精品文档---下载后可任意编辑本课题讨论以低压电网无功补偿改造为背景，研制了一种低压无功功率补偿控制器。作为一种非实时的无功补偿装置，该装置以定时的电网监测数据为依据，以低压电网的无功补偿为对象。本文主要讨论了无功补偿对电网性能的改善，以及控制器的软硬件的配置。系统采纳AT 89C52单片机，该单片机是美国 ATMEL 公司生产的低电压，高性能的CMOS 8 位单片机，具有运算速度高，实时性好的特点；软件则使用汇编语言进行编译；人机操作界面采纳 LCD 显示,显示效果较好；A/D 转换采纳ADC0809，是一款比较有用的 A/D 转换装置。该装置可跟踪电网无功功率的变化并自动补偿,实现了无功补偿装置的优化运行,具有体积小、原理简单、智能投切等优点。关键词：无功补偿,单片机,低电压ABSTRACTWhat this article studies is based on the alteration of reactive power compensation of low voltage, then design an equipment for reactive power compensation of low voltage. As a kind of reactive power compensation, this equipment is basis on the electrical network monitor data ，and provides reactive power for city’s low voltage power grids. This thesis has discussed the importance of the reactive power compensation for the power grids ，and introduced the hardware and software of the controller.This device’s hardware core is AT89C52 SCM ，which has many merits such as high operating speed. This monolithic integrated circuit is the low voltage which American ATMEL Corporation produces, a high performance CMOS 8 monolithic integrated circuits；The software uses the assembly language to carry on the translation；The man-machine operation contact surface uses the LCD demonstration, the demonstration effect is quite good; A/D transformation uses ADC0809 ， it is a section of quite practical A/D switching device. This equipment may track the electrical network reactive power the change and the automatic compensation, and this installment has the volume ...
