Title :
Characteristics and analysis of the permanent magnet synchronous motor with closed slot stator core for position sensorless drive
Author :
Baba, Toshiyuki ; Masukane, Isao ; Matsuse, Kouki ; Ohta, Hisayoshi ; Obayashi, Kouji
Author_Institution :
Dept. of Electr. Eng., Meiji Univ., Kawasaki, Japan
Abstract :
This paper describes a method to estimate rotor position at stand-still mode and characteristics of motor efficiency at driving mode of a permanent magnet synchronous motor without position sensor. The motor, which is additionally examined for the stator core and has a structure with closed stator slot, is partially saturated at saturable yoke by small armature current. The estimation is performed by using a vector locus of armature current response at partial magnetic saturation. We can obtain the estimation result of a maximum error, 11 degrees, in electrical angle with 6 percent of rated current
Keywords :
magnetic cores; parameter estimation; permanent magnet motors; rotors; stators; synchronous motor drives; armature current response; closed stator slot; driving mode; motor efficiency; partial magnetic saturation; partially saturated; permanent magnet synchronous motor; position sensorless drive; rotor position estimation; saturable yoke; small armature current; stand-still mode; stator core; vector locus; AC motors; Magnetic analysis; Magnetic flux; Permanent magnet motors; Rotors; Saturation magnetization; Sensorless control; Stator cores; Synchronous motors; Teeth;
Conference_Titel :
Power Conversion Conference, 2002. PCC-Osaka 2002. Proceedings of the
Conference_Location :
Osaka
Print_ISBN :
0-7803-7156-9
DOI :
10.1109/PCC.2002.998558
