Dynamic Responses Improvement of Grid Connected WPGS Using FLC in High Wind Speeds

Abstract

Environmental and sustainability concerns are developing the significance of distributed generation (DG) based on renewable energy sources. In this paper, dynamic responses investigation of grid connected wind turbine using permanent magnet synchronous generator (PMSG) under variable wind speeds and load circumstances is carried out. In order to control of turbine output power using Fuzzy Logic controller (FLC) in comparison with PI controller is proposed. Furthermore, the pitch angle based on FLC using wind speed and active power as inputs, can have faster responses, thereby leading to smoother power curves, enhancement of dynamic performance of wind turbine and prevention of mechanical damages to PMSG. Inverter adjusted the DC link voltage and active power is fed by d-axis and reactive power is fed by q-axis (using P-Q control mode). Simulation of wind power generation system (WPGS) is carried out inMatlab/Simulink, and the results verify the correctness and feasibility of control strategy.

Dynamic response improvement of hybrid system by implementing ANN-GA for fast variation of photovoltaic irradiation and FLC for wind turbine

“…In comparing PIDs and the fuzzy logic technics, fuzzy logic has more stability, faster and smoother response, smaller overshoot and does not need a fast processor; also it's more powerful than other non-linear controllers [25][26][27]. In [28][29][30], pitch angle based on FLC is presented.…”