Accurate estimation of initial rotor position for brushless DC motor position sensorless drive

Author

Hatakeyama, Kentarou ; Nakano, Shinsuke ; Kurita, Nobuyuki ; Ishikawa, Takeo

Author_Institution

Dept. of Electron. Eng., Gunma Univ., Kiryu, Japan

fYear

2009

fDate

15-18 Nov. 2009

Firstpage

1

Lastpage

6

Abstract

It is necessary to estimate the initial rotor position accurately when the sensorless control is applied to brushless DC motor. First, we explain the estimation method of initial rotor position. Next, we investigate the influence of the amplitude and frequency of high-frequency input voltage on the estimation accuracy and obtain the optimal values. The brushless DC motor can start smoothly by using four optimal values of high-frequency input voltage.

Keywords

brushless DC motors; rotors; sensorless machine control; brushless DC motor position sensorless drive; initial rotor position estimation; input voltage frequency; voltage amplitude; Amplitude estimation; Brushless DC motors; DC motors; Frequency estimation; Permanent magnet motors; Pulse width modulation inverters; Rotors; Sensorless control; Synchronous motors; Voltage control; Brushless DC Motor; Initial Position Estimation; Sensorless Drive;

fLanguage

English

Publisher

ieee

Conference_Titel

Electrical Machines and Systems, 2009. ICEMS 2009. International Conference on

Conference_Location

Tokyo

Print_ISBN

978-1-4244-5177-7

Electronic_ISBN

978-4-88686-067-5

Type

conf

DOI

10.1109/ICEMS.2009.5382874

Filename

5382874