新型交替极混合励磁电机宽速域电流高效协调控制  

Wide Speed Area and Efficient Current Coordinated Control of New Consequent-pole Hybrid Excitation Motor

作　　者：樊英[1] 雷宇通 张秋实 FAN Ying;LEI Yutong;ZHANG Qiushi(School of Electrical Engineering,Southeast University,Nanjing 210096,Jiangsu Province,China)

机构地区：[1]东南大学电气工程学院,江苏省南京市210096

出　　处：《中国电机工程学报》2020年第24期7918-7927,共10页Proceedings of the CSEE

基　　金：国家自然科学基金项目(51877043,51991381)。

摘　　要：混合励磁同步电机(hybrid excitation synchronous motor,HESM)具有磁场调节方便可靠的特点,适合航空航天、电动汽车等宽速域应用场合。新型交替极无刷混合励磁(consequent-pole brushless hybrid excitation,CPBHE)电机是一种具有交替极、双定子结构的交流调磁混合励磁电机,适合电动汽车驱动应用。该文在分析其调磁机理的基础上,提出等效气隙模型及多d-q轴数学模型,解决其气隙磁链不对称无法建立d-q轴数学模型问题。针对传统二维电流矢量id-iq平面无法追踪电励磁电流轨迹问题,提出一种三维电流矢量id-iq-if空间中分析电磁约束的方法。针对电动汽车宽调速、高可靠、广域高效的运行需求,提出一种结合最小铜耗控制与混合超前角弱磁控制的宽速域电流高效控制策略,实现CPBHE电机宽调速电流高效协调控制。进行样机实验与仿真对比,结果验证所提控制策略的有效性与鲁棒性。Hybrid excitation synchronous motor(HESM) is convenient and reliable to adjust the magnetic field, it is suitable for aerospace and electric vehicles. The consequent-pole brushless hybrid excitation(CPBHE) motor is an AC-excited hybrid excitation motor with consequent-pole and double stator, suitable for electric vehicle driving applications. Based on the analysis of its magnetic regulation principle, this paper proposed an equivalent air gap model and a multi-d-q axis mathematical model to solve the problem that the air gap flux linkage was asymmetric and the d-q axis mathematical model cannot be established. For the problem that the traditional two-dimensional current vector id-iq plane can’t track the trajectory of the electric excitation current, a new method for analyzing electromagnetic constraints in the three-dimensional current vector id-iq-if space was proposed. Focusing on the operation requirements of electric vehicles with wide speed regulation, high reliability, and wide area and high efficiency, this paper proposed a wide-speed current control strategy that combines minimum copper loss control and hybrid lead angle flux-weakening control, efficient and coordinated control of CPBHE motor was achieved. Experimental and simulation results verify the effectiveness and robustness of the proposed control strategy.

关 键 词：交替极 混合励磁 电动汽车 弱磁控制 最小铜耗控制 

分 类 号：TM341[电气工程—电机]