Oubelaid Adel, Kakouche Khoudir, Belkhier Youcef, Khosravi Nima, Taib Nabil, Rekioua Toufik, Bajaj Mohit, Rekioua Djamila, Tuka Milkias Berhanu
Faculté de Technologie, Laboratoire de Technologie Industrielle et de l'Information, Université de Bejaia, Targa ouzemour, 06000, Bejaia, Algeria.
Institut de Recherche de l'Ecole Navale (EA 3634, IRENav), French Naval Academy, 29240, Brest, France.
Sci Rep. 2024 Mar 18;14(1):6448. doi: 10.1038/s41598-024-56209-9.
High performance and comfort are key features recommended in hybrid electric vehicle (HEV) design. In this paper, a new coordination strategy is proposed to solve the issue of undesired torque jerks and large power ripples noticed respectively during drive mode commutations and power sources switching. The proposed coordinated switching strategy uses stair-based transition function to perform drive mode commutations and power source switching's within defined transition periods fitting the transient dynamics of power sources and traction machines. The proposed technique is applied on a battery/ supercapacitor electric vehicle whose traction is ensured by two permanent magnet synchronous machines controlled using direct torque control and linked to HEV front and rear wheels. Simulation results highlight that the proposed coordinated switching strategy has a noteworthy positive impact on enhancing HEV transient performance as DC bus fluctuations were reduced to a narrow band of 6 V and transient torque ripples were almost suppressed.
高性能和舒适性是混合动力电动汽车（HEV）设计中推荐的关键特性。本文提出了一种新的协调策略，以解决在驱动模式切换和电源切换过程中分别出现的不期望的扭矩突变和大功率波动问题。所提出的协调切换策略使用基于阶梯的过渡函数，在符合电源和牵引电机瞬态动力学的定义过渡周期内执行驱动模式切换和电源切换。所提出的技术应用于一辆电池/超级电容器电动汽车，其牵引由两台采用直接转矩控制的永磁同步电机确保，并连接到HEV的前轮和后轮。仿真结果表明，所提出的协调切换策略对提高HEV的瞬态性能具有显著的积极影响，因为直流母线波动减小到6V的窄带，瞬态转矩波动几乎得到抑制。
