一种方形壳体式新型饱和电抗器研制与工程应用  

Development and Engineering Application of a New Square Shell Type Saturated Reactor

作　　者：马元社 董妍波 娄彦涛 刘琦 MA Yuanshe;DONG Yanbo;LOU Yantao;LIU Qi(Xi’an XD Power Systems Co.,Ltd.,Xi’an 710075,China)

机构地区：[1]西安西电电力系统有限公司,西安710075

出　　处：《高压电器》2023年第3期8-13,共6页High Voltage Apparatus

摘　　要：饱和电抗器作为晶闸管换流阀的核心部件,主要用于抑制电流变化率、在高频电压冲击下分摊硅堆电压以及均衡换流阀电压分布的作用。西门子技术饱和电抗器结构复杂、水路接口多,随运行时间增加,工程中已多次出现漏水、二次电缆磨损、铁心硅钢片脱落、母排发热等问题,严重影响了直流系统安全稳定运行。文中以解决上述问题为目标,提出了一种用于工程改造替换进口电抗器的方形壳体式饱和电抗器设计方案,从饱和电抗器的关键参数设计、结构设计、水路设计和试验4方面,介绍了新型饱和电抗器的技术特点、性能指标和试验情况。该型饱和电抗器已在中国贵广和向上等直流工程中实现进口电抗器的批量替换,性能稳定,运行情况良好。同时也为后续新的高压直流工程换流阀设计提供了一种新的电抗器方案。The saturated reactor,as the core component of thyristor converter valves,is mainly used to suppress current variation rate,share silicon stack voltage under high frequency voltage impulse and balance voltage distribution of converter valve.The saturated reactor with certain foreign technology has complex structure and multiple waterway interfaces.With the increase of operation time,such issues as water leakage,abrasion of secondary cable,fell off of core silicon steel sheet and heating of busbar have happened in the project,which affect seriously safe and stable operation of DC system.With solving above problems as target in this paper,the design scheme of square shell type saturated reactor used in engineering reconstruction to replace imported reactors is proposed.The technical characteristics,performance index and test situation of the new type saturated reactors are introduced from such four aspects as the design of key parameters,structure,waterway and test.This type of saturated reactor with stable performance and perfect operation has been used to achieve bulky replacement of the imported reactors in some domestic projects such as Gui-Guang and Xiang-Shang HVDC projects.At the same time,it also provides a new design scheme of reactor scheme for the design of converter valve in new HVDC projects.

关 键 词：晶闸管换流阀 方形壳体式 饱和电抗器 工程应用 

分 类 号：TM721.1[电气工程—电力系统及自动化] TM474