Performance evaluation of stand alone WECS three phase diode clamped inverter based on level shifted carriers PWM techniques

Wind energy conversion systems (WECS) are one of the fastest growing renewable energy technologies throughout world. Part of that expansion is taking a place in the power electronic converters used in different models of WECS. This paper will focus on multilevel inverters which are the most critical power electronic converters in wind energy systems, high and mixed switching frequency techniques were practically applied on a three phase five level diode clamped inverter and the outcome results were close to the simulation results using MATLAB Simulink model. A comparison between different modulation techniques based on the total harmonic distortion (THD) in the output voltage. Additionally, resistive and inductive loading tests were performed in order to evaluate the inverter response under different circumstances.