High Efficieny Interior Permanent Magnet Machines and Drive Systems

纪念大学的工程系正在经历前所未有的增长。有计划在MUN建立一个世界级的能源中心。由申请人开发的机械与驱动实验室将是该中心的关键部分。在过去的二十年里，内置式永磁体(IPM)电机已经成为将电能转化为机械能的最有效的装置，反之亦然。这意味着为世界各国节省了数十亿美元的能源成本。申请者在IPM机器技术的设计、开发和成功应用方面的贡献都得到了NSERC的资助，得到了全世界的广泛认可。内置式永磁电机是一种将感应、磁阻和磁滞现象结合在一起的混合式电磁能量转换器。多年来，申请人逐步解决了IPM机器的许多设计挑战。这些挑战包括：用于工业型汽车牵引电机的烧结永磁材料的设计和样机制作；用于IPM电机的新型脉宽调制、增量调制和小波调制逆变器拓扑的开发；用于IPM电机的相量角控制和间接矢量控制技术的开发；IPM电机智能运动控制算法的设计和实验实现；IPM电机的分析和有限元模型的开发；无位置传感器和无轴承IPM电机及IPM发电机和电机的保护和诊断算法的开发。这些工作已经产生了200多份IEEE交易文件、大量会议出版物、几项专利以及IEEE标准/指南、工业报告和产品。他们在博士和孟晚舟研究生、本科生、博士后研究员和研究工程师的帮助下成功地进行了这些工作。最近，对更先进的IPM机器的需求一直存在。这带来了更多的挑战和设计问题。这些都是本提案的主题，包括：在不改变气隙的情况下改变磁阻，通过磁铁定向增加轴的凸度，IPM电机的在线启动，IPM电机的热磁应力分析，以及开发用于汽车和铁路牵引的高能效可变马力驱动系统。未来5年内拟议研究的目标是：a)分析、设计和开发一种性能优于同等额定值感应电机的直线启动IPM电机；b)建立混合式IPM电机的有限元模型；c)建立IPM电机的热模型；d)对IPM电机在静态和动态负载下的应力进行分析；e)对IPM电机在弱磁运行模式下的矢量场进行分析；f)确定转子内最佳的磁铁形状、位置和方向。这些将在6名博士生、2名硕士、5名博士后研究员和7名本科生的帮助下实现。科学方法将涉及详细设计、分析、开发和测试机器的系统模型以及相关的电子和控制接口。拟议中的先进电机及相关电力电子设备研究课题对加拿大的经济开发具有重要意义。为实现拟议研究的目标，要求每年提供66 200美元的五年期赠款。

The Faculty of Engineering at Memorial University is undergoing unprecedented growth. There are plans to establish a world class Energy Center at MUN. The Machines and Drives lab, developed by the applicant, will be a key part of this center. Over the last two decades, the interior permanent magnet (IPM) machine has emerged as the most efficient device for converting electrical energy into mechanical energy and visa versa. This has meant energy cost savings worth billions of dollars to countries all over the world. The contributions of the applicant to the design, development and successful applications of IPM machine technology, which were all funded by NSERC, have been widely acknowledged worldwide. An interior permanent magnet machine is a hybrid electro-magnetic energy converter combining induction, reluctance and hysteresis phenomena. Many of the design challenges of the IPM machine have been progressively solved by the applicant over the years. These challenges include: design and prototyping of sintered permanent magnet materials (NdBFe) for industrial type automobile traction machines; development of new pulse-width modulated, delta-modulated and wavelet-modulated inverter topologies for IPM machines; development of phasor angle control and indirect vector control techniques for IPM machines; design and experimental implementation of intelligent motion control algorithms for IPM machines; development of analytical and finite element models for IPM machines; development of sensorless and bearingless IPM machines as well as protection and diagnostic algorithms for IPM generators and motors. These works have resulted in over two hundred IEEE transaction papers, a large number of conference publications, several patents as well as IEEE standards/guides, industrial reports and products. They were carried out successfully with the assistance of PhD and MEng graduate students, undergraduate students, post-doctoral fellows and research engineers. Recently, there has been a demand for more advanced IPM machines. This has given rise to more challenges and design problems. These are the subject of this proposal and include: variation of reluctance without a varying air gap, increasing the axis saliency by magnet orientation, line starting of IPM motors, thermo-magnetic stress analysis of IPM machines and development of energy efficient variable horsepower drive systems for automobile and railway traction. The objectives of the proposed research for the coming 5-year period are: a) analysis, design and development of a line start IPM motor which has better performance than an induction motor of same rating (b) development of finite element models for hybrid IPM machines c) development of thermal models for IPM machines, d) stress analysis of IPM machines for static and dynamic loads e) vector field analysis of IPM machines in the flux weakening mode of operation and f) determination of the optimum magnet shape, position and orientation inside the rotor. These will be realized with the help of 6 PhD students, 2 Masters students, 5 post doctoral fellows and 7 undergraduate students. The scientific approaches will involve detailed design, analysis, development and testing of system models of machines and associated electronics and control interfaces. The topics of the proposed research on advanced electric machines and associated power electronics are significant for economic exploitations in Canada. A five-year grant of $66,200 per year is requested to achieve the objectives of the proposed research.