Analysis of Influencing Factors of Subsynchronous Oscillation in Large-scale Direct-driven Wind Farm

DENG Wangbo; WANG Haiyun; CHANG Xiqiang; GUO Xiaolong

doi:10.13296/j.1001-1609.hva.2019.06.032

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Analysis of Influencing Factors of Subsynchronous Oscillation in Large-scale Direct-driven Wind Farm

更新时间：2025-04-26

- Analysis of Influencing Factors of Subsynchronous Oscillation in Large-scale Direct-driven Wind Farm
- High VoltageApparatus Vol. 55, Issue 6, Pages: 218-224(2019)
- 作者机构：
  
  1. 新疆大学电气工程学院
  2. 国网陕西省电力公司检修公司
  3. 新疆省电力调度控制中心
- 作者简介：
- 基金信息：
- DOI：10.13296/j.1001-1609.hva.2019.06.032
  CLC： TM614;TM712
- Published：2019
- 稿件说明：
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[1]邓王博,王海云,常喜强,郭小龙.大规模直驱风电场次同步振荡的影响因素分析[J].高压电器,2019,55(06):218-224.

DENG Wangbo, WANG Haiyun, CHANG Xiqiang, et al. Analysis of Influencing Factors of Subsynchronous Oscillation in Large-scale Direct-driven Wind Farm[J]. High voltageapparatus, 2019, 55(6): 218-224.
[1]邓王博,王海云,常喜强,郭小龙.大规模直驱风电场次同步振荡的影响因素分析[J].高压电器,2019,55(06):218-224. DOI： 10.13296/j.1001-1609.hva.2019.06.032.

DENG Wangbo, WANG Haiyun, CHANG Xiqiang, et al. Analysis of Influencing Factors of Subsynchronous Oscillation in Large-scale Direct-driven Wind Farm[J]. High voltageapparatus, 2019, 55(6): 218-224. DOI： 10.13296/j.1001-1609.hva.2019.06.032.

摘要

针对哈密地区大规模风电场在无串补情况下发生的次同步振荡现象。文中在PSCAD/EMTDC软件上搭建了多机直驱风电场无串补输电系统模型

结合特征值分析法研究了风速、网侧控制器参数、风电汇集点短路比和火电机组出力对次同步振荡特性的影响

并进行仿真验证。结果表明:无串补情况下

风电场在各风段均有可能发生次同步振荡

风速小

振荡频率高

风速大

振荡频率低。网侧控制器比例增益越大

振荡频率越小

积分增益越大

振荡频率越大。短路比越小

系统发生次同步振荡的可能性越大。低功率运行时

火电机组出力在50%～80%范围内

系统发生次同步振荡的可能性最大。

Abstract

In this paper

for large wind farms in Hami area in the series compensated case of subsynchronous oscillation phenomenon

based on PSCAD/EMTDC software

the model of no series compensated transmission system of multi machine direct-drive wind power farm is built

combined with eigenvalue analysis method

the effects of wind speed

parameters of grid-side controller

short circuit ratio of wind power collecting point and output of thermal power unit on the sub-synchronous oscillation characteristics are studied and verified by simulation. The results show that there is no series compensation case

the wind farm may occur in the subsynchronous oscillation in the wind while the wind speed is small

high oscillation frequency

wind speed

low oscillation frequency. The net side controller proportional gain more. Vibration swing frequency is small

the greater the integral gain

oscillation frequency is greater. Short circuit ratio decrease the possibility of system subsynchronous oscillation increases. Low power operation

power units within the range of 50%～80% and the possibility of system subsynchronous oscillation.

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