Research on the Oscillation Suppression Strategy of Grid-connected Direct-drive Wind Farms Via VSC-MTDC Transmission System Under Sending End Fault Scenarios

WANG Qingjie; ZHAO Yufeng; FENG Ledi; YI Lifeng; LI Zhuoyang; MA Jing; SHEN Yaqi; {{custom_author.name_en}}

doi:10.13334/j.0258-8013.pcsee.250033

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Research on the Oscillation Suppression Strategy of Grid-connected Direct-drive Wind Farms Via VSC-MTDC Transmission System Under Sending End Fault Scenarios

更新时间：2026-10-12

- Research on the Oscillation Suppression Strategy of Grid-connected Direct-drive Wind Farms Via VSC-MTDC Transmission System Under Sending End Fault Scenarios
- Vol. 46, Issue 8, Pages: 3210-3224(2026)
- 作者机构：
  
  新能源电力系统国家重点实验室(华北电力大学)，北京市昌平区,102206
- 作者简介：
- 基金信息：
- DOI：10.13334/j.0258-8013.pcsee.250033
  CLC：
- Received：13 March 2025，
  
  Published：2026
- 稿件说明：
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WANG Qingjie, ZHAO Yufeng, FENG Ledi, et al. Research on the Oscillation Suppression Strategy of Grid-connected Direct-drive Wind Farms Via VSC-MTDC Transmission System Under Sending End Fault Scenarios[J]. 2026, 46(8): 3210-3224.
DOI：

WANG Qingjie, ZHAO Yufeng, FENG Ledi, et al. Research on the Oscillation Suppression Strategy of Grid-connected Direct-drive Wind Farms Via VSC-MTDC Transmission System Under Sending End Fault Scenarios[J]. 2026, 46(8): 3210-3224. DOI： 10.13334/j.0258-8013.pcsee.250033.

摘要

针对送端故障情况下直驱风场经多端柔直并网系统振荡抑制困难的问题，该文构建直驱风场经多端柔直并网系统的动态能量模型，揭示送端故障情况下系统的振荡失稳机理，并设计振荡抑制策略。首先，在考虑系统控制环节动态特性的基础上，将系统划分为多个低阶子系统，构建包含存储能量、耗散能量和交互能量的动态能量模型；进一步，计算各交互能量的大小及方向，量化评估各交互能量对系统稳定水平的影响，揭示系统的失稳机理；在此基础上，设计附加控制环节以阻抑振荡能量在系统中传播；最后，通过硬件在环实验验证所提方法的有效性。实验结果表明，所提振荡抑制策略在不同振荡场景下均具备良好的振荡抑制效果，可为大扰动场景下系统振荡稳定分析及抑制提供新的思路。

Abstract

Aiming at the difficulty of oscillation suppression of the grid-connected direct-drive wind farms via voltage source converter based multi-terminal HVDC (VSC-MTDC) transmission system under sending end fault scenarios

a dynamic energy model of the system is established in the paper

the mechanism of the system’s oscillation instability is revealed and an oscillation suppression strategy was designed. Firstly

based on the dynamic characteristics of the control links

the system is divided into several subsystems

and a dynamic energy model including stored energy

dissipation energy and interaction energy is constructed. Further

the magnitude and direction of each interaction energy item are calculated

the influence of each interaction energy item on the system’ stability is quantitatively assessed

and the instability mechanism is revealed. On this basis

the additional control links are designed to inhibit the propagation of oscillation energy. Finally

the accuracy and effectiveness of the proposed method are verified by hardware-in-loop tests. From the results

the proposed oscillation suppression method has good oscillation suppression effect in different oscillation scenarios. And the proposed method can serve as a new universal solution for suppressing oscillation.

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