变压器式可控电抗器的晶闸管阀组选型  

Selection of Thyristor Valve for Controllable Reactor of Transformer Type

作　　者：龚岩[1] 田铭兴[1] 

机构地区：[1]兰州交通大学自动化与电气工程学院,兰州730070

出　　处：《高压电器》2015年第8期102-106,113,共6页High Voltage Apparatus

基　　金：国家自然科学基金项目资助(51167009;51367010);甘肃省科技计划项目资助(1304WCGA181);兰州市科技计划项目资助(2013-4-111)~~

摘　　要：为了确定变压器式可控电抗器(controllable reactor of transformer type,CRT)的控制绕组回路中串联的晶闸管阀组,对晶闸管器件进行了计算和选型。为了降低控制难度,计算考虑要尽量提高晶闸管的电流利用率及电压利用率并且尽可能减少晶闸管阀组中晶闸管器件的数量。首先对控制绕组的变比进行了计算,给出了在固定单支路工作模式下CRT的工作绕组与控制绕组之间的最优变比;然后根据最优变比,结合市场上常见的晶闸管型号,计算出相应的晶闸管器件的功耗及温升情况,计算结果满足要求。验证了CRT的工作绕组与控制绕组之间可以采用的最优变比。To determine the thyristor valve group in series with the control winding circuit for controllable reactor of transformer type（CRT）,the thyristor devices are calculated and selected. The calculation considers the maximum utilizations of thyristor current and voltage and the minimum number of thyristor devices to reduce the control difficulty. Firstly,the control winding ratio is calculated to obtain the optimal ratio of working winding to control winding of CRT at a fixed single branch mode. Then, according to the optimal ratio, the power consumption and temperature rise of the thyristor devices are calculated considering the common commercial thyristor types. The calculation results meet the requirements. Thus,the optimal ratio of working winding to control winding of CRT is obtained.

关 键 词：变压器式可控电抗器 晶闸管阀组 串联级数 温升 

分 类 号：TM47[电气工程—电器]