Modeling of Maximum Power Point Tracking Based Photovoltaic Open Loop Flyback Inverter Using Sinusoidal Pulse Width Modulation Technique for Performance Improvement

Nowadays, flyback inverter has gained popularity because of its advantages like simplicity, low cost, and high efficiency. Therefore; it is necessary to improve the performance of the flyback inverter by applying innovative techniques. The proposed research work presents the implementation of Perturb and Observe method of maximum power point tracking algorithm to flyback inverter for improving the output parameter by lowering the total harmonic distortion value. The sinusoidal pulse width modulation technique generates firing pulses for MOSFETS of the inverter. The output ac voltage and current of the flyback inverter are sinusoidal. The observed total harmonic distortion value is 2.76 which is less than 3 and acceptable as per IEEE 519 standard. The obtained value is lesser than the systems which do not use sinusoidal pulse width modulation and maximum power point tracking algorithms. The complete model has been built and tested in Simulink/MATLAB.