Query: Evaluation of switching performance ofSiC devices inPWM inverter-fed induction motor drives

Candidate papers:

abstract: Double pulse test (DPT) is a widely accepted method to evaluate the switching characteristics of semiconductor switches, including SiC devices. However, the observed switching performance of SiC devices in a PWM inverter for induction motor drives (IMD) is almost always worse than the DPT characterization, with slower switching speed, more switching losses, and more serious parasitic ringing. This paper systematically investigates the factors that limit the SiC switching performance from both the motor side and inverter side, including the load characteristics of induction motor/power cable, two more phase legs for the three phase PWM inverter as compared to the DPT, and the parasitic capacitive coupling effect between power devices and heat sink. Based on the three phase PWM inverter with 1200 V SiC MOSFETs, the test results show that the induction motor, especially with a relatively long power cable, will significantly impact the switching performance, leading to switching time increase by a factor of 2, switching loss increase up to 30% and serious parasitic ringing with 1.5 ms duration as compared to that tested by DPT. In addition, the interactions among the three phase legs cannot be ignored unless the decoupling capacitors are mounted close to each phase leg to support the dc bus voltage during switching transients. Also, the coupling capacitance induced by the heat sink equivalently increases the junction capacitance of power devices. However, its influence on the switching behavior in the motor drives is small considering the relatively large capacitance of the motor load.
author_names: Zheyu Zhang

Fred Wang

Leon M Tolbert

Benjamin J Blalock

Daniel J Costinett
title: Evaluation of switching performance of SiC devices in PWM inverter fed induction motor drives
venue: 2014 IEEE Energy Conversion Congress and Exposition (ECCE)
year: 2014

author_names: Zheyu Zhang

Fred Wang

Leon M Tolbert

Benjamin J Blalock

Daniel J Costinett
title: Evaluation of switching performance of SiC devices in PWM inverter fed induction motor drives
year: 2014

abstract: The dual inverter fed Open End Winding Induction Motor drive offers interesting possibilities for multilevel inversion. It needs two isolated power supplies to feed individual inverters to avoid the flow of zero sequence current. Three Space Vector PWM schemes have been reported in the earlier literature, which facilitate the operation of the dual inverter drive with a single power supply. This paper critically compares the performance of these three Space Vector PWM techniques for a dual inverter fed Open End Winding Induction Motor drive, which requires only one DC power supply. The criteria of comparison are: (i) the Total Harmonic Distortion (THD) in the voltage waveform (ii) the Total Harmonic Distortion (THD) in the phase current waveform (iii) RMS value of the stator flux ripple and (iv) switching and conduction losses of the switching devices. The relative merits and demerits of each SVPWM technique in these four aspects are presented. The performance of dual inverter fed OEWIM drive with two isolated DC power supplies in these four aspects is used as a benchmark for comparison.
author_names: Reddy Srinivas Rao

B Naga Chaitanya

N Saichand

Veeramraju Tirumala Somasekhar
title: Comparative evaluation of SVPWM strategies for a dual inverter fed open end winding induction motor drive with a single DC power supply
venue: IECON 2014 40th Annual Conference of the IEEE Industrial Electronics Society
year: 2014

abstract: The development of advantageous power electronic switching devices such as insulated gate bipolar transistors (IGBTs) has made it possible for the inverter to realize high frequency switching operation and the effective performance of pulse width modulated (PWM) inverters for driving induction motors. On the other side, the high dv/dt of IGBT PWM inverters appears across the first few turns of winding, which may result in premature motor failures. Thus, the techniques to improve insulation characteristics are required to withstand the damaging pulses from the PWM drives. In this paper, the detailed insulation test results of 19 low voltage induction motors are presented. Five different types of insulation techniques are applied to 19 motors. The insulation characteristics are analyzed by performing partial discharge, discharge inception voltage, dissipation factor, and breakdown tests by high voltage pulses are performed.
author_names: Don-Ha Hwang Don-Ha Hwang

Jeong-Woo Jeon Jeong-Woo Jeon

Yong-Joo Kim Yong-Joo Kim

Sung-Woo Bae Sung-Woo Bae

Dong-Hee Kim Dong-Hee Kim

Min-Huei Kim Min-Huei Kim

In-Woo Lee In-Woo Lee
title: Evaluation of insulation systems for IGBT PWM inverter fed low voltage induction motors
venue: Industrial Electronics, 2002. ISIE 2002. Proceedings of the 2002 IEEE International Symposium on
year: 2002

abstract: In recent years, multilevel inverters have gained much attention in the application areas of medium voltage and high power owing to their various advantages such as lower common mode voltage, lower voltage stress on power switches, lower dv/dt ratio to supply lower harmonic contents in output voltage and current. This paper presents the simulation and implementation of multilevel inverter fed induction motor drive. The output harmonic content is reduced by using multilevel inverter. The proposed seven,twenty three,twenty seven and thirty three level cascaded Hbridge multilevel inverters require less number of components to obtain same number of voltage levels when compared to diode clamped and flying capacitor type methods. Due to that, the switching loss gets reduced as same like the harmonic distortion occurs in the motor drive gets reduced. Also, it generally regularizes the stair case voltage waveform from several dc sources which has reduced harmonic content. The operational principle and key waveforms are analyzed and the performance of the proposed multilevel inverter is evaluated from the simulation results. The results has been compared to that of the existing techniques and found to be quite better than the existing ones.
author_names: B N Lakshmi Pravallika

Appa Rao

Sk Mohiddin
title: Reduction Of Power Electronic Devices In Multilevel Inverter For Higher Voltage Level Fed With Induction Motor Drive
year: 2016

abstract: In this paper, a hybrid twenty five level inverter topology for an OEWIM (Open End Winding Induction Motor) drive is proposed. In this topology, one end of OEWIM is fed by a FC based hybrid five level inverter and other end is connected to a symmetrical five level inverter. The hybrid five level inverter is achieved by cascading a three level flying capacitor inverter with capacitor fed H bridge. The symmetrical five level inverter is obtained by cascade connection of four 2 level inverters with equal DC link voltages. The combined effect of five level hybrid and five level symmetrical inverters generate twenty five distinct levels in the phase voltage. In this proposed topology, a total of 3,43,000 space phasor combinations are accessible; hence using switching redundancies, the capacitor voltages can be maintained at desired levels. The proposed topology requires only 48 switching devices, as compared to conventional topologies that require 144 switches and fully eliminates the requirement of clamping diodes, which are required in NPC inverter. It, also, requires only 6 capacitors unlike to 828 capacitors required in twenty five level FC inverter and 5 DC power supply sources as compared to twenty five level CHB inverter that require 36 DC power supply sources. Simulation study is carried out to evaluate the performance of the proposed inverter and results are presented.
author_names: Anoop Kumar Kanaujia

Sanjiv Kumar
title: A Hybrid Twenty Five level Inverter for an Open End Winding Induction Motor (OEWIM) Drive
venue: 2018 2nd IEEE International Conference on Power Electronics, Intelligent Control and Energy Systems (ICPEICES)
year: 2018

abstract: Multilevel inverters are gaining popularity in high power applications. This paper proposes a new ladder type structure of cascaded three phase multilevel inverter with reduced number of power semiconductor devices which is used to drive the induction motor. The ultimate aim of the paper is to produce multiple output levels with minimum number of semiconductor devices. This paper uses only 11 switches along with 3 diodes and 4 asymmetrical sources to produce an output voltage of 21 levels. The modulation technique plays a major role in commutation of the switches. Here we implement the multicarrier level shifting pulse width modulation technique to produce the commutation signals for the inverter. The proposed multilevel inverter is used to drive the three phase induction motor. The mathematical modeling of three phase induction motor is done using Simulink. Furthermore the PI and fuzzy logic controllers are also used to produce the reference waveform of the level shifting technique which in turn produces the commutation signals of the proposed multilevel converter. The controllers are used to control the speed of the induction motor. The effectiveness of the proposed system is proved with the help of simulation. The simulation is performed in MATLAB/Simulink. From the simulation results, it shows that the proposed multilevel inverter works properly to generate the multilevel output waveform with minimum number of semiconductor devices. The PI and fuzzy logic controller performances are evaluated using the results which indicate that with the help of controllers the harmonics has been reduced and the speed control of induction motor is achieved under different loading conditions.
author_names: A Abdul Namith

T S Sivakumaran
title: A Novel Asymmetric Three Phase Cascaded 21 Level Inverter Fed Induction Motor Using Multicarrier PWM with PI and Fuzzy Controller
year: 2016

abstract: At present nine level PWM inverters are introduced in industrial drives, for interconnecting the renewable energy sources into the grid supply and traction motor drives, where the high and medium voltage levels. This paper presents an attempt made to evaluate the performance of 9 level cascaded inverter supplying power to a 1 O induction motor using computer simulation. Mathematical modeling of the system derived using equivalent circuit and the device operations. MATLABI Simulink based performance study completed. A novel technique used for modulation process to generates the pulses. These are applying to the gate circuit of the solid state switches are used to configure the nine level inverter. Simulation study completed using ODE 23 solver and results are presented.
author_names: K Subramanian

M Saraswathi

P Poovarasan

M P Uthra
title: Simulation study of nine level inverter fed 1 O induction motor drive
venue: 2013 International Conference on Renewable Energy and Sustainable Energy (ICRESE)
year: 2013

abstract: 3 Abstract: Random pulse width modulation (RPWM) in industrial drives is triumph in transferring of harmonic power from the detached spectrum of the output voltage to the unremitting spectrum and offers the merits viz. the operation free from an unpleasant acoustic noise and a mechanical vibration. The prime objective of this paper is providing a comprehensive investigation of performance of random pulse position pulse width modulation (RPPPWM) in a three phase voltage source inverter (VSI) fed induction motor drive through simulation and laboratory testing. RPPWM scheme randomly varies the pulse position in every switching cycle, where the idea is inducing the random characteristics in the PWM pulses at fixed switching frequency. The competence in spreading the harmonic power of sinusoidal PWM (SPWM) random carrier PWM (RCPWM) and the RPPWM are compared using simulation. The results are corroborated through the prototype VSI designed. The developed RPPPWM based on a SPARTAN 6 FPGA (XC6SLX45) device, disperses the acoustic switching noise spectra of an induction motor drive.
author_names: T Jarin

P Subburaj
title: Performance Evaluation and Experimental Validation of Random Pulse Position Pwm for Industrial Drives
year: 2015

abstract: In industrial drives, random pulse width modulation (RPWM) is triumph for transferring of harmonic power from the detached spectrum of the output voltage to the unremitting spectrum, and offers the merits viz. The operation is free from an unpleasant acoustic noise and a mechanical vibration. The main objective of this paper is providing a comprehensive investigation of performance of random pulse position pulse width modulation (RPPPWM) for a three phase voltage source inverter (VSI) fed induction motor drives. RPPWM scheme randomly varies the pulse position in every switching cycle, where the idea is inducing the random characteristics in the PWM pulses at fixed switching frequency. The competence in spreading the harmonic power of sinusoidal PWM (SPWM) random carrier PWM (RCPWM) and the RPPWM are compared using simulation. The results are corroborated through the prototype VSI designed. The developed RPPPWM based on a SPARTAN 6 FPGA (XC6SLX45) device, disperses the acoustic switching noise spectra of an induction motor drive Full Text: PDF
author_names: P V Arulkumar

N P Subramaniam
title: Experimental Evaluation and Validation of Random Pulse Position Pulse Width Modulation for Industrial Drives
year: 2015