Power factor correction and harmonic mitigation in a thyristor controlled glass melter

Author

Sueker, K.H. ; Hummel, S.D. ; Argent, R.D.

fYear

1988

fDate

2-7 Oct. 1988

Firstpage

1118

Abstract

Severe disturbances to other plant functions resulting from operation of a new all-electric glass melting furnace in a manufacturing plant are discussed. The problem was traced to the thyristor controllers which regulated power to melter electrodes. Investigation showed severe distortion of the plant feeder-voltage waveform due to harmonic currents. Corrective measures consisted of installing a set of series-resonant harmonic traps and a high-pass filter on the 460 V feeder. Harmonic distortion of supply voltage was reduced from 5% to less than 1%, and power factor was improved.<>

Keywords

electric furnaces; glass industry; harmonics; high-pass filters; power factor correction; thyristor applications; 460 V; electric glass melting furnace; feeder-voltage waveform; harmonic currents; harmonic mitigation; high-pass filter; melter electrodes; power factor correction; series-resonant harmonic traps; thyristor controlled glass melter; Distortion measurement; Electrodes; Furnaces; Glass manufacturing; Harmonic distortion; Power factor correction; Power harmonic filters; Power system harmonics; Thyristors; Voltage;

fLanguage

English

Publisher

ieee

Conference_Titel

Industry Applications Society Annual Meeting, 1988., Conference Record of the 1988 IEEE

Conference_Location

Pittsburgh, PA, USA

Type

conf

DOI

10.1109/IAS.1988.25201

Filename

25201