Inverter nonlinearities and discrete-time vector current control

Author

Sepe, Raymond B. ; Lang, Jeffrey H.

Volume

30

Issue

1

fYear

1994

Firstpage

62

Lastpage

70

Abstract

This paper studies all-digital discrete-time vector current control loops containing a voltage fed invertor in series with a permanent-magnet synchronous motor. Normal operation of the typical pulse width modulating voltage fed inverter introduces nonlinear distortion into the voltage and the current waveforms of the motor. This paper focuses on both the causes and the attenuation of these disturbances using all-digital control. An effective, fully-digital current controller is developed and experimental results from a Motorola 68020 microprocessor based system are presented

Keywords

digital control; discrete time systems; electric current control; invertors; microcomputer applications; permanent magnet motors; power engineering computing; pulse width modulation; synchronous motors; Motorola 68020 microprocessor based system; digital current controller; digital discrete-time vector current control; feedback compensation; feedforward compensation; inverter nonlinearities; nonlinear distortion; open loop compensation; permanent-magnet synchronous motor; pulse width modulating voltage fed inverter; voltage fed invertor; AC motors; Attenuation; Control systems; Current control; Nonlinear distortion; Open loop systems; Pulse inverters; Pulse width modulation inverters; Synchronous motors; Voltage;

fLanguage

English

Journal_Title

Industry Applications, IEEE Transactions on

Publisher

ieee

ISSN

0093-9994

Type

jour

DOI

10.1109/28.273622

Filename

273622