New energy saving multizone alternating-voltage soft starters of induction machines

Widespread thyristor devices used to soft start of alternating voltage motors reduce the starting current by a factor of 2 or 3, but greatly deform its profile and produce an additional reactive component of the current. As a result, the input coefficient of the starting device power decreases and t...

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Bibliographic Details
Published in2011 International Conference and Seminar on Micro/Nanotechnologies and Electron Devices Proceedings pp. 415 - 419
Main Author Udovichenko, A. V.
Format Conference Proceeding
LanguageEnglish
Published IEEE 01.06.2011
Subjects
asynchronous motors
Capacitors
Harmonic analysis
Induction motors
new circuit of multizonal regulators
phase or pulse-width regulation
Regulators
Soft start
Synchronous motors
Thyristors
Voltage control
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Summary:Widespread thyristor devices used to soft start of alternating voltage motors reduce the starting current by a factor of 2 or 3, but greatly deform its profile and produce an additional reactive component of the current. As a result, the input coefficient of the starting device power decreases and the losses of the motor active power increase. Non-standard approaches to build-up of arrangements of a smooth start of the induction and synchronous motors are considered, allowing to improve quality of starting current of the motor and to reduce or even to come to naught additional consumption of reactive power of a network. Use of rates on thyristor voltage besides, improves. This method is based on the symbiosis of the concepts of the discrete amplitude and the continuous phase or pulse-width regulation. External, energy characteristics and regulation curve of regulators are calculated.
ISBN:1612847935
9781612847931
ISSN:1815-3712
DOI:10.1109/EDM.2011.6006985