高电压技术2017，Vol.43Issue(6)：2088-2096,9.DOI:10.13336/j.1003-6520.hve.20170527046
双馈风电机组运行转速对其轴系振荡影响机理的复转矩分析
Complex Torque Analysis of the Operating Speed's Impacts on the Torsional Oscillation Mode of Doubly-fed Wind Turbine Generation System
摘要
Abstract
The torsional oscillation of doubly-fed induction generator (DFIG) based wind turbine (WT) is discussed.By deducting the transfer functions of both the electromagnetic loop and mechanical loop ofDFIG,a complex torque analysis model which could thoroughly represent the two-mass model's dynamics is established for the first time.Expressions of the synchronizing torque coefficient and damping torque coefficient are also obtained.Based on this model,the operating speed's impacts on those coefficients are further analyzed.And the influence of the operating speed on torsional oscillation when DFIG is under the maximum power point tracking (MPPT) control mode is stated.Finally,the theoretical analysis results are verified by Eigen-value analysis and time-domain simulation results.关键词
轴系振荡/双馈风电机组/运行转速/复转矩分析/小干扰稳定Key words
torsional oscillation/doubly-fed induction generator based wind turbine/operation point/complex torque analysis/small signal stability引用本文复制引用
隆垚,刘巨,姚伟,文劲宇..双馈风电机组运行转速对其轴系振荡影响机理的复转矩分析[J].高电压技术,2017,43(6):2088-2096,9.基金项目
国家自然科学基金(51577075) （51577075）
中央高校基本科研业务费专项资金(2014QN223).Project supported by National Natural Science Foundation of China (51577075),the Fundamental Research Funds for the Central Universities (2014QN223). （2014QN223）
