Comparative analysis of a spoke ferrite permanent magnets vernier synchronous generator

Kolzer, José Fabio; Bazzo, Thiago de Paula Machado; Carlson, R.; Würtz, Fréderic

doi:10.1109/icelmach.2016.7732530

Cited by 4 publications

(1 citation statement)

References 15 publications

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“…Spoke‐type PM with a flux focusing effect can increase the air‐gap magnetic loading to improve the power capability of a PMVM [58]. A spoke ferrite magnet VM has been developed for achieving lower active material cost as well as higher power density than its counterpart – a 3 kW, 350 r/min, NdFeB wind turbine synchronous generator [59]. However, it has also been found that the rotor flux barrier of a spoke‐type PMVM may weaken the modulated magnetic field as well as torque capability, especially for designs with a high pole ratio ( p r / p s ) numbers [52].…”

Section: Winding Flux Modulation Pole and Rotor Designmentioning

confidence: 99%

Permanent magnet vernier machine: a review

El-Refaie

2019

IET Electric Power Applications

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Permanent magnet vernier machines (PMVMs) gained a lot of interest over the past couple of decades. This is mainly due to their high torque density enabled by the magnetic gearing effect. This study will provide a thorough review of recent advances in PMVMs. This review will cover the principle of operation and nature of magnetic gearing in PMVMs, and a better understanding of novel PMVM topologies using different winding configuration as well as different modulation poles and rotor structures. Detailed discussions on the choice of gear ratio, slot-pole combinations, design optimisation and role of advanced materials in PMVMs will be presented. This will provide an update on the current state-of-the art as well as future areas of research. Furthermore, the power factor issue, fault tolerance as well as cost reduction will be discussed highlighting the gap between the current state-of-the art and what is needed in practical applications.

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Section: Winding Flux Modulation Pole and Rotor Designmentioning

confidence: 99%