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AC brushless drive with low-resolution Hall-effect sensors for surface-mounted PM Machines

2006; Institute of Electrical and Electronics Engineers; Volume: 42; Issue: 2 Linguagem: Inglês

10.1109/tia.2005.863904

1939-9367

Fabio Giulii Capponi, Giulio De Donato, Luigi Ferraro, O. Honorati, Michael C. Harke, R. D. Lorenz,

Magnetic Field Sensors Techniques

An ac brushless drive in which Hall-effect sensors are used as rotor position sensors is presented in this paper. Three different methods to obtain a high-resolution position estimation from the low-resolution sensors are described and compared through simulation and experimental testing. The proposed control algorithm's most innovative feature is its adaptability to the entire speed range, including startup, when using any of the three estimation algorithms. The control algorithm has been implemented and tested in order to drive a slotless axial-flux permanent-magnet (PM) machine for domestic appliance applications.