Title :
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
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;
Journal_Title :
Industry Applications, IEEE Transactions on
DOI :
10.1109/TIA.2014.2327155
