高远;金宇清;鞠平;周勤勇;

• 1:河海大学能源与电气学院
• 2:中国电力科学研究院

摘要(Abstract)：

加装Crowbar电路是双馈感应风力发电机实现低电压穿越的常用措施。为考虑低电压穿越对风电场动态等值的影响,首先分析了Crowbar的动作特性,对比了两种常用投切策略对电网稳定性的影响,以及同种投切策略下Crowbar不同退出时间对风电场出口处动态特性的影响。然后研究了风电机组不同运行状态对Crowbar启动时间的影响。仿真结果表明,凡是Crowbar发生动作的机组,在机电暂态仿真步长下其Crowbar启动时间几乎是一致的。在此基础上,提出了基于Crowbar动作区域曲线判断Crowbar动作情况,并以Crowbar是否动作作为分群准则的风电场分群等值方法。最后在DigS ILENT平台上搭建算例,验证了等值方案的有效性。

关键词(KeyWords)： 双馈感应发电机;低电压穿越;风电场;动态等值

Abstract:

Keywords:

基金项目(Foundation): 国家863高技术基金项目(2011AA05A103);; 国家自然科学基金项目(51137002,51190102)~~

作者(Author): 高远;金宇清;鞠平;周勤勇;

Email:

DOI: 10.13335/j.1000-3673.pst.2015.03.007

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