Drive systems with induction motors powered by frequency converters have found applications in industry, traction, and households, thanks to their undeniable advantages. Currently, many research centers are working on ways to limit the negative phenomena occurring when powered by a frequency converter. The presented article introduces methods leading to this goal. The greatest benefits of using multiphase motors are: – reduction of higher harmonics, – increase in driving torque, – increase in the speed control range.Drive systems are facing increasingly higher requirements regarding, among other things: operational reliability, high efficiency, the shape of the mechanical characteristic, and suitability for power supply from a frequency converter.
Previous research indicates that many of these requirements can be met by multiphase motors.
2. COMPARISON OF THE PROPERTIES OF MULTIPHASE MOTORS WITH THREE-PHASE MOTORS
In the literature, there are examples of the analysis of the properties of multiphase motors [2,3,4,7]. Possible configurations of multiphase motors are given in tables 1 and 2.
Tab.1. (…)
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Source: Logistyka Magazine
Induction motor, multiphase, drives, properties. – PDF file for download