【作者】 李晓鹏；

【导师】 王钢； 黄祖昌；

【作者基本信息】 华南理工大学 ， 电气工程， 2010， 硕士

【摘要】 近20年来,随着电力电子技术的发展,由于长距离输电的经济性,高压直流输电迅速发展,尤其在我国电网的发展,高压换流阀是高压直流输电工程的关键部件,它的技术性能的好坏在某种程度上决定了该直流输电工程的成败,而检验换流阀技术性能的方法就是型式试验,绝缘型式试验就是其中之一,绝缘试验对高压换流阀的考核非常全面,从阀的支承到多重阀再到单阀,从外部到内部,从个体到整体,只有如此严格苛刻的考核才能得到高压换流阀详细的技术性能报告,从而知道该换流阀的设计是否符合该项目工程的技术要求。而国内对能对高压换流阀绝缘试验的机构还很少,对绝缘型式试验的设计研究可以对有关单位及部门起积极的参考意义。本文简述了高压直流输电技术的发展,分析了高压直流输电的优缺点,介绍了国内外高压直流工程的发展情况,对高压换流阀的发展历程进行了介绍。本文还具体介绍了高压换流阀的结构组成,技术特点,对高压换流阀的试验项目进行了详尽的陈述,分析了例行试验的作用和特点,介绍了运行型式试验的项目和要求,绝缘型式试验的项目及作用,还列举了型式试验的试验判据。为了满足绝缘型式试验的要求,对试验对象有详细的规定,设计了试验的布局,针对具体试验项目要求,设计了高压换流阀支承的绝缘试验的步骤,具体试验电路和试验接线图,多重阀的试验步骤,电路和接线图,单阀的试验步骤,电路和接线图。根据设计进行了试验,得到了试验的结果,符合国家标准及技术规范的要求。更多还原

【Abstract】 In recent 20 years,with development of power electronics and more cheaper for long distance power transmission than AC, HVDC(high voltage direct current transmission) develops quickly,special in China.High voltage converter valve is the key component of HVDC project,its technical performance determines the performance of HVDC project in some way. The best solution to test valve is type test, the dielectric type test is one part of type test.It is full check for high voltage converter valve during dielectric type test, including valve support,single valve,multi-valve,from external to internal,from part to whole, we can get the detail performance report though strict test,then analyse the designing of the valve whether to meet the technical requirement of this project. There are a few lab who have capacity to do the dielectric type test in China,so it is good reference for relative institute to do the design research of high voltage for dielectric type test.This paper states the development of HVDC technology,indicates the advantage and shortage of HVDC,introduces the information for HVDC project in the world,including in China,and show the development history of high voltage converter valve.This paper introduces the valve config and technical information,lists the valve test items one by one,including the routine test,operational type test,dielectric type test,states test criterion for type test.To meet the requirement of dielectric type test, it is detail definition for test object, designed for test disposal.As per detail requirement of dielectric type test,it is designed for valve support,single valve and multi-valve how to perform the test,how to build the test circuit,how to connect the test equipment with test object.The tests are performed according the design, the final test results complys the requirements of IEC standard and technical specification.更多还原