• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文会议>2011 International Conference on Electrical Machines and Systems >Analysis on idle-load grid-connection transient impact current of DFIG
【24h】

Analysis on idle-load grid-connection transient impact current of DFIG

机译：DFIG空载并网暂态冲击电流分析

获取原文
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

If grid-connection impact current is very large, the power grid and dual PWM converters will be damaged. It is necessary to analyze the grid-connection transient current. In this paper based on stator rotor differential equations under the two-phase rotating coordinate system, the grid-connection transient transition process as well as the principle of impact current generation was analyzed in detail, the expression of idle-load grid-connection transient impact current of doubly-fed induction generator (DFIG) was deduced. The relevant factors which affect the value of the impact currents were analyzed and the relationship between grid-connection impact current and the voltage error was obtained. The voltage errors which included voltage amplitude error and phase error were the errors between network voltage and idle-load stator output voltage. The appropriate measures are taken to be able to reduce the impact current and improve system stability.
机译：如果电网连接的冲击电流非常大，则会损坏电网和双PWM转换器。有必要分析并网瞬时电流。本文基于两相旋转坐标系下的定子转子微分方程，详细分析了并网暂态过渡过程以及产生冲击电流的原理，给出了空载并网暂态冲击的表达式。推导了双馈感应发电机（DFIG）的电流。分析了影响冲击电流值的相关因素，得出并网冲击电流与电压误差之间的关系。包括电压幅度误差和相位误差在内的电压误差是电网电压与空载定子输出电压之间的误差。采取了适当的措施以能够减小冲击电流并提高系统稳定性。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号