NDLI: Computationally efficient hybrid PM loss prediction method for surface-mounted permanent magnet machine over entire working conditions

Content Provider	IET Digital Library
Author	Sheng, Zhiyu Wang, Dong
Abstract	This study proposes a computationally efficient hybrid approach to calculating permanent magnet (PM) loss in surface-mounted PM machine (SPMM) over the whole working points. By analysing the impact of current amplitude, current angle, rotor speed, and PM temperature on the corresponding subdomain PM loss results, a simplified model that considers harmonic current and explicitly expresses the relationship between PM loss and working point variables is derived. Unlike the corresponding subdomain method, the proposed model does not involve a Fourier expansion or summation over a large number of terms, which simplifies the calculation and makes the PM loss under any operating condition can be acquired instantly. Thus, the needs for PM loss table and massive experiments or calculations are eliminated. The accuracy of this hybrid approach is validated against the finite element method results of a six-phase SPMM over a wide range of working conditions. However, the cross-verification studies demonstrate that the proposed method has good efficiency and high precision, making it a promising tool for online PM loss prediction.
Starting Page	2462
Ending Page	2470
Page Count	9
ISSN	17518660
Volume Number	14
e-ISSN	17518679
Issue Number	Issue 12, Dec (2020)
Alternate Webpage(s)	https://digital-library.theiet.org/content/journals/iet-epa/14/12
Alternate Webpage(s)	https://digital-library.theiet.org/content/journals/10.1049/iet-epa.2020.0501
Journal	IET Electric Power Applications
Publisher Date	2020-09-14
Access Restriction	Open
Rights Holder	© The Institution of Engineering and Technology
Subject Keyword	A.C. Machine Cross-verification Studies Current Amplitude Current Angle D.C. Machines Efficient Hybrid PM Loss Prediction Method Finite Element Analysis Finite Element Method Result Harmonic Analysis Online PM Loss Prediction Permanent Magnet Loss Permanent Magnet Machine Rotor Speed Rotors Six-phase SPMM Subdomain Method Surface-mounted Permanent Magnet Machine Surface-mounted PM Machine Working Point Working Point Variables
Content Type	Text
Resource Type	Article
Subject	Electrical and Electronic Engineering

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