电网谐波的微机检测和分析系统

A MICROCOMPUTER SYSTEM DETECTING AND ANALYSING HARMONIC COMPONENTS IN POWER NETWORKS

为贯彻水电部《电力系统谐波管理暂行规定》文件,适应电网谐波检测管理的需要,研制了本装置。它在微处理机的基础上实现了对电网谐波的自动检测:能测量基波至19次谐波的电压、电流、相位、有功和无功功率,以及电压和电流的总畸变率。本文简述其工作原理、硬件框图、程序流程图、提高测量准确度的措施、测试结果等。

To Garry out the guidelines of The Bureau of water conservancy/Electric Power about 'The Provisional formulate for Harmonic detecting and management of electric power system' , We designed and put out this device to meet the need of Harmonic management for network.The device can be widely used as an administrative power network Harmonic analyser.With the help of microprocessor, The device can automatically check and measure The following elements in power networks- voltage, current, phase angle, active and Reactive powers, The voltage and Current's total deformation Rate of all the elementary ware to 19th harmonic.This paper describes its working principle, Hardward diagram, program flow chart and the method to get higher accurary and its experimental Results, etc.