Induction motors are popularly used in various applications because of the proposed modest construction, substantiated process, and limited size specific power. The traditional AC traction drives experimentally analyzed. There is a high circulating current due to Common-Mode Voltage (CMV). Circulating Bearing Current (CBC) major problem conventional two-level voltage source inverter fed paralle...

A Unified Power Quality Conditioner (UPQC) is designed using a Neutral Point Clamped (NPC) multilevel inverter to improve the power quality. When designed for high/medium voltage and power applications, the voltage stress across the switches and harmonic content in the output voltage are increased. A 3-phase 4-wire NPC inverter system is developed as Power Quality Conditioner using an effectual...

In this work, the general structure of a hybrid NPP/NPC seven-level inverter is derived from dual-T-type inverter. Compared with original structure, more flexible as there are four specific circuit configurations to meet different applications. addition self-balanced capacitor voltages and boost capability, various commercial NPP NPC modules can be used speed up design process. Circuit descript...

Electric Vehicles (EVs) are an effective solution for reducing greenhouse gas emissions to the atmosphere. Safety is the most crucial issue in the automotive industry and any fault in the EV drivetrain may results in a fatal accident. This paper discusses the dynamic performance of EVs under drivetrain Voltage Source Inverter (VSI) switch faults and presents the suitable Fault Diagnosis Algorit...

Direct Torque Control of Permanent Magnet Synchronous Motors With Non-Sinusoidal Back-EMF. (May 2008) Salih Baris Ozturk, B.S., Istanbul Technical University, Istanbul, Turkey; M.S., Texas A&M University, College Station Chair of Advisory Committee: Dr. Hamid A. Toliyat This work presents the direct torque control (DTC) techniques, implemented in fourand six-switch inverter, for brushless dc (B...

Research in several new topologies of Multilevel inverter(MLI) has been carried out rapidly day by day. Recently several topologies have been introduced achieving higher levels with reduced device couns and DC sources .In this paper a new hybrid symmetric MLI is proposed .This topology has reduced number of controlled switches, Dc sources and numbers of capacitors which are very less compared t...

Various types of new structures in multilevel inverters are evolving day by day. One among those is the reduced switch count type inverters. This inverter consists low number switches, gate driver components, and other switches like auxiliary switches. Depending on value voltage sources we have symmetrical asymmetrical In this paper, seven level design shown for levels its output. The output wa...

This article discloses part of an invention on plug-and-play converter-level on-state voltage measurement methods for power semiconductor devices. To exclude the external supply required in circuits, a self-power solution is proposed to provide bidirectional low-voltage sources. The application circuit with demonstrated single-switch, single-phase inverter, and three-phase inverter.