Parametric Analysis for Performance Optimization of Line-Start Synchronous Motor with Interior Asymmetric Permanent Magnet Array Rotor Topology

Sarac, Vasilija (2022) Parametric Analysis for Performance Optimization of Line-Start Synchronous Motor with Interior Asymmetric Permanent Magnet Array Rotor Topology. Electronics, 11 (4). pp. 1-22. ISSN 2079-9292

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Abstract

Line-start synchronous motors have attracted researchers’ interest as suitable replacements of asynchronous motors due to their high efficiency, which has been provoked by strict regulations regarding applicable efficiency classes of motors in the EU market. The research becomes even more
challenging as it takes into consideration the diverse rotor topologies with different magnet locations for this type of motor. The rotor configuration with an interior asymmetric permanent magnet (PM) array rotor was chosen for analysis and optimization in this paper as this specific configuration is particularly challenging in terms of placing the magnets with adequate dimensions into the
existing rotor of the asynchronous motor with a squirrel cage winding, in order simultaneously to obtain good operational characteristics such as high efficiency and power factor, good overloading capability and low material consumption. Therefore, an optometric analysis is performed in order to find the best configuration of the air gap length, magnet thickness, magnet width and number of
conductors per slot, along with modifications of the rotor slot. The motor outer dimensions remained unchanged compared with the starting model of the line-start motor derived from the asynchronous motor, which is a product of the company Koncar. The optimized model obtained higher efficiency,
power factor and overloading capability than the starting model, along with good starting and synchronization capabilities.

Item Type:	Article
Impact Factor Value:	2.397
Subjects:	Engineering and Technology > Electrical engineering, electronic engineering, information engineering
Divisions:	Faculty of Electrical Engineering
Depositing User:	Vasilija Sarac
Date Deposited:	19 Feb 2022 10:14
Last Modified:	19 Feb 2022 10:14
URI:	https://eprints.ugd.edu.mk/id/eprint/29510

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