Drive induced torque disturbances in brushless rate servos

Author

Anticole, Robert B.

Author_Institution

Contraves USA, Pittsburgh, PA, USA

fYear

1990

fDate

7-12 Oct. 1990

Firstpage

1903

Abstract

The torque disturbances caused by imperfections in a permanent magnet brushless sinusoidal motor and sinusoidal power amplifier are discussed, and the major sources of disturbances are quantified. Brushless rate servos are shown to contain many new sources of torque disturbances, in addition to the disturbances produced by brush type rate servos. The imperfections are harmonic error, phase error, offset, quantization, and unequal magnitudes. These disturbances have magnitudes in the range of 0.01 to 5% of peak torque and are of interest in rate servos with part-per-million instantaneous rate stability requirements.<>

Keywords

electric drives; harmonics; machine control; machine theory; permanent magnet motors; power amplifiers; servomotors; stability; torque; brushless rate servos; harmonic error; machine theory; offset; permanent magnet brushless sinusoidal motor; phase error; quantization; servomotors; sinusoidal power amplifier; stability; torque disturbances; unequal magnitudes; Brushes; Brushless motors; Drives; Permanent magnet motors; Power amplifiers; Quantization; Servomechanisms; Servomotors; Stability; Torque;

fLanguage

English

Publisher

ieee

Conference_Titel

Industry Applications Society Annual Meeting, 1990., Conference Record of the 1990 IEEE

Conference_Location

Seattle, WA, USA

Print_ISBN

0-87942-553-9

Type

conf

DOI

10.1109/IAS.1990.152447

Filename

152447