Control technique for power quality improvement of isolated wind power generation system

Power quality (PQ) problems for renewable energy system (RES) is major challenge using these systems. Amplitude, frequency, and waveform important PQ parameters especially standalone or isolated In this paper we propose RES with wind turbine (WT) permanent magnet synchronous generator (PMSG) to feed different loads (liner, non-liner) through AC-DC-AC converter. The PMSG operate fuzzy logic inertia controller, convert torque form PU Nm. inverter stage in the converter according proportional integral derivative (PID) controller 3rd harmonic injection pulse width modulation (PWM) regulate AC voltage load side. For same case study operating condition, compared result when ordinary PWM PID injection. Voltages total harmonics distortion (THD) was less than 2% liner loads, 3.5% non-liner current load, amplitude between (1-1.03) under speed by proposed controller.