NDLI: Efficiency comparison between motor friendly hard and soft switching inverters

Content Provider	IEEE Xplore Digital Library
Author	Kedarisetti, J. Mutschler, P.
Copyright Year	2011
Description	Author affiliation: Department of Power Electronics and Control of Drives, Technische Universität Darmstadt, Landgraf-Georg-Str.4, 64283 Darmstadt, Germany (Kedarisetti, J.; Mutschler, P.)
Abstract	This paper compares two motor-friendly inverters. One is quasi resonant DC-link soft switching inverter and the other one is hard switching inverter together with a filter. The soft switching inverter is designed for reduced dv/dt. With the use of an additional switch, peak common mode voltage is also reduced. In order to evaluate the motor-friendly characteristic of a soft switching inverter, the experimental results regarding the line to line voltage, line to earth voltage and common mode voltage effects on motor fed with long cable are presented. Furthermore, important comparisons with hard switching operation of the same inverter (resonant circuit not operated) with commercially available filters connected at inverter output, regarding the effects and efficiency are presented. Conclusions are then drawn that motor-friendly SS inverter is an alternative to HS inverter with a sine-wave EMC output filter. The motor-friendly soft switching inverter does not need an output filter. So it has good dynamics compare to a hard switching inverter with a sine-wave EMC output filter.
Starting Page	1
Ending Page	10
File Size	211469
Page Count	10
File Format	PDF
ISBN	9781612841670
e-ISBN	9789075815146
e-ISBN	9789075815153
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2011-08-30
Publisher Place	United Kingdom
Access Restriction	Subscribed
Rights Holder	EPE ASSOCIATION
Subject Keyword	efficiency RLC circuits Switches zero voltage switching hard switching (HS) inverter Electromagnetic compatibility Inverters soft switching (SS) inverter Power harmonic filters Oscillators common mode voltage Switching circuits voltage gradient Quasi resonant DC-link inverter
Content Type	Text
Resource Type	Article

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