基于多变运行工况的漏磁可控型永磁电机变参数最大转矩电流比控制  

Variable-parameter Maximum Torque Per Ampere Control of Flux Leakage Controllable Permanent Magnet Motor Considering Multiple Operating Conditions

作　　者：吴润秋 徐磊[1] 朱孝勇[1] 范文杰 杨贺雅 WU Runqiu;XU Lei;ZHU Xiaoyong;FAN Wenjie;YANG Heya(School of Electrical and Information Engineering,Jiangsu University,Zhenjiang 212013,Jiangsu Province,China;College of Electrical Engineering,Zhejiang University,Hangzhou 310027,Zhejiang Province,China)

机构地区：[1]江苏大学电气信息工程学院,江苏省镇江市212013 [2]浙江大学电气工程学院,浙江省杭州市310027

出　　处：《中国电机工程学报》2025年第5期1935-1945,I0027,共12页PROCEEDINGS OF THE CHINESE SOCIETY FOR ELECTRICAL ENGINEERING

基　　金：国家自然科学基金项目(重点项目)(51937006)。

摘　　要：漏磁可控永磁(flux leakage controllable permanent magnet,FLCPM)电机是一种新型磁通可控型永磁电机,具有低速大扭矩和宽调速特性,在多变运行工况电驱动领域具有潜在的广泛应用前景。针对该类电机磁链、电感等参数随电流变化导致控制系统参数失配、效率偏低等问题,该文提出一种变参数最大转矩电流比控制策略。根据FLCPM电机运行原理,建立漏磁变化与运行工况的映射关系,将运行工况分为轻载区、中高负载区以及饱和区,并将参数变化明显的中高负载区分为3个典型工况。在此基础上,提出非线性分段变参数偏导项求解方法,推导变工况下FLCPM电机最大转矩电流比求解方程,实现该类电机最优d/q轴电流分配,提高多变运行工况下电机效率。最后,通过实验验证所提理论和控制策略的有效性。The flux leakage controllable permanent magnet(FLCPM)motor is a new type of flux-controlled permanent magnet motor with low speed,high torque,and wide speed range characteristics.It has a potential wide application prospect in the field of multiple operating condition electric drive.In order to solve the problems of mismatching of control system parameters and low efficiency caused by the change of flux and inductance of this kind of motor with current,a control strategy of maximum torque per ampere under parameters variable is proposed in this paper.According to the operation principle of the FLCPM motor,the mapping relationship between flux leakage and operating conditions is established,and the medium and high load areas with obvious parameters change are divided into three typical operating conditions.On this basis,a nonlinear piecewise variable parameter derivative term solution method is proposed,and the equation for solving the maximum torque per ampere of FLCPM motor under varying working conditions is derived to achieve the optimal d/q axis current distribution of this type of FLCPM motor,thereby improving the efficiency of FLCPM motor under multiple operating conditions.Finally,the effectiveness of the proposed theory and control strategy is verified by experiments.

关 键 词：漏磁可控永磁电机 变参数 最大转矩电流比 电流矢量角 多变运行工况 

分 类 号：TM351[电气工程—电机]