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2022•2022 IEEE 3rd China International Youth Conference on Electrical Engineering (CIYCEE)Requires access

Analysis of Consequent Pole Vernier PM Machine Based on Advanced MMF-Permeance Model

Fang Li, Dawei Li, Yuanzhi Zhang

Open publisher page 3 citations

Abstract

Consequent-pole (CP) vernier permanent magnetic machine (VPMM) has attracted increasing interest owing to higher torque output and less PM usage compared to the surface-mounted VPM (SVPMM). Via the simplified equivalent magneto-motive force (MMF)-dual salient permeance model, the deviated no-load air-gap flux density from FEA result is observed, which means the theoretical basis of CPVPMM has not been well established due to the unconventional consequent-pole PM structure. In this paper, an advanced MMF-permeance model is proposed which could accurately predict the air-gap flux density under different structure parameters of CPVPMM. Based on the proposed analytical method, the accurate sizing equation of CPVPMM could be established which would give helpful guidance in analyzing and designing the high-torque-density CPVPMM.

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What this paper is about

Consequent-pole (CP) vernier permanent magnetic machine (VPMM) has attracted increasing interest owing to higher torque output and less PM usage compared to the surface-mounted VPM (SVPMM). Via the simplified equivalent magneto-motive force (MMF)-dual salient permeance model, the deviated no-load air-gap flux density from FEA result is observed, which means the theoretical basis of CPVPMM has not been well established due to the unconventional consequent-pole PM structure. In this paper, an advanced MMF-permeance model is proposed which could accurately predict the air-gap flux density under different structure parameters of CPVPMM. Based on the proposed analytical method, the accurate sizing equation of CPVPMM could be established which would give helpful guidance in analyzing and designing the high-torque-density CPVPMM.

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Available abstract

Consequent-pole (CP) vernier permanent magnetic machine (VPMM) has attracted increasing interest owing to higher torque output and less PM usage compared to the surface-mounted VPM (SVPMM). Via the simplified equivalent magneto-motive force (MMF)-dual salient permeance model, the deviated no-load air-gap flux density from FEA result is observed, which means the theoretical basis of CPVPMM has not been well established due to the unconventional consequent-pole PM structure. In this paper, an advanced MMF-permeance model is proposed which could accurately predict the air-gap flux density under different structure parameters of CPVPMM. Based on the proposed analytical method, the accurate sizing equation of CPVPMM could be established which would give helpful guidance in analyzing and designing the high-torque-density CPVPMM.

Key concepts: Permeance, Vernier scale, Torque, Magnet, Air gap (plumbing), Finite element method, Sizing, Control theory (sociology)

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