电网技术2011，Vol.35Issue(9)：139-143,5.
变速恒频风力发电机空载并网控制策略
Control Strategy for Grid-Connection of No-Loaded Variable Speed Constant Frequency Wind Power Generator
摘要
Abstract
Applying the magnetic field-oriented vector control to grid-connection of doubly fed induction generator, a control strategy for grid-connection of no-loaded variable speed constant frequency (VSCF) wind power generator with AC excitation is established, and the decoupling control of rotor current and rotor flux linkage is implemented to achive the aim of flexibly grid-connection of no-loaded wind power generator. To prove the effectiveness of the proposed control strategy, a simulation model for grid-connection of no-loaded wind power generator is built by Matlab/Simnlink and related simulations are performed. Besides, the experimental verification of grid-connection of no-loaded wind power generator is carried out on an experimental platform of 11kW DFIG system. Results of both simulations and experiments show that using the proposed control strategy the amplitude, frequency and phase of no-loaded wind power generator can be coincided with those of power grid effectively, thus by use of the proposed control strategy the non-impact grid-connection of high-power wind power generator is achievable, meanwhile it also shows that the proposed grid-connection strategy for grid-connection of no-loaded wind power generator is one of ideal grid-connection modes for VSCF wind power generators.关键词
磁场定向/交流励磁/柔性并网/变速恒频/空载风力发电机并网Key words
stator flux-oriented/AC excitation/soft grid connection/variable speed constant frequency/grid-connection of no-loaded wind power generator分类
信息技术与安全科学引用本文复制引用
王勇,张纯江,柴秀慧,杨海军,李荷丹..变速恒频风力发电机空载并网控制策略[J].电网技术,2011,35(9):139-143,5.基金项目
国家自然科学基金项目(50837003). （50837003）
