A zero-voltage transition (ZVT) soft-switching inverter for an induction motor drive is developed. The proposed soft-switchng inverter is formed from the traditional pulse-wi dth modulated (PWM) inverter by simply augmenting with auxiliary resonant circuits, and the soft switching is acheved through applying PWM switching control signals with suitable delays for the main and auxiliary switches....

A modified pulse width modulation technique for Z-source inverter based BLDC motor is proposed and analyzed in this project.The Z-source inverter can be used as Buck/Boost converter with lower cost and high efficiency. BLDC motors are used in electric vehicles where portability and efficiency are required. This drive system provides advantages of both BLDC motors and Z-source inverter, and can ...

The objective of this paper is to present a multilevel inverter topology for induction motor with open-end winding. Multi level inversion is achieved by feeding an open-end winding induction motor with a two-level inverter in cascade with three auxiliary circuits from one end and a single two-level inverter from the other end of the motor. The combined inverter and auxiliary system with open-en...

This paper presents the development of a resonant DC link inverter for an electric vehicle application. The resonant link frequency is approximately 70kHz and the inverter drives a low voltage 2.2kW AC induction motor. The IGBT inverter operates off a 240V DC supply and an active clamping circuit limits the resonant bus voltage to 500V. A synchronized PWM scheme is used to modulate the resonant...

Received Jan 3, 2017 Revised Mar 3, 2017 Accepted Mar 17, 2017 In this paper a novel 5 switch seven level DC-AC inverter is being proposed. The proposed multilevel inverter uses reduced number of switches as compared to the switches used in the conventional multilevel inverter. The inverter has been designed to generate a 7 level AC output using 5 switches. The voltage stress on each of the swi...

-------------------------------------------------------------------ABSTRACT---------------------------------------------------------------------In this paper, an asymmetrical pulse-width-modulated (APWM) resonant inverter topology is presented for high frequency ac power distribution systems. The inverter system is comprised of simple power and control circuitry. The detailed analysis shows tha...

To fulfill the challenging demands of the growing grid, new concepts of the inverters are needed. In this project a reduced switch modular inverter design is detailed. A reduced switch modular inverter design is presented for a modern power system which inputs power from both AC and DC Renewable Sources. The modular inverter is the combination of both three phase inverter and three phase invert...

Multilevel inverters offer several advantages compared to the conventional 3-phase bridge inverter in terms of lower dv/dt stresses, lower electromagnetic compatibility, smaller rating and better output features. This project presents a 9-level diode Clamped inverter using Sinusoidal pulse width Modulation techniques as the control strategies. The algorithm has been developed within the carrier...

Multilevel cascaded and hybrid inverter systems conventionally use three level bipolar PWM for each individual inverter, with their carriers phase shifted to achieve maximum harmonic cancellation within each phase leg. This has been shown to give a harmonic performance equivalent to APOD modulation of a NPC multilevel inverter, when the switching frequencies are scaled to achieve the same numbe...

The standard solution for the traction system in battery powered electric vehicles (EVs) is a two-level (2L) inverter feeding a three-phase motor. A simple and effective way to achieve a three-level (3L) inverter in battery-supplied electric vehicles consists of using two standard three-phase 2L inverters with the open-end winding connection of standard three-phase ac motors. The 3L inverter so...