Scholarlink

<p>In response to the serious problem that the existing low pass filter (LPF) droop control implemented on the doubly-fed induction generator (DFIG), which is that the DFIG does not achieve the emulation of synchronous generator (SG) characteristics and overcurrent occurs in the rotor side during transient voltage dip (VD). Based on the in-depth analysis of the LPF droop characteristics and the equivalent principle of the SG characteristics, combined with the mechanism analysis of LPF droop control applied to DFIG, then the conclusion is obtained that the lack of voltage transient components in the reactive-voltage branch of LPF droop control during transient periods is the fundamental cause of rotor overcurrent. Therefore, a method for obtaining transient voltage components is researched, and a novel LPF droop control approach utilizing transient component compensation is proposed by integrating the mechanism of emulating the excitation traits of the SG. Ultimately, simulation trials are conducted to confirm the availability of the designed control approach in mitigating rotor overcurrent of DFIG during transient periods and achieve equivalent synchronization of DFIG on the characteristics of SG, thereby improving the grid-forming (GFM) ability and fault ride-through (FRT) ability of DFIG during transient periods.</p>

错误：搜索内容不能为空，请输入英文关键词
错误：关键词超出字数限制，请精简
高级检索

A Novel LPF Droop Control for DFIG Based on Transient Component Compensation

  • 期刊论文

  • 发表日期：

    2026年4月21日

查看全文
  • Long Xian,
  • Lizhen Wu,
  • Wei Chen,
  • Tingting Pei,
  • Xingfeng Xie

摘要

In response to the serious problem that the existing low pass filter (LPF) droop control implemented on the doubly-fed induction generator (DFIG), which is that the DFIG does not achieve the emulation of synchronous generator (SG) characteristics and overcurrent occurs in the rotor side during transient voltage dip (VD). Based on the in-depth analysis of the LPF droop characteristics and the equivalent principle of the SG characteristics, combined with the mechanism analysis of LPF droop control applied to DFIG, then the conclusion is obtained that the lack of voltage transient components in the reactive-voltage branch of LPF droop control during transient periods is the fundamental cause of rotor overcurrent. Therefore, a method for obtaining transient voltage components is researched, and a novel LPF droop control approach utilizing transient component compensation is proposed by integrating the mechanism of emulating the excitation traits of the SG. Ultimately, simulation trials are conducted to confirm the availability of the designed control approach in mitigating rotor overcurrent of DFIG during transient periods and achieve equivalent synchronization of DFIG on the characteristics of SG, thereby improving the grid-forming (GFM) ability and fault ride-through (FRT) ability of DFIG during transient periods.