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<p>The ongoing advancements in renewable energy technologies have necessitated the development of more efficient and high-performance wind generators. This paper presents a design optimization and performance comparison of three different permanent magnet synchronous generators for wind generation application, including a radial flux generator with fractional slot concentrated winding configuration, an axial flux generator with a yokeless and segmented armature (YASA) structure, and a transverse flux claw pole generator respectively. All these generators are designed with a rated output power of 5&#xa0;kW, and the hybrid magnetic cores are employed to improve the electromagnetic performance of these generators. For obtaining fair comparison results, all these generators made of hybrid magnetic cores and the traditional single magnetic core are optimized based on the multi-level optimization strategy, specifically sensitivity analysis, response surface models, and genetic algorithms were employed to improve the optimization speed. The comparison results show that the hybrid magnetic cores can improve the power density and efficiency of these generators, as well as the radial flux generator has the advantages of low cogging torque, the axial flux generator has the advantages of high power density and stronger overload capability, the transverse flux claw pole generator has the advantages of high-power density especially when the input current density is lower than the rated current density.</p>

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Comparative Study of Radial, Axial and Transverse Flux Generators with Hybrid Cores for 5 kW Wind Generator

  • 期刊论文

  • 发表日期：

    2025年4月7日

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  • Chengcheng Liu,
  • Gaowei Yang,
  • Youhua Wang,
  • Gang Lei,
  • Jianguo Zhu

摘要

The ongoing advancements in renewable energy technologies have necessitated the development of more efficient and high-performance wind generators. This paper presents a design optimization and performance comparison of three different permanent magnet synchronous generators for wind generation application, including a radial flux generator with fractional slot concentrated winding configuration, an axial flux generator with a yokeless and segmented armature (YASA) structure, and a transverse flux claw pole generator respectively. All these generators are designed with a rated output power of 5 kW, and the hybrid magnetic cores are employed to improve the electromagnetic performance of these generators. For obtaining fair comparison results, all these generators made of hybrid magnetic cores and the traditional single magnetic core are optimized based on the multi-level optimization strategy, specifically sensitivity analysis, response surface models, and genetic algorithms were employed to improve the optimization speed. The comparison results show that the hybrid magnetic cores can improve the power density and efficiency of these generators, as well as the radial flux generator has the advantages of low cogging torque, the axial flux generator has the advantages of high power density and stronger overload capability, the transverse flux claw pole generator has the advantages of high-power density especially when the input current density is lower than the rated current density.