Calculation of the Characteristics of Salient‐Pole Synchronous Machines Assisted by Permanent Magnets on the Basis of the Operating Principle. Issue 4 (June 2015)

• Record Type: Journal Article
• Authors: Yamazaki, Katsumi; Tamiya, Shuichi; Shima, Kazuo; Fukami, Tadashi
• Is Part Of: Electrical engineering in Japan. Volume 191:Issue 4(2015)
• Page Start: 19
• Page End: 26
• Publication Date: 2015-06
• Subjects: Electrical engineering -- Periodicals; 621.30952
• DOI: 10.1002/eej.22512
• Languages: English
• ISSNs: 0424-7760

Abstract

<abstract abstract-type="main"> <title>SUMMARY</title> <p>In this study we investigate a method for accurately calculating the characteristics of salient‐pole synchronous machines assisted by permanent magnets. First, the operating principle of the machines is investigated by using both finite element analysis and a simple magnetic circuit. Then, a theoretical representation of the assist effect on the permanent magnets is derived based on the magnetic circuit. Finally, the measured and calculated results are compared in order to confirm the validity of the proposed calculation method. We show that the load characteristics of the proposed machine can be accurately estimated from the no‐load and short‐circuit characteristics of the conventional machine without permanent magnets, and the size and magnetization of the inserted permanent magnets.</p> </abstract>