文档介绍：基于AT89C52单片机控制的柔性低压、无功功率补偿器的设计
摘要
在电力系统中,功率因数的提高是一项重要的技术工作,直接关系到输电线路的电能损耗供电的经济性,供电质量。功率因数的补偿措施一直为人们所重视。研制高性能的功率因数装置具有实际的社会,经济效益。
本文介绍了基于AT89C52控制的高精度低压无功功率补偿器。该控制器采用数字检测电路来获取电网电压与电流的相位差;控制开关采用过零型固态继电器,使投切控制实现等电压投入,零电流切除;单片机AT89C52实现数据处理、输入、输出控制等功能。通过实验监测功率因素分析,该控制器具有对电网冲击小,响应快,抗干扰能力强,精度高,可分相投切等优点,适用于目前企业用户进行无功功率补偿。
本文运用AT89C52单片机,对电力系统中低压无功功率进行监测和控制,使功率因数达到调整和优化,提高了电力系统的供电质量和经济运行。
关键词: AT89C52 功率因数补偿器电容器
ABSTRACT
The article introduces passive pensator based on AT89C52 controlling with high precision. It measures excess phase of voltage and circuit used digital circuit. The AC solid-state relay of passing zero is applied to the control switch. It is input when the voltage of the power system equals the voltage of the capacitor and elimination when the circuit is zero. A puter petes the Data process, input, output etc. The practical result shows the advantages of high precision, less influence on low-voltage power system, fast response, connecting capacitors with single-phase and the ability of anti-jamming. It is mainly used pensate passive power in present factory and mine.
In the power-system, the raise of the power-factor is a important technologic work. It matters the utility and quality of the power-system. The method of power-factor has always been taking seriouslyby people. The research of the high-quality power-pensationhas great social and economic meanings.
This article utilizes the AT89C52 monolithic integrated circuit, thelow pressure reactive power carries on the monitor and the control tothe electrical power system in, enables the power factor to achievethe adjustment and the optimization, improved the electrical powersystem power supply quality and the economical movement.
Keywords: AT89C52 Power-pensator Capacitor
目录
摘要 I
ABSTRACT II
第一章绪论 1
第二章功率因数补偿系统的设计概述 5
功率因数的计算. 5
低压无功功率设备安装的原则与方法. 6
电容器装置控制方式的选择 7
各种无功补偿设备及补偿方式 7
投切方式分类 9
延时投切方式 9
瞬时投切方式 10
混合投切方式 11
无功功率补偿器设计的