High frequency carrier PWM inverter by static induction (SI) thyristor

Author

Sugimoto, O. ; Koga, T. ; Sugawara, S. ; Hayashi, H. ; Nozaki, T.

Author_Institution

Kansai Electr. Power Co. Inc., Hyogo, Japan

fYear

1988

fDate

11-14 April 1988

Firstpage

455

Abstract

The authors describe test-fabricated 20 kHz carrier frequency PWM inverters with static induction thyristors, which have an output of 200 V, 30 kVA at single phase and 60 Hz. The motivation was to improve the control characteristics and reduce the noise of PWM inverters applicable to uninterruptible power supplies and motor drives. The inverters are characterized by instantaneous value control of output voltage (using a minor current loop) and the use of a direct digital control system consisting mainly of digital signal processors. A detailed description of the inverter is given, followed by a brief discussion of test results and the applications of the unit.<>

Keywords

digital control; invertors; power supplies to apparatus; pulse width modulation; thyristor applications; 20 kHz; 200 V; 30 kVA; 60 Hz; HF carrier; PWM inverter; control characteristics; digital signal processors; direct digital control system; minor current loop; motor drives; noise; power supplies; static induction thyristors; test results; uninterruptible power supplies; voltage control; Control systems; Frequency; Motor drives; Noise reduction; Phase noise; Pulse width modulation inverters; Testing; Thyristors; Uninterruptible power systems; Voltage control;

fLanguage

English

Publisher

ieee

Conference_Titel

Power Electronics Specialists Conference, 1988. PESC '88 Record., 19th Annual IEEE

Conference_Location

Kyoto, Japan

Type

conf

DOI

10.1109/PESC.1988.18167

Filename

18167