Asef, P.; Bargallo, R.; Lapthorn, A. Iron Loss Prediction Using Modified IEM-Formula during the Field Weakening for Permanent Magnet Synchronous Machines. Machines2017, 5, 30.
Asef, P.; Bargallo, R.; Lapthorn, A. Iron Loss Prediction Using Modified IEM-Formula during the Field Weakening for Permanent Magnet Synchronous Machines. Machines 2017, 5, 30.
Asef, P.; Bargallo, R.; Lapthorn, A. Iron Loss Prediction Using Modified IEM-Formula during the Field Weakening for Permanent Magnet Synchronous Machines. Machines2017, 5, 30.
Asef, P.; Bargallo, R.; Lapthorn, A. Iron Loss Prediction Using Modified IEM-Formula during the Field Weakening for Permanent Magnet Synchronous Machines. Machines 2017, 5, 30.
Abstract
During flux weakening operation time (FWOT), the total iron loss rises and affects the accuracy of loss prediction and efficiency especially if a large range of FWOT exists. Iron loss prediction is widely employed in investigations for a fast electrical machine analysis using 2-D FEA. This paper studies harmonic loss analytically by a steady-state equivalent circuit. Consideration of skin effects and iron saturation are utilized in order to examine the accuracy through the relative error distribution in the frequency domain of each model from 50 to 700 Hz. Additionally, this comparative study presents a torque-frequency-flux density calculation over each single term of the modified IEM-formula. The analytical calculation is performed using 2-D FEA for a classic and modified IEM-formula along with experimental verifications on a surface-mounted PMSG for a wind generation application.
Keywords
electrical machine; field weakening; IEM-formula; wind energy; iron loss; synchronous generator; equivalent circuit; harmonic loss
Subject
Engineering, Electrical and Electronic Engineering
Copyright:
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