Title :
New absolute rotor-position sensors for inverter-driven motors
Author :
Sun, Lizhi ; Shang, Jing ; Zou, Jibin
Author_Institution :
Dept. of Electr. Eng., Harbin Inst. of Technol., China
Abstract :
A new type of variable-reluctance (VR) resolver is presented for rotor-position sensing. This VR resolver is realized by varying airgap reluctance in certain waveform. Without winding on rotor and with only simple winding patterns on stator, and without structure constrains on size as in conventional resolvers, this resolver can be designed into compact size and is suitable to be integrated into PMSM or brushless motors. Sample testings show that the errors between standard sine-wave and the resolver outputs are within 1%, position error is within 2.3E-3 RAD.
Keywords :
brushless DC motors; invertors; position measurement; reluctance motors; rotors; sensors; stators; airgap reluctance; brushless motors; compact size; inverter-driven motors; position error; resolver outputs; rotor; rotor-position sensors; stator; structure constrains; variable-reluctance resolver; winding patterns; Brushes; Optical sensors; Reluctance motors; Rotors; Shape; Signal resolution; Stator windings; Synchronous motors; Testing; Virtual reality;
Conference_Titel :
Magnetics Conference, 2005. INTERMAG Asia 2005. Digests of the IEEE International
Print_ISBN :
0-7803-9009-1
DOI :
10.1109/INTMAG.2005.1463916
