Research on BLDCM DTC with Simplified Structure
To solve those problems associated with direct torque control (DTC) of brushless DC motor (BLDCM), such as difficulty to control flux and complexity to estimate torque, a new BLDCM DTC scheme with simplified structure was studied in this paper: the flux hysteresis controller was ignored in the constant torque region and the back electromotive force shape function method was proposed to make the estimation of torque easier. The proper stator voltage space vector was selected via the output of the torque hysteresis controller and the sector which the current rotor flux locates in. The structure of the control system is simplified and the cost is reduced. Simulated and experimental results are presented, and it is shown that the feasibility and the simpleness of the scheme. It is also verified that the fast torque response merit is preserved. The scheme is easy to implement in the industrial application.
Xiaoxia Zhou Haifeng Wei
School of Electrical and Information Engineering, Jiangsu University, Zhen jiang 212013, Jiangsu, China
国际会议
武汉
英文
249-252
2008-12-19（万方平台首次上网日期，不代表论文的发表时间）