晶闸管换流阀特殊运行试验项目实施方法与故障分析

发布时间：2018-01-22 11:51

本文关键词： 高压直流输电晶闸管换流阀运行试验实施方法故障现象　出处：《高压电器》2016年11期 　论文类型：期刊论文

【摘要】：大功率晶闸管换流阀试验的目的在于验证其符合设计准则与标准要求,并确保晶闸管换流阀在正常与故障条件下均能完成即定的工作目标而不致于损坏或影响到所接入的电网系统。合成试验回路法因接入方式灵活、环保节能等优点成为各试验机构及生产厂家首选的试验方法。笔者基于合成试验回路介绍了晶闸管换流阀特殊试验项目的实施方法并比较了不同方法之间的差异。得出断续直流电流试验中,电流源法等价性好,但电压源法严酷性及零电流持续时间的可调节性好;暂态欠电压试验中,电压源法的等价性及可控性优于水电阻法;最后介绍了故障电流试验可能出现的故障现象并分析了故障原因,为晶闸管阀生产制造与试验技术人员提供参考。
[Abstract]:The purpose of the high-power thyristor converter valve test is to verify that it meets the design criteria and standards. And ensure that the thyristor converter valve under normal and fault conditions can achieve the fixed working objectives without damaging or affecting the connected power grid system. The synthetic test circuit method is flexible because of the access mode. The advantages of environmental protection and energy saving have become the first choice of test methods for the test organizations and manufacturers. Based on the synthetic test loop, the author introduces the implementation method of the special test project of thyristor converter valve and compares the differences between different methods. . in the test of intermittent DC current. The current source method is equivalent, but the voltage source method is harsh and the zero current duration is adjustable. In the transient undervoltage test, the equivalence and controllability of the voltage source method is better than that of the water resistance method. Finally, the possible fault phenomena in the fault current test are introduced and the causes are analyzed, which provides a reference for the production, manufacture and testing of the thyristor valve.
【作者单位】：西安高压电器研究院有限责任公司;西安交通大学;
【分类号】：TM721.1;TM506
【正文快照】： 0引言近年来,伴随着用电量的不断增长,国家交流输电、直流输电技术均得到了长足的发展,尤其直流输电技术因其长距离输电时损耗小、走廊窄等固有优势,更是飞速发展。晶闸管换流阀作为直流输电工程的关键设备亦得了长足发展[1]。换流阀运行试验验证了换流阀的运行性能,保证了工

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