摘要
模拟乘法器已被广泛应用于检测电路的无功功率。但是,因为模拟乘法器相当昂贵,因此它仅在个别案例中有所应用。而许多模拟乘法器使用在电路中降低了检测精度。文中提出一种新型检测三相无功电流的模拟多路复用器。同时提交了其工作原理及仿真结果。提出了一个可用的电路说明,仿真结果表明它是可行的。
Analog multiplier is often used in detection of reactive power circuit.But because analogue multiplier is quite expensive so it is limited in some application ease. Some times analogue multipliers used in acireuit will reduce the detection accuracy.In this paper, a novel detection method for three-phase reactive current with analog multiplexer is oproposed. The operation principle and simulation results are also presented.An available circuit is illustrated. The simulation result shows that it is feasible.
出处
《煤炭技术》
CAS
北大核心
2010年第4期40-42,共3页
Coal Technology
关键词
模拟乘法器
无功电流检测
相敏探测器
模拟多路复用器
analog multiplexer
detection reactive current
phase sensitive detector
analogue multiplier
