电力系统自动化2011，Vol.35Issue(7)：75-80,6.
电网不对称故障时全功率变流器风电机组控制策略
Simulation on the Control Strategy for a Full Power Converter of Wind Generation Under Grid Fault Conditions
摘要
Abstract
To meet the grid code requirements on the wind turbine generators low voltage fault ride through capability, the characteristic of a fully converted wind turbine is studied under unbalanced system conditions. A model of the power converter under unbalanced grid conditions is established, and the problem existing in the control strategy of positive and negative sequence dual current is analyzed, a IX) sample voltage with variable frequency notch function of dual current control strategy is proposed. When the system frequency fluctuates, a phase-locked loop for correcting the notch filter is added. Simulation results show that the proposed control strategy of dual current, DC feedback voltage with notch function has significant better dynamic regulation performance under asymmetry grid conditions.关键词
风力发电/全功率变流器/鼠笼式异步发电机/电网不对称故障/双电流环控制Key words
wind generation/full power converter/asynchronous squirrel-cage generator/asymmetric fault of power grid/dual current control引用本文复制引用
陈毅东,杨育林,王立乔,孙俊杰,万承宽..电网不对称故障时全功率变流器风电机组控制策略[J].电力系统自动化,2011,35(7):75-80,6.基金项目
国家自然科学基金资助项目(50837003) （50837003）
河北省科技支撑计划资助项目(11213909D). （11213909D）
