Switched Reluctance Motor Drive for Automotive Applications

本研究旨在改善开关磁阻电动机的驱动性能，为汽车行业提供一种具有成本效益的开关磁阻电动机平稳运行解决方案。开关磁阻电动机（SRM）由于不含稀土永磁体，转子上无线圈，结构简单，是一种很有前途的电动汽车电机。SRM广泛应用的主要障碍是转矩脉动、噪声以及用于电机驱动的电力电子变换器的尺寸和成本。在本研究中，我们将致力于减少开关元件的数量，从而减少开关损耗，提高SRM驱动器的效率。碳化硅（SiC）半导体具有高开关频率和宽带隙的特点，在高电压下可靠地工作，将有助于这项研究。SiC技术与新型转换器设计的结合将在缩小驱动器物理尺寸和降低开关损耗方面发挥重要作用。可靠的SRM驱动器将在汽车革命和可持续环境中发挥重要作用。主要目标是：* 提高SRM驱动器的整体运行效率 * 实现更快的励磁和退磁时间，从而获得更平稳的扭矩。*制定可靠和合理的成本驱动。降低开关损耗和电机的物理尺寸。

This research project is intended to improve the switched reluctance motor drive performance to provide a smooth SRM operation solution with a cost-effective technology to automotive industries. Absence of rare earth magnet, no coils on the rotor and their simple design make switched reluctance motor (SRM) a promising machine for electric vehicles. The main barriers for wide-spread use of SRM are torque pulsations, acoustic noise and size and cost of power electronic converter used for motor drive. In this research we will work to minimize the switch component count of the drive which lead to reduce the switching loss and increase the efficiency of SRM drive. The silicon carbide (SiC) semiconductors characterised with high switching frequency and wide bandgap reliable to operate at a high voltage, will be instrumental on this research. The use of SiC technology with novel converter design will play a significant role in miniaturizing the drive physical size and reducing the switching losses. Reliable SRM drive will have a substantial role in the automotive revolution and sustainable environment.The main objective will be:* To increase the overall operation efficiency of SRM drive* To achieve a faster excitation and demagnetization time resulting in smoother torque.* To develop a reliable and reasonable cost drive. Down grade the switching loss and the physical size of the motor.