Analysis of permanent magnet machine for sensorless control based on high frequency signal injection

Author

Jang, Ji-Hoon ; Sul, Seung-Ki ; Ha, Jung-Ik ; Ohto, Motomichi ; Ide, Kozo

Author_Institution

Coll. of Eng., Seoul Nat. Univ., South Korea

Volume

1

fYear

2003

fDate

12-16 Oct. 2003

Firstpage

592

Abstract

This paper presents the analysis of the surface mounted permanent magnet (SMPM) machine for the sensorless control algorithm using the high frequency fluctuating voltage signal injection method. A simplified high frequency model of a SMPM machine in the estimated rotor reference frame is developed. Then, the impedances of a SMPM machine at high frequency are analyzed by finite element analysis (FEA) and is compared with impedance measurements using a pulse width modulation (PWM) inverter system under various injection conditions. The results of the FEA and high frequency impedance measurements are coincident with each other, and give physical insights in sensorless operation of the SMPM machine. The experimental results of speed control and position control using a commercial SMPM machine are presented based on the analysis of the SMPM machine for the sensorless control algorithm.

Keywords

PWM invertors; angular velocity control; electric impedance measurement; finite element analysis; machine control; motor drives; permanent magnet motors; position control; rotors; PWM inverter system; estimated rotor reference frame; finite element analysis; high frequency; high frequency fluctuating voltage signal injection method; high frequency impedance measurements; high frequency model; high frequency signal injection; impedance measurements; impedances; permanent magnet machine; position control; pulse width modulation; sensorless control; speed control; surface mounted permanent magnet machine; Algorithm design and analysis; Frequency estimation; Frequency measurement; Impedance measurement; Magnetic analysis; Permanent magnet machines; Pulse measurements; Pulse width modulation inverters; Sensorless control; Signal analysis;

fLanguage

English

Publisher

ieee

Conference_Titel

Industry Applications Conference, 2003. 38th IAS Annual Meeting. Conference Record of the

Print_ISBN

0-7803-7883-0

Type

conf

DOI

10.1109/IAS.2003.1257561

Filename

1257561