Title :
AC brushless drive with low-resolution Hall-effect sensors for surface-mounted PM Machines
Author :
Capponi, Fabio Giulii ; De Donato, Giulio ; Del Ferraro, L. ; Honorati, Onorato ; Harke, Michael C. ; Lorenz, Robert D.
Author_Institution :
Dept. of Electr. Eng., Univ. of Rome "La Sapienza", Italy
Abstract :
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.
Keywords :
AC machines; Hall effect devices; brushless machines; electric sensing devices; motor drives; permanent magnet machines; rotors; surface mount technology; AC brushless drive; control algorithm; domestic appliance applications; low-resolution Hall-effect sensors; position estimation; rotor position sensors; slotless axial-flux permanent magnet machine; surface-mounted permanent magnet machines; Acceleration; Estimation error; Hall effect devices; Hardware; Industry Applications Society; Optical sensors; Optical surface waves; Sensor phenomena and characterization; Testing; Torque; Low-resolution sensors; position and velocity estimation; surface-mounted permanent-magnet (PM) machine; vector-tracking observer;
Journal_Title :
Industry Applications, IEEE Transactions on
DOI :
10.1109/TIA.2005.863904
