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<p>Claw pole permanent magnet generator (CPPMG), characterized by high power density and reliability, is promising for wind power generation applications. However, the traditional CPPMG is usually with magnetic saturation in the waist of the claw pole arm and claw pole tooth, limiting the enhancement of the generator’s electromagnetic performance. In this paper, two shape optimization methods are proposed to improve the performance of CPPMG. To improve the optimization speed, the multilevel optimization strategy is used, specifically sensitivity analysis, response surface models, and genetic algorithms employed. The calculation results show that, compared to the traditional design, the two shape optimization methods effectively alleviate magnetic saturation in the claw pole arm and claw pole tooth. Meanwhile, they reduce cogging torque and no-load back electromotive force harmonic distortion rate. Additionally, the load performance is improved, specifically, the rated electromagnetic power of the generator is increased by 6.0% and 7.3%, and the efficiency is enhanced by 1.3% and 1.7%, respectively.</p>

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Shape Optimization Design of Claw Pole Permanent Magnet Wind Generator with Hybrid Core

  • 期刊论文

  • 发表日期：

    2025年4月3日

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

摘要

Claw pole permanent magnet generator (CPPMG), characterized by high power density and reliability, is promising for wind power generation applications. However, the traditional CPPMG is usually with magnetic saturation in the waist of the claw pole arm and claw pole tooth, limiting the enhancement of the generator’s electromagnetic performance. In this paper, two shape optimization methods are proposed to improve the performance of CPPMG. To improve the optimization speed, the multilevel optimization strategy is used, specifically sensitivity analysis, response surface models, and genetic algorithms employed. The calculation results show that, compared to the traditional design, the two shape optimization methods effectively alleviate magnetic saturation in the claw pole arm and claw pole tooth. Meanwhile, they reduce cogging torque and no-load back electromotive force harmonic distortion rate. Additionally, the load performance is improved, specifically, the rated electromagnetic power of the generator is increased by 6.0% and 7.3%, and the efficiency is enhanced by 1.3% and 1.7%, respectively.