电力系统无功补偿.doc

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毕业论文（设计）
题 目电力系统的无功优化、补偿及无功补
偿技术对低压电网功率因数的影响
2007年8月30日
电力系统的无功优化、补偿及
无功补偿技术对低压电网功率因数的影响
电气工程及其自动化专业
学生：指导教师：
摘要：电力系统的无功优化和无功补偿是提高系统运行电压，减小网损，提高系 统稳定水平的有效手段。本文对当前常用的无功优化和无功补偿进行了总结，对目前 无功补偿和优化存在的问题进行了一定的探讨和研究。电压是电能质量的重要指标之 一，电压质量对电网稳定及电力设备安全运行、线路损失、工农业安全生产、产品质 量、用电单耗和人民生活用电都有直接影响。无功电力是影响电压质量的一个重要因 素，电压质量与无功是密不可分的，电压问题本质上就是一个无功问题。解决好无功 补偿问题，具有十分重要的意义。
关键词：无功优化 无功补偿网损电压质量 功率因数
Reactive power system optimizati on, compe nsati on
and Reactive power compe nsati on of low voltage
n etwork of power factor
Electrical Engin eeri ng and Automati on
Student:Luobifeng Supervisor : Qingyuanjiu
Abstract: Reactive optimizati on and reactive compe nsati on of power system is a valid way to increse the system' s operating voltage and maintenance level .It ' s also the way to reduce the internet loss . This essay summarize what Reactive optimization and reactive compensation
are in our daily life. It also discusses and studies some problems existi ng in reactive optimization and reactive compensation. Voltage is one of the
important targets of Quality of power supply, whose quality will affect stabilization of power grids and electric equipment functioning well
directly. Lin loss and safety in production in industry and
agriculture ,the production 's quality , electrical energy depth loss ,and
electrical energy used by common people every day will be infulenced
directly by it too. voltage qualit is an important factor to affect voltage quality .so voltage qualit and voltage qualit are closely related to each other. The problems about voltage is the problem of reactive energy in in all,to solve the problem of reactive compensation well is very meaningful and necessary. Keywords: Reactive Optimization Reactive Compensation Internet loss of voltage qulity Power Factor
目录
、八—亠
一、 前言 6
二、 无功优化和补偿的原则和类型 6
1、 无功优化和补偿的原则 6
2、 无功优化和补偿的类型 7
三、 输配电网络的无功优化 7
1、 无功优化的目标函数 7
2、