Sangeetha Elango, Ramachandran Vijaya Priya
Vellore Institute of Technology, School of Electrical Engineering, Vellore, 632014, Tamil Nadu, India.
Heliyon. 2024 Jul 27;10(15):e35244. doi: 10.1016/j.heliyon.2024.e35244. eCollection 2024 Aug 15.
Permanent magnet synchronous machine (PMSM) has proven to be a more economical traction drive system for electric vehicle (EV) applications owing to increased efficiency and high-power density. However, the drive system requires more efficient control schemes to deliver better dynamic performance irrespective of dynamic changes in the motor speed, machine parameters and disturbances. Hence, to tackle the dynamic changes, to enhance the wider operating speed, to achieve precise speed tracking capability, and improved efficiency, a novel control algorithm for the PMSM based EV is proposed in this paper. The control algorithm is implemented by adopting the merits of conventional proportional resonance (PR) and proportional integral (PI) controller. The proposed control strategy is designed with an outer PI speed regulator and the inner enhanced PR (EPR) current regulator. The uniqueness of the proposed EPR controller is that the controller is designed to damp the torsional mode oscillation owing to dynamic changes such as speed and torque regulation evading the additional control loop. The effectiveness of the control scheme is tested in MATLAB Simulink and hardware-in-loop (HIL) real time simulator RT5700. To validate the effectiveness of the proposed control scheme the results are compared with the conventional control schemes. The results presented show that the proposed control technique successfully enhances the static and dynamic performance, and resilience of the EV system. Also, the proposed scheme significantly reduces the flux ripples, torque ripples, current jitter, peak overshoot, undershoot compared to the conventional current controllers.
永磁同步电机（PMSM）已被证明是一种更经济的电动汽车（EV）牵引驱动系统，因为它具有更高的效率和高功率密度。然而，无论电机速度、电机参数和干扰如何动态变化，该驱动系统都需要更高效的控制方案来提供更好的动态性能。因此，为了解决动态变化、提高更宽的运行速度、实现精确的速度跟踪能力并提高效率，本文提出了一种基于PMSM的电动汽车新型控制算法。该控制算法通过采用传统比例谐振（PR）控制器和比例积分（PI）控制器的优点来实现。所提出的控制策略设计有一个外部PI速度调节器和一个内部增强型PR（EPR）电流调节器。所提出的EPR控制器的独特之处在于，该控制器旨在抑制由于速度和转矩调节等动态变化引起的扭转模式振荡，而无需额外的控制回路。该控制方案的有效性在MATLAB Simulink和硬件在环（HIL）实时模拟器RT5700中进行了测试。为了验证所提出控制方案的有效性，将结果与传统控制方案进行了比较。给出的结果表明，所提出的控制技术成功地提高了电动汽车系统的静态和动态性能以及弹性。此外，与传统电流控制器相比，所提出的方案显著降低了磁通脉动、转矩脉动、电流抖动、峰值超调量和下冲量。
