A quick demagnetization approach for low torque ripple in three-phase switched reluctance motor drive system for electric vehicle applications,International Journal of Circuit Theory and Applications

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A quick demagnetization approach for low torque ripple in three-phase switched reluctance motor drive system for electric vehicle applications
International Journal of Circuit Theory and Applications ( IF 1.8 ) Pub Date : 2023-12-20 , DOI: 10.1002/cta.3898
Indira Damarla ₁ , Venmathi Mahendran ₂ , Ramudu Ganji ₃ , Sangari A ₄

Affiliation

Electric vehicles (EVs) have gained a forward approach for achieving the low carbon economy and green transportation. Switched reluctance (SR) motor-based propulsion mechanisms have been popularly used for EVs due to the wide speed range capability. The conventional phase current regulation technique does not give the satisfactory reduction of torque ripple in SR motor drive, particularly for automotive applications. To overcome the issue, a frontend boost converter (FEBC) is proposed to realize the quick excitation and demagnetization. Initially, the problems associated with the conventional asymmetric half bridge converter are investigated at various levels of phase current. The various operating modes of proposed drive system with FEBC are explained in detail. The proposed FEBC has the significant benefit of being able to provide variable boosting voltages based on the dynamic behavior of the SR motor. The phase voltages are increased during the fast magnetization and demagnetization modes due to the inclusion of FEBC, and hence, quick magnetization and demagnetization have been achieved. The proposed FEBC drive system has been simulated through the Matlab Simulink toolbox. The experimental results are also carried out in order to validate the simulation results.

中文翻译：

电动汽车应用三相开关磁阻电机驱动系统中低扭矩脉动的快速退磁方法

电动汽车（EV）为实现低碳经济和绿色交通奠定了基础。由于具有较宽的速度范围能力，基于开关磁阻 (SR) 电机的推进机构已广泛用于电动汽车。传统的相电流调节技术并不能令人满意地减少 SR 电机驱动中的扭矩纹波，特别是对于汽车应用。为了克服这个问题，提出了一种前端升压转换器（FEBC）来实现快速励磁和退磁。首先，在不同的相电流水平下研究与传统不对称半桥转换器相关的问题。详细解释了所提出的带有 FEBC 的驱动系统的各种操作模式。所提出的 FEBC 具有能够根据 SR 电机的动态行为提供可变升压电压的显着优势。由于包含FEBC，在快速磁化和退磁模式期间相电压增加，因此实现了快速磁化和退磁。所提出的 FEBC 驱动系统已通过 Matlab Simulink 工具箱进行了仿真。还进行了实验结果以验证模拟结果。

更新日期：2023-12-21

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