10kV晶闸管变压式电容无功补偿方法的研究  

Study on 10kV capacitor reactive power compensation by adjusting voltage with thyristors

作　　者：王建元[1] 马雪珂 鞠默欣[1] 徐志璇 

机构地区：[1]东北电力大学,吉林吉林132012

出　　处：《电测与仪表》2015年第5期25-29,34,共6页Electrical Measurement & Instrumentation

摘　　要：提出一种通过晶闸管开关装置直接调节电容器两端电压以调节电容无功功率的方法,介绍了该方法的原理及接线。对10k V小容量的补偿装置进行了一些主要设备参数的计算,还提出了换级控制方法,并利用MATLAB/Simulink对换级过程的有关电压和电流暂态特性进行了仿真分析,结果表明:补偿装置能多级、大范围调节容性无功,换级控制暂态性能良好,较之于其它快速补偿装置综合工程造价低,有望用于高压电网。A method for adjusting the reactive power of capacitor by using thyristor switching device to change the ca -pacitor voltage directly and the wiring of the principle are proposed in this paper .The main calculations for a number of 10 kV small capacity device＆#39;s parameters and the tap-changing control method are also analyzed .A simulation is conducted by MATLAB/Simulink for the transient characteristics of corresponding voltage and current in the tap chan-ging process .The results indicate that the device can adjust capacitive reactive power in multi-stages and large scale and the transient performance in grade-changing process is good .The project costs lower than other fast reactive com-pensation devices ,and this equipment is expected to be widely used in high voltage power network .

关 键 词：变压式电容无功补偿 晶闸管开关装置 换级控制 暂态特性 

分 类 号：TM726[电气工程—电力系统及自动化]