换流变分接开关转换选择器产气防治控制策略  

Control Strategy for Preventing Gas Production From Converter Tap Changer Conversion Selector

作　　者：刘志军 李军 刘堃[1] 刘旭辉 LIU Zhi-jun;LI Jun;LIU Kun;LIU Xu-hui(XJ Group Corporation,Xuchang 461000,China;不详)

机构地区：[1]许继集团有限公司,河南许昌461000 [2]国家电网有限公司直流技术中心,北京100032

出　　处：《电力电子技术》2024年第12期26-29,共4页Power Electronics

基　　金：国家电网有限公司总部管理科技项目(5100-202249004A-1-1-ZN)。

摘　　要：此处提出了换流变分接开关转换选择器产气防治控制策略,根据对直流控制系统的快速调节与慢速调节分析,相应地提出了两种不同的防治控制策略,在RTDS仿真环境下,对±800 kV分层特高压直流输电工程进行建模,并详细介绍了两种控制策略以及实现方法;通过对试验数据与结果分析得出两种策略均可以达到减少分接开关频繁过极性的效果,对防治分接开关转换选择器过极性造成的产气起到关键作用。A preventing gas production control strategy is proposed for converter tap changer conversion selectors.Based on the analysis of fast and slow regulation of DC control systems,two different prevention and control strategies are proposed accordingly.In the RTDS simulation environment,a modeling of±800 kV layered ultra-high voltage DC transmission project is carried out,and the two control strategies and implementation methods are introduced in detail.Through the analysis of test data and results,it is found that both strategies can achieve the effect of reducing frequent over polarity of tap changers,playing a key role in preventing gas production caused by over polarity of tap changer conversion selector.

关 键 词：分层特高压 产气防治 分接开关转换 

分 类 号：TM722[电气工程—电力系统及自动化]