电力活塞式电动机混合驱动系统性能分析

Performance analysis of hybrid drive electromagnetic permanent magnet system for electric piston motor

针对电动汽车电动化底盘电力活塞式电动机电磁驱动系统存在的电磁力对电流大小过度依赖的问题,提出一种采用永磁电磁混合方式构成电力活塞式电动机混合驱动系统驱动活塞做功的方案,设计了电磁永磁混合驱动系统结构。基于磁路分析法建立了传统电磁驱动系统和电磁永磁混合驱动系统的等效磁路模型,并建立了两种驱动系统的仿真模型,在同等条件下对两种驱动系统进行了研究分析,结果表明:同等条件下,电磁永磁混合驱动系统产生的电磁力是传统电磁驱动系统的17.3倍;在同等工作要求下,电磁永磁混合驱动系统的电流消耗为传统电磁驱动系统的25.2%,有效降低了电动汽车电动化底盘电磁永磁混合驱动系统的能耗,验证了所提方案的可行性和有效性。

In view of problem of the electromagnetic force over-reliance on the current that exists in the electromagnetic drive of electric vehicle electromagnetic engine, a hybrid drive system by using permanent and electromagnets electric to drive piston has been proposed. The hybrid drive system was designed and analysed, and equivalent magnetic circuit models of two drive systems were got via magnetic circuit analysis. The mathematical models describing the driven systems were established based on the theories of electromagnetic; the simulation research and performance analysis of the＆amp;nbsp;driven systems were carried out under the same conditions. The results show that, the magnitude of electromagnetic force generated by the hybrid drive system is 17. 3 times that of conventional electro-magnet electromagnetic force under the same conditions; Current consumption of the hybrid drive system reduced by 25. 2%compared with the original electromagnetic drive system when reaching the same requirements. The energy consumption is reduced effectively. The feasibility and effectiveness of the proposed scheme are proved.