...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Electric power systems research >Grid-fault ride-through analysis and control of wind turbines with doubly fed induction generators
【24h】

Grid-fault ride-through analysis and control of wind turbines with doubly fed induction generators

机译：双馈感应式风力发电机的电网故障穿越分析与控制

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

This paper deals with the low voltage ride-through (LVRT) control of wind turbines with doubly fed induction generators (DFIGs) under symmetrical voltage dips. The investigation first develops a mathematical formula for the rotor current and rotor voltage when DF1G is subjected to a symmetrical voltage dip. From the analysis, the reasons of rotor inrush current and factors influencing it are inferred. Then, a control scheme enhancing the wind turbine LVRT capability is designed and simulated. The proposed control scheme consists of a nonlinear control strategy applied to the rotor-side converter and a dc-link voltage control applied to the grid-side converter. It improves the damping of DF1G transient response and minimizes oscillations of rotor current, electromagnetic torque and dc-link voltage during the generator voltage dip. It also limits the peak value of these quantities. At the end, results of theoretical analyses are verified by time domain simulations.
机译：本文研究了在对称电压骤降下具有双馈感应发电机（DFIG）的风力涡轮机的低压穿越（LVRT）控制。研究首先为DF1G承受对称电压骤降时的转子电流和转子电压建立了数学公式。通过分析，可以推断出转子浪涌电流的原因及其影响因素。然后，设计并模拟了提高风力涡轮机LVRT能力的控制方案。提出的控制方案包括应用于转子侧变流器的非线性控制策略和应用于电网侧变流器的直流环节电压控制。它改善了DF1G瞬态响应的阻尼，并在发电机电压骤降期间将转子电流，电磁转矩和直流母线电压的振荡降至最低。它还限制了这些数量的峰值。最后，通过时域仿真验证了理论分析的结果。

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