基于无功补偿晶闸管投切电容器的研究  

Research of thyristor switching capacitor based on reactive power compensation controller

作　　者：沈赋 尹斌[1] 孙维广[1] 薛鹏[1] 

机构地区：[1]河海大学能源与电气学院,南京211100

出　　处：《电测与仪表》2015年第9期87-90,共4页Electrical Measurement & Instrumentation

摘　　要：目前电力系统里,主要负荷一般都呈感性且功率因数较低。感性负荷不仅从电网中吸收一定有功功率,同时吸收了无功功率,导致电网电压有一定的下降,造成电能的浪费。通过对电容器组的投切控制进行无功补偿,能够提高功率因数,改善电网电压的质量。国内外惯用的投切电容器的方式存在一定的浪涌和冲击,对设备存在损害,不能够满足社会发展要求。因此,提出了一种基于无功补偿晶闸管投切电容器(TSC)的方式,实现了投切瞬间无浪涌、无冲击。通过在MATLAB/SIMULINK环境进行仿真,验证了正确性。最后搭建了实验样机,结果表明TSC无功补偿装置具有良好的性能。Nowadays, the main load is inductive and power factor are generally low in the power system .The induc-tive load not only absorbs a certain amount of active power but also absorbs the reactive power at the same time , which leads to the grid voltage drop , and waste the energy .Through the capacitor switching control for reactive power com-pensation , the power factor and the quality of the grid voltage can be improved .In the domestic and foreign capacitor switching conventional ways , there still exist a certain impact and surge which damage to the equipment and can ’ t meet the requirements of social development .Therefore , this paper proposed a way that switching capacitor based on power compensation controller , realizing switch without surge and impact .In the MATLAB /SIMULINK environment , the simulation results demonstrate the correctness of the design .Finally, we make an experimental prototype , and the results show a good stable property with the thyristor switching capacitor based on power compensation controller .

关 键 词：功率因数 晶闸管投切电容器 无功补偿 

分 类 号：TM772[电气工程—电力系统及自动化]