Load Characteristic Analysis of Grid Fault Ride-through Process for DFIG Based Large Wind Turbine

You YING; Yong SUN; Jing YANG; Min HONG

doi:10.7500/AEPS20190911006

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Load Characteristic Analysis of Grid Fault Ride-through Process for DFIG Based Large Wind Turbine

Application Research | 更新时间：2025-06-16

- Load Characteristic Analysis of Grid Fault Ride-through Process for DFIG Based Large Wind Turbine
- Automation of Electric Power Systems Vol. 44, Issue 12, Pages: 131-138(2020)
- 作者机构：
  
  1. 浙江运达风电股份有限公司，浙江省杭州市 310012
  2. 浙江省风力发电技术重点实验室，浙江省杭州市 310012
- 作者简介：
- 基金信息：
  
  National Key R&D Program of China
- DOI：10.7500/AEPS20190911006
  CLC：
- Received：11 September 2019，
  
  Revised：2020-02-15，
  
  Published Online：16 April 2020，
  
  Published：25 June 2020
- 稿件说明：
移动端阅览
应有,孙勇,杨靖等.大型双馈风电机组电网故障穿越过程载荷特性分析[J].电力系统自动化,2020,44(12):131-138.

YING You,SUN Yong,YANG Jing,et al.Load Characteristic Analysis of Grid Fault Ride-through Process for DFIG Based Large Wind Turbine[J].Automation of Electric Power Systems,2020,44(12):131-138.
应有,孙勇,杨靖等.大型双馈风电机组电网故障穿越过程载荷特性分析[J].电力系统自动化,2020,44(12):131-138. DOI： 10.7500/AEPS20190911006.

YING You,SUN Yong,YANG Jing,et al.Load Characteristic Analysis of Grid Fault Ride-through Process for DFIG Based Large Wind Turbine[J].Automation of Electric Power Systems,2020,44(12):131-138. DOI： 10.7500/AEPS20190911006.

摘要

目前，针对大型双馈风电机组电网故障穿越过程载荷特性的研究不足。首先，基于弹簧-阻尼-质量建模方法，建立了双馈风电机组传动链轴系载荷响应模型及塔架左右方向运动响应模型，获得系统固有谐振频率及阻尼系数解析表达式，理论分析结果表明，电网故障穿越过程可能引起传动链扭振和塔架左右晃动。其次，建立GH Bladed-MATLAB联合仿真模型，并基于此研究了电网对称与不对称故障对传动链轴系及塔架左右载荷特性的影响，仿真结果验证了理论分析的正确性。最后，进一步研究了不同有功恢复策略对机组载荷的影响，结果表明，有功功率恢复速率过快会导致机组载荷大幅增加，并得出了“机械友好型”风电机组故障电压穿越控制原则。

Abstract

Currently

the research on the load characteristics of grid fault ride-through of doubly-fed induction generator (DFIG) based wind turbines is insufficient. Firstly

based on the spring-damping-mass modeling method

response models of DFIG based wind turbines for the load of drive train shafting and the side-to-side vibration of tower are established

and then the analytical expressions of the system natural resonance frequency and damping coefficient are obtained. The theoretical analysis results show that the grid fault ride-through process may cause torsional vibration of the drive train and the side-to-side vibration of tower. Secondly

a co-simulation model of GH Bladed and MATLAB is established

and the effects of symmetrical and asymmetrical grid fault ride-through processes on load characteristics of the drive train shafting and tower based on the co-simulation model are studied. Simulation results verify the correctness of the theoretical analysis. Finally

the influence of different active power recovery strategies on the load of wind turbines is further analyzed. The research results show that the over-fast active power recovery rate will significantly increase the load of wind turbines. Therefore

the principle of “mechanically friendly” grid fault ride-through control for wind turbines is further proposed.

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Keywords

references

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