中国电机工程学报2026，Vol.46Issue(16)：5953-5965,中插21,14.DOI:10.13334/j.0258-8013.pcsee.250664
基于变工况等效模型和最优紧急功率控制的直驱风电场次/超同步振荡抑制方法
Sub/Super-synchronous Oscillation Suppression Method for Direct-driven Wind Farm Based on Variable Operating Condition Equivalent Model and Optimal Emergency Power Control
摘要
Abstract
The dynamic interaction between various power electronic devices and power grids in modern power systems can lead to serious sub/super-synchronous oscillation issues.Due to the insufficient real-time performance of controller parameter/structure modification,current oscillation suppression methods mostly employ direct wind farm tripping strategy,which exacerbate grid impacts and exhibit poor economy.Therefore,this paper proposes a sub/super-synchronous oscillation suppression method for direct-driven wind farm based on variable operating condition equivalent model and optimal emergency power control.Firstly,an equivalent mathematical model is established by characterizing direct-driven wind farm admittance under multiple operating conditions as functions of operational variables.Based on the impedance method,a method for determining the controllable domain of direct-driven wind farm power adjustment is proposed with the objective of mitigating oscillation.Within this domain,the oscillation suppression problem is formulated as a multi-objective optimization problem that simultaneously considers economic efficiency and suppression effectiveness,and an emergency power control strategy is proposed for sub/super-synchronous oscillation suppression.The proposed method does not require modifying converter control parameters or structures,and can achieve oscillation suppression through optimal emergency power control while minimizing power loss.Finally,a simulation model based on actual multiple wind farms is analyzed to verify the effectiveness and economy of the proposed method,as well as its advantages over existing methods.关键词
次/超同步振荡/振荡抑制/等效模型/紧急功率控制Key words
sub/super-synchronous oscillation/oscillation suppression/equivalent model/emergency power control分类
信息技术与安全科学引用本文复制引用
冯双,崔振园,雷家兴,汤奕..基于变工况等效模型和最优紧急功率控制的直驱风电场次/超同步振荡抑制方法[J].中国电机工程学报,2026,46(16):5953-5965,中插21,14.基金项目
国家自然科学基金项目(52377084) （52377084）
中央高校基本科研业务费专项项目(2242024RCB0019). Project Supported by National Natural Science Foundation of China(52377084) （2242024RCB0019）
Fundamental Research Funds for the Central Universities(2242024RCB0019). （2242024RCB0019）
