摘要
介绍了一种以单片机87C196KC为主处理器的TSC型低压动态无功补偿控制器,并给出了实验结果。控制器采用改进的“九域图法”控制策略,避免了投切振荡。通过对三相电压、电流信号的一个周期进行等间隔采样,并对采样数据进行快速傅里叶变换处理(FFT),得到各有关电量参数,实现无功补偿和电网监测功能。
A TSC-mode low voltage dynamic reactive-load compensation controller based on chip microcomputer 87C196KC as the main processor is introduced and experiment result is given in this paper. In the controller, improved ＂nine-area-graph＂ synthesis control strategy is adopted to avoid switching capacitor oscillation. Besides, by equal interval sampling to three-phase voltage and current in one cycle as well as fast Fourier transform to the sampling data, various relevant electric parameters are obtained and reactive-load compensation and power line monitor function is realized.
出处
《电气传动自动化》
2007年第3期54-56,61,共4页
Electric Drive Automation
关键词
无功补偿
单片机
电容器投切
综合控制
reactive power compensation
single chip microcomputer
switching of capacitor
combination control
