...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Electric power systems research >Enhancing low-voltage ride-through capability of PMSG based on cost-effective fault current limiter and modified WTG control
【24h】

Enhancing low-voltage ride-through capability of PMSG based on cost-effective fault current limiter and modified WTG control

机译：基于经济高效的故障电流限制器和改进的WTG控制，提高PMSG的低电压乘车能力

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

Series single-resistor based scheme (SSRBS) can achieve a favorable low-voltage ride-through (LVRT) enhancement, also has the advantages of low costs and complexity. Its basic idea is to increase the terminal voltage of wind turbine generator (WTG) during grid faults by inserting a series single-resistor into the grid-side circuit. However, traditional SSRBSs cannot tackle different grid voltage sag events due to the constant resistance of the inserted resistor. Besides, as a device-based scheme, the SSRBSs have weak cost-effectiveness especially, utilizing the superconducting fault current limiter (SFCL). To solve these problems, this paper proposes a cost-effective LVRT scheme by cooperating a resistive-type SFCL and two modified controls. In the cooperative scheme, a surplus power dissipating mechanism based on SFCL is designed, which provides a novel way for SFCL to improve LVRT capability. Moreover, modified reactive power control for WTG is proposed to ensure that SFCL can dissipate constant surplus power irrespective of grid voltage magnitude and to provide reactive power support. Additionally, another modified WTG control is proposed for assisting with the SFCL to dissipate surplus power, which reduces the tape usage and energy-loss of SFCL, thus improving cost-effectiveness. Several cases demonstrate the feasibility and superiority of this scheme.
机译：基于系列的基于电阻的方案（SSRB）可以实现有利的低压骑行（LVRT）增强，也具有低成本和复杂性的优点。其基本思想是通过将串联单电阻插入到电网侧电路中，在电网故障期间增加风力涡轮发电机（WTG）的端子电压。然而，由于插入电阻的恒定电阻，传统的SSRBS不能解决不同的电网电压凹凸事件。此外，作为基于器件的方案，SSRBS尤其具有较弱的成本效益，利用超导故障电流限制器（SFCL）。为了解决这些问题，本文通过协作电阻型SFCL和两个修饰的对照提出了成本效益的LVRT方案。在合作方案中，设计了一种基于SFCL的剩余功耗耗散机制，为SFCL提供了一种提高LVRT能力的新方法。此外，提出了用于WTG的改进的无功功率控制，以确保SFCL不管电网电压幅度如何散发恒定的剩余功率，并提供无功功率支撑。另外，提出了另一种改进的WTG控制，用于辅助SFCL来消散剩余功率，这减少了SFCL的胶带使用和能量损失，从而提高了成本效益。有几个案例展示了该方案的可行性和优越性。

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