NDLI: Semiconductor power losses in AC inverters

Content Provider	IEEE Xplore Digital Library
Author	Berringer, K. Marvin, J. Perruchoud, P.
Copyright Year	1995
Description	Author affiliation: Semicond. Products Sector, Motorola Inc., Phoenix, AZ, USA (Berringer, K.; Marvin, J.; Perruchoud, P.)
Abstract	The AC induction motor is the workhorse of modern industry. Worldwide about 50 million motors are installed every year which are greater than 1/2 hp. Three-phase induction motors are very simple and inexpensive to build. An AC motor may be used for variable speed applications with the addition of an AC inverter. An accurate model of semiconductor power losses is necessary to design a reliable invertor system using a minimum amount of silicon. Equations for the average and RMS transistor and diode currents are derived based on a quantitative analysis of the current waveforms. Conduction losses in the semiconductor devices are then approximated using a piecewise linear approximation of the device's on-voltage characteristics. Measurements of switching energy versus current are used to obtain a curve of losses versus current. Integration of these losses over a full sine wave period is used to obtain a closed form expression for switching losses as a function of sine wave current. Total losses, conduction losses and switching losses are compared to thermal measurements. The model is further tested by comparing predicted and actual losses at different PWM frequencies.
Starting Page	882
Ending Page	888
File Size	471596
Page Count	7
File Format	PDF
ISBN	0780330080
ISSN	01972618
DOI	10.1109/IAS.1995.530391
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	1995-10-08
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Pulse width modulation inverters Induction motors AC motors Piecewise linear approximation Semiconductor device reliability Switching loss Pulse width modulation Loss measurement Power system reliability Power system modeling
Content Type	Text
Resource Type	Article
Subject	Industrial and Manufacturing Engineering Control and Systems Engineering Electrical and Electronic Engineering

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Effects of low switching frequency on synchronous AC drives

Influence of the inverter characteristics on the iron losses in PWM inverter-fed induction motors

Impact of PWM Schemes on Induction Motor Losses

Switching loss analysis of modulation methods used in neutral point clamped converters

Influence of the inverter characteristics on the iron losses in PWM inverter fed induction motors

CSI drive induction motor by vector approximation

Predicting Inverter-Induced Harmonic Loss by Improved Harmonic Injection

Analysis of the impact of pulse-width modulated inverter voltage waveforms on AC induction motors

Fast Method for the Iron Loss Prediction in Inverter-Fed Induction Motors

Semiconductor power losses in AC inverters

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