48-V ISG (Integrated Starter Generator) system has attracted attention to improve the fuel efficiency of ICE (Internal Combustion Engine) vehicle. One of the key components that significantly affects the cost and performance of the 48-V ISG system is the motor. In an ISG motor, the core and copper loss make the motor efficiency change because the motor has a broad driving operated range and more diverse driving modes compared with other motors. When designing an ISG motor, the selection of an electrical steel sheet is important, because the electrical steel sheet directly influences the efficiency of the motor. In this paper, the efficiency of the ISG motor, considering core loss and copper loss, is analyzed by testing different types of electrical steel sheets with respect to the driving speed range and mode. Using the results of a finite element method (FEM) analysis, a method to select the electrical steel sheet is proposed. This method considers the cost of the steel sheet and the efficiency according to driving mode frequency during the design process of the motor. A wound rotor synchronous machine (WRSM) was applied to the ISG motor in this study.
展开▼
机译:48 V ISG(集成起动发电机)系统已引起人们的关注,以提高ICE(内燃机)车辆的燃油效率。电机是严重影响48 V ISG系统成本和性能的关键组件之一。在ISG电动机中,铁芯和铜损会导致电动机效率发生变化,因为与其他电动机相比,电动机具有较宽的驱动范围和多种驱动方式。在设计ISG电机时,选择电工钢板非常重要,因为电工钢板会直接影响电机的效率。在本文中,通过测试不同类型的电磁钢板的驱动速度范围和模式,分析了考虑铁心损耗和铜损的ISG电动机的效率。利用有限元分析的结果,提出了一种电工钢板的选择方法。该方法在电动机的设计过程中根据驱动模式频率来考虑钢板的成本和效率。在这项研究中,将绕线转子同步电机(WRSM)应用于ISG电机。
展开▼