摘要
建立数学模型,研究在电网5次、7次谐波工况下,双馈风电机组的谐波产生机理。同时,针对机组受电网影响产生的大量谐波,提出一种谐波电流抑制策略——VIPR策略。搭建仿真模型,以3.0 MW容量双馈风电机组为例,搭建双馈风电机组GH Bladed-MATLAB联合仿真精细化模型,并模拟电网5次、7次谐波工况,复现VIPR策略切入工况,组成两组控制变量组。控制变量组的仿真对比结果,不仅验证了所搭建数学模型及所研究谐波产生机理的准确性,还证明了提出的VIPR策略的合理性,为日后针对双馈风电机组的电能质量谐波研究提供方向,为谐波抑制提供方法。
A mathematical model was established to study the harmonic generation mechanism of DFIG wind turbines under the 5th and 7th harmonic conditions of the power grid.At the same time,aiming at the large number of harmonics generated by the power grid of the unit,a harmonic current suppression strategy-VIPR strategy was proposed.Taking the 3.0 MW capacity doubly-fed wind turbine as an example,a refined model of GH Bladed-MATLAB joint simulation of the doubly-fed wind turbine was constructed.The 5th and 7th harmonic conditions of the power grid were simulated,and the VIPR strategy entry conditions were reproduced,and two sets of control variable groups were formed.The simulation and comparison results of the control variable group not only verify the accuracy of the mathematical model and the harmonic generation mechanism studied,but also prove the rationality of the proposed VIPR strategy,which provides direction for future research on power quality harmonics of doubly-fed wind turbines and provides a method for harmonic suppression.
作者
张书涵
杨靖
许国东
赵欣
法拉蒂尔
ZHANG Shuhan;YANG Jing;XU Guodong;ZHAO Xin;FA Ladier(Zhejiang Windey Co.,Ltd.,Hangzhou 310012,China;Key Laboratory of Wind Power Technology of Zhejiang Province,Hangzhou 310012,China)
出处
《电工技术》
2023年第1期29-33,37,共6页
Electric Engineering
关键词
双馈风电机组
谐波
联合仿真
变流器
DFIG wind turbine
harmonic
united simulation
converter
