High-Power Cycloconverter for Mining Applications: Practical Recommendations for Operation, Protection, and Compensation

Author

Aravena, Pablo A. ; Moran, Luis A. ; Burgos, Rolando ; Astudillo, Pablo ; Olivares, Cristhian ; Melo, David A.

Author_Institution

Univ. de Concepcion, Concepcion, Chile

Volume

51

Issue

1

fYear

2015

fDate

Jan.-Feb. 2015

Firstpage

82

Lastpage

91

Abstract

This paper presents practical aspects related with the operation, compensation, and protection of high-power cycloconverters used in the mining industry. Practical recommendations related with startup, compensation requirements, operational characteristics, and unexpected shutdown process are described. Fuseless characteristics of modern cycloconverters are also discussed. Relevant current waveforms associated with the operation of a 20-MW synchronous motor semiautogenous grinding mill drive are presented, as well as current and voltage waveforms under fault operating conditions.

Keywords

cycloconvertors; grinding; mining industry; synchronous motors; compensation requirements; high-power cycloconverter; mining industry; operational characteristics; power 20 MW; synchronous motor semiautogenous grinding mill drive; unexpected shutdown process; Commutation; Harmonic analysis; Modulation; Power harmonic filters; Reactive power; Synchronous motors; Thyristors; AC???AC power conversion; harmonic distortion; protective relaying; reactive power; synchronous motor drives; thyristor converters;

fLanguage

English

Journal_Title

Industry Applications, IEEE Transactions on

Publisher

ieee

ISSN

0093-9994

Type

jour

DOI

10.1109/TIA.2014.2327155

Filename

6823105