Optimal Control for SinglePhase Brushless DC （最优控制的单相无刷直流）.pdf

Research Journal of Applied Sciences, Engineering and Technology 5(4): 1187-1192, 2013 ISSN: 2040-7459; e-ISSN: 2040-7467 © Maxwell Scientific Organization, 2013 Submitted: June 22, 2012 Accepted: August 17, 2012 Published: February 01, 2013 Optimal Control for Single-Phase Brushless DC Motor with Hall Sensor 1 2 1 1 Dawei Meng, Xifeng Wang, Yongming Xu and Yufeng Lu 1Harbin University of Science and Technology, Harbin, 150080, China 2Heilongjiang Institute of Technology, Harbin, 150050, China Abstract: This study deals with the optimization control of a single-phase brushless DC motor (BLDCM) with Hall sensor. A simple modeling method with feasible parameter identification is adopted to meet characteristics of single- phase BLDCM. With the linear Hall sensor feedback, the advantages of current-mode control scheme and soft- commutation scheme are proposed to achieve maximum efficiency over the entire speed range. This thesis also develops a low-cost and high efficiency control for single-phase BLDCM. The hardware test platform has been constructed on a single-chip Field Programmable Gate Array (FPGA) of Cyclone II Family of Altera to verify the performance and feasibility of the proposed optimization control strategies. When using the control scheme with Hall sensor, experimental results show that there are at least a 10% improvement for average value of dc-link current, a 10% improvement for RMS value of phase current and a 40% improvement for peak value of phase current. Keywords: BLDCM, FPGA, hall sensor, op