摘要
永磁同步电机凭借高功率密度、高效率及出色的动态响应特性，已成为新能源汽车驱动系统的核心动力单元。本文从系统层面对其动态特性开展研究，通过构建d-q坐标系下的数学模型，分析电磁转矩、转速、电流及外扰的响应过程，阐释转矩波动与参数耦合的作用机理。研究结果表明，合理的结构设计与先进的控制策略可显著提升电机响应速度及系统稳定性，为电动汽车驱动性能与能效优化提供理论与技术支撑。
Abstract
With their high power density, efficiency, and excellent dynamic response characteristics, permanent magnet synchronous motors have become the core power unit in new energy vehicle drive systems. This paper investigates their dynamic characteristics at the system level. By constructing a mathematical model in the d-q coordinate system, we analyze the response processes of electromagnetic torque, rotational speed, current, and external disturbances, elucidating the mechanism of torque fluctuations and parameter coupling. The results demonstrate that rational structural design and dynamic control strategies can significantly enhance motor response speed and system stability, providing theoretical and technical support for optimizing the driving performance and energy efficiency of electric vehicles.
关键词
永磁同步电机 /
汽车驱动系统 /
动态特性 /
矢量控制 /
模型预测控制
Key words
PMSM /
vehicle drive system /
dynamic characteristics /
vector control /
model predictive control
党海钊, 蒋 立, 袁名华, 王茗瑶, 王 涛.
永磁同步电机在汽车驱动系统中的动态特性[J]. 汽车电器. 2025, 1(12): 28-30
Dang Haizhao, Jiang Li, Yuan Minghua, Wang Mingyao, Wang Tao.
Dynamic Characteristics of Permanent Magnet Synchronous Motor in Automobile Drive System[J]. AUTO ELECTRIC PARTS. 2025, 1(12): 28-30
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参考文献
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