针对电动汽车的混合激发PMSM最大扭矩点跟踪的先进方法
Mahmoud M Elymany1, Nadia A Elsonbaty1, Aymen FLah2,3,4
1Electrical Power and Machines Department, Faculty of Engineering, Zagazig University, Zagazig, 44519, Egypt.
Scientific reports
|March 5, 2025
概括
本研究介绍了电动汽车中混合激发永磁同步电机 (HEPMSM) 的新控制策略. 它通过优化扭矩和使用一种新的单向激发电流方法来提高性能和效率.
科学领域:
- 电气工程 电气工程
- 汽车工程 汽车工程
- 控制系统 控制系统
背景情况:
- 电动汽车 (EV) 需要高效和强大的电机控制策略.
- 混合刺激永磁同步电机 (HEPMSM) 提供了提高性能的潜力,但需要先进的控制.
- 现有的控制方法可能无法完全优化扭矩-转速配置或防止永久磁铁去磁化.
研究的目的:
- 在电动汽车应用中开发HEPMSM的创新控制战略.
- 为了提高电动动力系统的扭矩速度性能,效率和可靠性.
- 解决传统控制方法的局限性,包括永久磁体去磁化和铜损失.
主要方法:
- 结合最大扭矩点跟踪 (MTPT) 和最大扭矩每安培 (MTPA) 进行最佳的扭矩速度跟踪.
- 提出了一种新的单向激发电流方法来取代双向控制.
- 开发了一个详细的数学模型,包括铁芯损失.
- 利用多目标狮子优化器 (MOALO) 算法优化杂交比率 (HR) 和基本速度 (Nb).
主要成果:
- 拟议的策略确保在低转速时获得最大扭矩,在高转速时获得高功率.
- 单向刺激电流方法可以防止永久磁铁的去磁化,并减少铜的损失,提高效率.
- 常量功率 (CP) 区域扩大了4.2:1的比率.
- MOALO算法成功优化了混合化比,并分析了它对输出功率的影响.
结论:
- 开发的控制策略显著提高了EV应用的HEPMSM性能.
- 新的单向激发电流方法提高了效率和电机可靠性.
- 模拟结果验证了该策略在实现高速加速,效率和可靠性方面的有效性.
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