电控与光控晶闸管换流阀触发机理对比分析研究

详细信息    查看全文 | 推荐本文 |

英文篇名：Comparative Analysis of Trigger Mechanism for Electric and Light Converter Valve 作者：王振 ; 刘坤 ; 国建宝 ; 唐金昆 英文作者：WANG Zhen;LIU Kun;GUO Jian-bao;TANG Jin-kun;Maintenance &Test Center,CSG EHV Power Transmission Company; 关键词：电控换流阀 ; 光控换流阀 ; 晶闸管电子板 ; 晶闸管电压监视 英文关键词：electric converter valve;;light converter valve;;thyristor electronics board;;thyristor voltage monitoring 中文刊名：DLDZ 英文刊名：Power Electronics 机构：中国南方电网超高压输电公司检修试验中心; 出版日期：2019-03-20 出版单位：电力电子技术 年：2019 期：v.53;No.316 语种：中文; 页：DLDZ201903022 页数：4 CN：03 ISSN：61-1124/TM 分类号：80-83

摘要

根据电控及光控换流阀的触发机理,结合南方电网己有直流输电工程的工程实践,对电控以及光控换流阀控制保护系统进行了深入地对比研究。电控换流阀采用的五脉冲法具有时序性强的特点,同时也存在阀基电子设备(VBE)装置误判和回报信号无法区别的现象。此外,晶闸管电子(TE)板存在的固有缺陷也会导致换流阀元器件损坏和异常导通。光控换流阀将电控换流阀TE板的功能分散到晶闸管电压监视(TVM)和恢复期保护单元(RPU)板,采用了与电控换流阀不同的控制保护原理,消除了电控换流阀固有的缺陷,但也存在换流阀大面积晶闸管无回检信号及VBE装置误报光发射板故障的缺点。最后通过分析南方电网电控及光控换流阀控制保护系统出现的典型故障,总结出了这两种不同控制方式换流阀的优缺点,并提出相关解决建议。
        According to trigger mechanism for electric and light converter valve, combined with the engineering practice, study control and protection system of the converter valve.Five pulse mode of the electric converter valve is sequential. At the same time, there is a phenomenon that the valve base electronics(VBE) device can't distinguish return signals.In addition, due to the inherent defects of thyristor electronics(TE) board, the components of the converter valve are damaged.Functions of the TE board are dispersed into thyristor voltage monitoring(TVM) and recovery protection unit(RPU).The control protection principle is different from electric converter valve, eliminates the inherent defects of electric converter valve,but it also has the disadvantages of large area thyristor with no check signal.At last, through the analysis of typical fault of converter valve, the characteristic of these two different control methods are summarized, and some suggestions are proposed.

引文

[1]赵婉君.高压直流输电工程技术[M].北京:中国电力出版社,2010.
    [2]白光亚.光触发晶闸管换流阀技术及其应用[J].高电压技术,2004,30(11):55-57.
    [3]昃萌,廖敏.故障电流限制器的晶闸管阀触发与监测系统[J].电工技术学报,2010,25(10):191-195.