摘要
在油田及其它大型企业中，多采用感应电机来拖动机械。而感应电机调速的较好方案是变频调速，此特点是可节省大量的电能，因此，得到广范应用。然而，线路中的电流、电压都是非正弦波，用常规测量仪表测量有较大误差。为解决这一问题，本文介绍了一种测量方案，其基本思想是：采用准同步采样技术，借助于微型计算机进行测量。分析表明。
Inductive motors are widely used in oil fields and other large enterprises, and the regulation of their speeds by changing frequency is a good scheme, through which large amount of electric energy can be saved. However, the electric current and voltage in the circuits are generally non-sinusoidal and it is difficult to measure them accurately with conventional instruments. A new method, i.e., quasi-synchronous sampling in combination with a microcomputer, is proposed in this paper.
出处
《仪表技术与传感器》
CSCD
北大核心
1997年第1期44-46,共3页
Instrument Technique and Sensor
关键词
测量
非正弦电参量
变频调速
微机
Non-Sinusoidal, Measurement, Quasi-Synchronous, Sampling, Signal Chip Computer.
