微机测控高压无功功率自动补偿系统

本文介绍了一种由单片微型计算机、高压电力电容器和控制装置组成新的高压无功确率自动补偿系统。该系统采用离散傅里叶变换法解决了电流含大量高次谐波情况下功率因数的检测问题,采用非线性控制技术解决了自动补偿的控制精度问题,因而具有功率因数检测准确、控制精度高、高压真空开关的使用寿命高的特点经实践证明该系统性能优良,工作稳定可靠,节能效果和经济效益显著。

Automatic Compensation System of High Tension Reactive Power with Microcomputer Measuring and Controlling

This paper presents a new automatic compensation system of high tension reactive power, which consists of single-chip microcomputer, high tension capacitor and control device. The power factor measurment is solved by using discrete Fourier transform under the condition of a great deal of harmonics, and using nonlinear control technique, the automatic compensation of reactive power is performed. The measurment and compensation is accurate, and the life of high tension vacuum switch is long. It has been proved in practice that the performance of this system is stable and reliable, and its economical effect is remarkable.