High power cycloconverter for mining applications: Practical recommendations for operation, protection and compensation

Author

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

Author_Institution

Univ. de Concepcion, Concepción, Chile

fYear

2013

fDate

6-11 Oct. 2013

Firstpage

1

Lastpage

7

Abstract

This paper presents practical aspects related with the operation, compensation and protection of high power cycloconverters used in mining industry. Practical recommendations related with start-up, operation characteristics and un-expected shut-down process is described. Fuseless characteristics of modern cycloconverters are also discussed. Relevant current waveforms associated with the starting of a 20 MW synchronous motor SAG mill drive are presented, as well as current and voltage waveforms during a cycloconverter commutation failure.

Keywords

commutation; compensation; grinding machines; milling machines; mining industry; power convertors; synchronous motor drives; compensation; current waveform; fuseless characteristics; high power cycloconverter commutation failure; mining industry; power 20 MW; protection; synchronous motor SAG mill drive; unexpected shut-down process; voltage waveform; Commutation; Frequency conversion; Harmonic distortion; Mining industry; Power conversion; Protective relaying; Reactive power; AC-AC power conversion; Thyristor converters; harmonic distortion; protective relaying; reactive power; synchronous motor drives;

fLanguage

English

Publisher

ieee

Conference_Titel

Industry Applications Society Annual Meeting, 2013 IEEE

Conference_Location

Lake Buena Vista, FL

ISSN

0197-2618

Type

conf

DOI

10.1109/IAS.2013.6682572

Filename

6682572