电力系统自动化2019，Vol.43Issue(4)：60-69,10.DOI:10.7500/AEPS20180330007
变风速下双馈感应发电机非线性鲁棒状态估计反馈控制
Nonlinear Robust State Estimation Feedback Control of Doubly-fed Induction Generator Under Variable Wind Speeds
摘要
Abstract
The high randomness of wind speed and the uncertainties of wind generator modelling have posed great challenges to the optimal operation of wind power generation systems.This paper designs a new nonlinear robust state estimation feedback control (NRSEFC) of doubly-fed induction generator (DFIG) for maximum power point tracking (MPPT).Firstly, the combined effect of wind turbine nonlinearities, generator parameter uncertainties, and wind speed randomness is aggregated into a perturbation, which is then rapidly estimated in real-time by a sliding-mode state and perturbation observer (SMSPO).Furthermore, the perturbation estimation value is fully compensated online as a supplementary control component by a state estimation feedback controller.NRSEFC has the advantages of simple structure, high reliability of linear feedback control, as well as global control consistency and significant robustness of nonlinear robust control, while it does not require an accurate DFIG model and only need the state variables of rotor speed and reactive power.Four case studies, including step change of wind speed, random wind speed, generator parameter measurement error and voltage drop are carried out.Simulation results verify the effectiveness and robustness of the proposed approach.Finally, a dSpace based hardware-in-the-loop (HIL) test validates the application feasibility of the proposed approach.关键词
双馈感应发电机/最大功率点跟踪/状态估计反馈控制/硬件在环实验Key words
doubly-fed induction generator (DFIG)/maximum power point tracking (MPPT)/state estimation feedback control/hardware-in-the-loop test引用本文复制引用
杨博,束洪春,邱大林,朱德娜,韩一鸣,余涛..变风速下双馈感应发电机非线性鲁棒状态估计反馈控制[J].电力系统自动化,2019,43(4):60-69,10.基金项目
国家自然科学基金资助项目(51777078) （51777078）
