变电站电压无功和谐波综合控制分析  

Analysis of voltage reactive-power and harmonic integrated control in regional power system

作　　者：黄俊[1] 贾秀芳[1] 赵成勇[1] 龙文[2] 

机构地区：[1]华北电力大学电力系统保护与动态安全监控教育部重点实验室,河北保定071003 [2]重庆市电力公司,重庆400014

出　　处：《华北电力大学学报（自然科学版）》2011年第6期6-10,共5页Journal of North China Electric Power University：Natural Science Edition

基　　金：河北省自然科学基金资助项目(E2011502097)

摘　　要：为避免投入电容器补偿无功不足时造成变压器低压侧谐波电流放大,提出了基于变压器低压侧电压总谐波畸变率(THDU)、低压侧母线电压和功率因数的电压无功谐波综合控制策略的27区法,并具体描述了综合控制策略的实现方案。通过在PSCAD/EMTDC环境下对各种运行方式的仿真分析,验证了该控制策略的有效性和合理性,在调整电压和无功的同时有效地抑制了谐波放大。In order to avoid the harmonic current amplification caused by the capacitor compensation in the transformer low voltage side,this paper proposes a integrated control strategy about the voltage reactive-power and harmonic which is called twenty-seven zone theory.The strategy is based on voltage total harmonic distortion rate、bus bar voltage and power factor in the transformer low voltage side.The implementation scheme of the strategy is described.The simulation analysis in various operation mode is completed under the environment of PSCAD/EMTDC,the simulation results verifies the validity and rationality of the control strategy,harmonic amplification is effectively inhibited when adjusting voltage and reactive power.

关 键 词：电压无功控制 谐波 27区图 控制策略 PSCAD/EMTDC 

分 类 号：TM761[电气工程—电力系统及自动化]