An Effective Control Technique for an Impedance Source Inverter Based Wind Energy System

In this paper the effectiveness of the Control Strategies for the Impedence Source Inverter based Wind Energy Conversion System are compared. The wind energy system uses a Self Excited Induction Generator (SEIG) which is the most emerging application in the field of Wind Energy Conversion System (WECS). The proposed system is modeled with a generator-side Diode Bridge Rectifier and a Stand-Alone side ZSI. The control strategies used for the Impedance Source Inverter are Sinusoidal Pulse Width Modulation (SPWM) and Space Vector Pulse Width Modulation (SVWM) as two cases for the comparison of the Total Harmonic Distortion (THD). The comparison of both control strategy shows the efficiency of the output in terms of reduced current harmonics and the current harmonic content observed to be less in using SVPWM compared to SPWM. The results are generated in MATLABSIMULINK and are shown.