文档介绍：10k 柱上两路编码控制动态无功补偿装置的研制
金黎,李唐盛
西安森宝电气工程有限公司
摘要:无功补偿是降低电网损耗,提高配电效率的有效手段。本文主要对10kV柱上无功补偿的现状进行分析,提出了基于多路动态补偿的思想,研制了10KV柱上两路编码控制动态无功补偿装置。该装置应用单片机技术和无线通信技术,能实时地反映电网功率因数和无功的变化状况,动态跟踪补偿10kV线路的无功,基本做到精补细补,而且具有“四遥”功能,可存储两个月的历史数据,并可通过RS-232无线通讯进行参数设置和数据传送。本装置对于提高电压合格率和降低网损有重大的意义。
关键词: 两路编码柱上动态无功补偿单片机 RS-232
Abstract: Reactive pensation is an effective method to reduce the loss of power grid and raise the efficiency of transmission. This paper analyses the actuality of reactive pensation on 10 kV power line on pole and designs an equipment of dynamic reactive pensation which based on a two-path coding control. This equipment applies the new technology of single-puter and wireless, can measure the real-time power factor and reactive power, and can pensate for the reactive power to rather high accuracy. There is also a function of four- remote control with this equipment, which can store two months of the history-data and can set and transmit the parameter and data by way of wireless. This equipment is of high value for increasing the power factor and reducing the loss of power grid .
Key words: two-path coding control; on pole; automatic reactive-pensation; single-puter; RS-232 interface
引言
功率因数和无功平衡是衡量电网质量的重要标志。我国农网普遍存在供电半径长、电压质量差、功率因数低的状况。如果无功能得到有效的平衡,不仅能大大降低电网的损耗,而且对提高电压质量具有重要的意义。但是,目前我衡。因此提高电网功率因数、平衡无功、提高电压质量、降低线损,是电力系统的一个重要课题。现今国内大部分的无功补偿装置都是并接电容器固定补偿,