开关磁阻电机变速驱动设计.pdfVIP

IEEE TRANSACTIONS ON INDUSTRY APPLICATIONS, VOL. 43, NO. 3, MAY/JUNE 2007 703 Design and Development of Low-Cost and High-Efficiency Variable-Speed Drive System With Switched Reluctance Motor Keunsoo Ha, Student Member, IEEE, Cheewoo Lee, Student Member, IEEE, Jaehyuck Kim, Student Member, IEEE, R. Krishnan, Fellow, IEEE, and Seok-Gyu Oh, Member, IEEE Abstract—Low-cost switched-reluctance-motor (SRM) drive has intensified with the prospective oncoming variable-speed systems are actively sought for high-efficiency home appliances applications. One of the possible electrical machines in low- and power tools. Minimizing the number of switching devices cost and variable-speed drives is the switched reluctance motor has been in power converters that is the main method to re- duce drive costs. Single-switch-per-phase converters have been (SRM). SRM drive system is a strong candidate for low-cost cost effective due to the compactness of the converter package variable-speed applications, and that is mainly due to the simple resulting in a possible reduction in their cost. However, some of construction of the machine, brushless operation, absence of the single-switch-per-phase converters have the drawbacks that magnets, and windings on the rotor while still maintaining a include higher losses and low-system efficiency. In order to over- relatively high torque density. This makes it potentially a very come these shortcomings, the choice narrows down to the split ac converter through the quantitative analysis in terms of device cost-effective and high-performance drive suitable for many