袁阳;卫志农;王华伟;雷霄;孙国强;

• 1:可再生能源发电技术教育部工程研究中心(河海大学)
• 2:中国电力科学研究院

摘要(Abstract)：

换相失败主要发生于直流输电系统逆变器中,仅通过减小触发延迟角来抑制逆变器换相失败有其局限性。通过逆变器正常换相过程及交流系统故障情况下换相失败机理的分析,指出可通过控制流过逆变器的直流电流来抑制其换相失败的发生;在对现有换相失败预测控制模块(commutation failure prevention,CFPREV)及上述机理分析的基础上,提出了一种适用于逆变器换相失败预测控制的直流电流预测整定方法;最后通过CIGRE HVDC标准测试系统中的仿真测试,验证了算法的有效性,为当前换相失败预防控制措施的研究提供了新的研究方向。

关键词(KeyWords)： 高压直流输电;换相失败;逆变器;直流电流控制;预测控制

Abstract:

Keywords:

基金项目(Foundation): 国家自然科学基金资助项目(51277052,51107032,61104045);; 国家电网公司大电网重大专项资助项目课题(SGCC-MPLG025-2012)~~

作者(Author): 袁阳;卫志农;王华伟;雷霄;孙国强;

Email:

DOI: 10.13335/j.1000-3673.pst.2014.03.003

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