湖北民族学院学报（自然科学版）2016，Vol.34Issue(1)：45-49,63,6.DOI:10.13501/j.cnki.42-1569/n.2016.03.012
新颖的双馈式风力发电机低电压穿越控制策略
Novel Control Strategy for Low Voltage Ride-through of Doubly-fed Wind Power Generator
摘要
Abstract
Aiming at the defects of LVRT control strategies of doubly-fed wind power generator in the cur-rent literatures,a novel LVRT control strategy is proposed.During the grid fault,the rotor overcurrent is suppressed by using the DHCC which has the fast transient response speed and the insensitivity to param-eter variations.And the dc-link voltage is restrained by means of the crowbar technology which absorbs the excess energy and protects the overvoltage of dc-link bus.The dynamic simulation model based on the proposed LVRT control strategy is structured in Mtalab / Simu1ink platform. The LVRT performances of doubly-fed wind power generator under three kinds of typical grid fault are investigated,and the feasibili-ty of the proposed LVRT control strategy is verified.The simulation results show that the proposed LVRT control strategy suppresses the overcurrent of rotor windings and the capacitor overvoltage of dc-link.So, the proposed control strategy improves the LVRT performance of doubly-fed wind power generator.关键词
双馈感应发电机/低电压穿越/双滞环电流控制器/crowbarKey words
doubly-fed induction generator(DFIG)/low voltage ride-through(LVRT)/double hystere-sis current controller(DHCC)/crowbar分类
信息技术与安全科学引用本文复制引用
高仕红..新颖的双馈式风力发电机低电压穿越控制策略[J].湖北民族学院学报（自然科学版）,2016,34(1):45-49,63,6.基金项目
湖北省自然科学基金项目 （）
