一种优化开关磁阻电机换相区控制策略的高效率转矩分配函数  

An Efficient Torque Sharing Function for Optimizing the Commutation Zone Control Strategy of Switched Reluctance Motors

作　　者：杨帆[1,2,3,4] 陈昊 李晓东[5] Miguel Pablo Aguirre Muhammad Asghar Saqib Yang Fan;Chen Hao;Li Xiaodong;Miguel Pablo Aguirre;Muhammad Asghar Saqib(School of Electrical Engineering China University of Mining and Technology,Xuzhou 221116 China;International Joint Research Center of Central and Eastern European Countries on New Energy Electric Vehicle Technology and Equipment,Xuzhou 221008 China;International Cooperation Joint Laboratory of New Energy Power Generation and Electric Vehicles of Jiangsu Province Colleges and Universities,Xuzhou 221008 China;Xuzhou Key Laboratory of New Energy Electric Vehicle Technology and Equipment,Xuzhou 221008 China;Faculty of Innovation Engineering Macao University of Science and Technolog,Macao 999078 China;Instituto Tecnológico de Buenos Aires Department of Electronic Engineering,Buenos Aires Argentina B1636;Department of Electrical Engineering University of Engineering and Technology,Nawabshah Pakistan 44000)

机构地区：[1]中国矿业大学电气工程学院,徐州221116 [2]新能源电动车技术与装备中东欧国家国际联合研究中心,徐州221008 [3]江苏省高校新能源发电与电动车国际合作联合实验室,徐州221008 [4]徐州市新能源电动车技术与装备重点实验室,徐州221008 [5]澳门科技大学创新工程学院,中国澳门999078 [6]布宜诺斯艾利斯工学院电子工程系,布宜诺斯艾利斯B1636 [7]巴基斯坦工程技术大学电气工程系,讷瓦布沙阿44000

出　　处：《电工技术学报》2024年第6期1671-1683,共13页Transactions of China Electrotechnical Society

基　　金：国家自然科学基金项目(51977209);徐州市推动科技创新专项资金项目-创新能力建设计划(KC21315);南京市国际合作项目(202002034)资助。

摘　　要：转矩分配函数被广泛应用于抑制开关磁阻电机的转矩脉动。然而,输入相转矩跟踪不足或者输出相产生较大的负转矩这两种情况通常会导致电机的转矩脉动难以得到有效抑制,并降低电机的运行效率。因此,为了能够有效降低电机的转矩脉动并提高电机的效率,提出了一种新型的转矩分配函数控制策略。在提出的转矩分配函数控制策略中,电机的换相区域分为两个区域。在前一区域中,通过降低输入相转矩分配的比例,可以实现输入相实际转矩快速跟踪参考转矩,电机的转矩脉动有效降低。同时由于在输入相电感变化率较低时减少输入相分配的转矩,从而输入相的峰值电流随之降低,电机的转矩电流比提高。在后一区域中,将输出相的电流在转子对齐位置附近处减小到0,以避免产生较大的负转矩。因此,在所提出的方案下,电机的转矩脉动得到有效抑制,电机的效率也得到了提高。为了验证该方法的有效性,在一台12/8三相开关磁阻电机上进行了仿真和实验。结果表明,所提出的转矩分配函数控制策略能有效降低开关磁阻电机转矩脉动,也能有效地提高开关磁阻电机的运行效率。The development of electric vehicles can effectively solve the problem of energy shortage.At the same time,the torque ripple and efficiency are essential characteristics of the operational performance of electric vehicles.Switched reluctance motor(SRM)is widely used in electric vehicles due to its strong robustness,fast speed,and low cost.Therefore,it is very important to effectively reduce the torque ripple and improve the efficiency of switched reluctance motors.The following aspects are necessary to achieve efficient control and low torque ripple: (1) Distribute more torque to the phase with stronger torque generation ability in the commutation area. The outgoing phase has a higher torque generation ability at the initial position of the commutation zone. Then, more torque should be allocated to the outgoing phase in this area. The efficiency of the motor will be improved. In this situation, the actual torque can better track the reference torque when the incoming phase torque generation ability is weak. The torque ripple of the motor will also be reduced. (2) Reduce the negative torque of the motor. However, most previous studies have mainly considered one aspect. Therefore, a new TSF control method is proposed that divides the motor commutation area into two areas, which are controlled separately. At the end of the latter area, the phase current of the outgoing phase will decrease to zero, and the negative torque can be reduced. Meanwhile, less torque will be distributed to the incoming phase when the incoming phase has less torque generation ability. Firstly, the proposed torque sharing function (TSF) based on the sigmoid function is divided into two parts in the commutation area. Then, the two regions of the commutation area will be controlled separately. Secondly, a simple adaptive control strategy is adopted to obtain the relevant parameters of the proposed method. The optimal control parameters can be effectively obtained under different loads and speeds when the adaptive control strategy is adopted. In

关 键 词：开关磁阻电机 转矩分配函数 负转矩 转矩电流比 效率 

分 类 号：TM301[电气工程—电机]