe operation of power system.For online monitoing of the status of the high-voltage switches,this paper proposes a real-time measuring design solution characterized by simple circuit,low cost and high reliability.According to the design specification,each high-voltage switch is allocated a specific frequency signal.All frequency signals are analyzed in centralized way by using Fast Fourier Transform（FFT）,and the status information of each high-voltage switch can be obtained.The unique design method can be applied to other application designs involving online monitoring switches.
出处
《太原理工大学学报》
CAS
北大核心
2010年第4期416-419,共4页
Journal of Taiyuan University of Technology
关键词
快速傅立叶变换
开关量
在线监测
高压开关
fast Fourier transform
switching capacity
on-line monitoring
high-voltage switches
