Indonesian Journal of Electrical Engineering and Computer Science Vol. 9, No. 2, February 2018, pp. 257~261 ISSN: 2502-4752, DOI: 10.11591/ijeecs.v9.i2.pp257-261  257 Journal homepage: http://iaescore.com/journals/index.php/ijeecs Dual Input Z-Source Inverter Fed PMSM Based Renewable Energy V. Karthikeyan Department of Electrical and Electronics Engineering (Marine), AMET University, Chennai Article Info ABSTRACT Article history: Received Oct 19, 2017 Revised Dec 25, 2017 Accepted Jan 18, 2018 The proposed paper produces the high gain and low harmonic content in the permanent magnet synchronous motor fed Z-source inverter. The hybrid solar and fuel-based motor produces more power by using the direct torque control. The control based PMSM fed inverter for continuous power production. The dc bus voltage is regulated by using the DTC based PMSM. The speed of a permanent magnet synchronous motor is regulated, and the proposed DTC is minimizing the torque and flux ripple. In order to produce maximum power at the dc link and also improve the performance of PMSM in Matlab/ Simulink software. Keywords: Direct Torque Control (DTC) Permanent Magnet Synchronous Motor (PMSM) Photovoltaic (PV) Z Source Inverter (ZSI) Copyright © 2018 Institute of Advanced Engineering and Science. All rights reserved. Corresponding Author: V. Karthikeyan, Department of Electrical and Electronics Engineering (Marine), AMET University, Chennai. 1. INTRODUCTION The permanent magnet synchronous motor is used in many application, torque response and high performance operation. Simple DTC algorithm with predetermined switching frequency for PMSM based on SPWM method is planned to diminish the flux and torque wave and lessen the calculation time and requirement of a powerful sufficient to bring out the real-time algorithm [1]-[4]. 2. BACKGROUND An impedance system offers a competent means of power transfer between source and load in a broad range of electric-power conversion applications (dc-dc, dc-ac, ac-dc, ac-ac), particularly for alternating sources like fuel cells, photovoltaic, and also wind turbines [5]-[7]. The problem of improving the behavior of a direct torque controlled induction machine and also of PMSM, especially by reducing the torque and flux ripples and by imposing the average switching frequency of the Voltage-Source Inverter (VSI). Z-Source inverter becomes a popular choice for boosting up the voltage generated by the renewable sources for different applications [8]-[10]. Although the conventional ZSI provides infinite increasing theoretically but practically it is limited. Further for more boosting factor, shoot- through duty ratio provided to ZSI has to be high. But the modulation index decreases and the voltage stress across the switch increases with high shoot-through [11]. The advanced solar and fuel based Z-source inverter for high power and also reduce the harmonics. The direct torque control of PMSM is designed for improving the performance of the motor and to reduce the torque ripple [12]. The input of ZSI has from the solar and fuel, and the supply of renewable energy are connected to the Z-source converter by using the switch. The inverter is connected to the motor for high speed and high efficiency of the system [13].