电动汽车用容错型混合励磁轴向磁通切换永磁电机及其控制系统研究

项目名称： 电动汽车用容错型混合励磁轴向磁通切换永磁电机及其控制系统研究

项目编号： No.51507087

项目类型： 青年科学基金项目

立项/批准年度： 2016

项目学科： 电工技术

项目作者： 张蔚

作者单位： 南通大学

项目金额： 23万元

中文摘要： 本课题提出一种适用于驱动电动汽车的新型轴向磁场电机-容错型混合励磁轴向磁通切换永磁电机。电机采用双定子单转子结构，具有结构紧凑、牢固，功率和转矩密度高的特点。独特的定子结构设计使每相绕组实现相间隔离，提高系统的容错性；定子上放置电励磁绕组实现混合励磁，增加输出转矩，拓宽调速范围。项目采用理论分析、数值计算、性能仿真与实验研究等方法，对所提出电机及其控制系统进行研究。内容包括：电磁参数计算、磁路结构优化、损耗和温升计算、驱动系统仿真、控制算法研究等。通过本项目的研究，探索该电机的设计、分析及优化方法；电机电枢电流与励磁电流的协调控制，实现效率在线优化；驱动系统故障发生后的容错控制策略研究；构建实验测试平台，驱动系统在不同工况和负载条件下试验研究，解决该新型电机设计、优化、驱动系统控制方法等关键问题，为后续研究和应用奠定基础，并为电动汽车驱动系统提供新的发展思路，具有重要的理论意义和应用价值。

中文关键词： 轴向磁场；容错；；混合励磁；磁通切换；永磁电机

英文摘要： A novel fault-tolerant hybrid excitation axial field flux-switching permanent magnet machine (FTHEAFFSPMM) is proposed in the project for the application of electric vehicle (EV). The machine is composed of dual stators and single rotor, and it exhibits the advantages of compact and robust structure, high power density and large torque density. Owing to the special design of stator structure, the stator windings in each phase are separated, and therefore the fault tolerance can be improved. In order to increase the output torque and expand the speed operation range, the hybrid excitation is carried out by adding filed windings in the stator. In this project, the theoretical analysis, the numerical calculation, the performance simulation and the experimental research are implemented to investigate the FTHEAFFSPMM and the control system. The research contents include the computation of electromagnetic parameters, the optimal design of magnetic circuit, the calculation of losses and temperature-rise, the simulation of drive system, and the control methods ect.. By conducting the project, the methods of design, analysis and optimization are developed and researched for the FTHEAFFSPMM, the efficiency is optimized on-line by coordinating the control of armature current and DC excitation current, the remedial strategy is investigated when the fault happens, and the testing platform is built to implement the experimental researches under the condition of different operation states and loads. The project would solve these key problems such as the design and optimization of FTHEAFFSPMM, and the control strategies of the drive system. These would lay the foundation for the further research and application of FTHEAFFSPMM. The object is to supply a new method for the development of EV drive system, and therefore this project has theoretical significances and practical values.

英文关键词： axial field ;fault-tolerant;hybrid excitation;flux-switching;permanent magnet machine