A high quality microprocessor controlled ultrasonic PWM inverter for UPS applications

Author

Khan, M. Zafarullah ; Manning, Carlton Dudley

Author_Institution

Dept. of Electron. & Electr. Eng., Loughborough Univ. of Technol., UK

fYear

1989

fDate

26-29 Jun 1989

Firstpage

75

Abstract

A description is given of the implementation of a microprocessor-controlled three-phase PWM MOSFET inverter using an 18 kHz carrier frequency for UPS applications. Novel techniques have been used to overcome the problems inherent in microprocessor-controlled PWM generators. All control functions required by the inverter, including a proportional-integral algorithm, have been implemented with a single microprocessor. The inverter exhibits low total harmonic distortion and fast transient response

Keywords

insulated gate field effect transistors; invertors; microcomputer applications; power transistors; pulse width modulation; two-term control; uninterruptible power supplies; 18 kHz; PWM MOSFET inverter; UPS; carrier frequency; control; harmonics; microprocessor; proportional-integral algorithm; transient response; two-term control; Frequency; MOSFET circuits; Microprocessors; Pi control; Proportional control; Pulse width modulation; Pulse width modulation inverters; Total harmonic distortion; Transient response; Uninterruptible power systems;

fLanguage

English

Publisher

ieee

Conference_Titel

Power Electronics Specialists Conference, 1989. PESC '89 Record., 20th Annual IEEE

Conference_Location

Milwaukee, WI

Type

conf

DOI

10.1109/PESC.1989.48475

Filename

48475