TY - JOUR
T1 - Novel 20-MW downhill conveyor system using three-level converters
AU - Rodríguez, José
AU - Pontt, Jorge
AU - Alzamora, Gerardo
AU - Becker, Norbert
AU - Einenkel, Ottomar
AU - Weinstein, Alejandro
N1 - Funding Information:
Manuscript received September 19, 2001; revised January 7, 2002. Abstract published on the Internet July 15, 2002. This work was supported by the Chilean Research Fund CONICYT under Project 1010096 and Project 1990837 and the Research Department of the Universidad Técnica Federico Santa María. J. Rodríguez and J. Pontt are with the Department of Electronics, Universidad Técnica Federico Santa María, Valparaíso, Chile (e-mail: [email protected]; [email protected]). G. Alzamora is with Los Pelambres Mining Company, Santiago, Chile. N. Becker is with Siemens AG, Erlangen, Germany (e-mail: [email protected]). O. Einenkel is with Rheinbraun AG, Cologne, Germany. A. Weinstein was with the Department of Electronics, Universidad Técnica Federico Santa María, Valparaíso, Chile. He is now with On Technologies, Vina del Mar, Chile (e-mail: [email protected]). Publisher Item Identifier 10.1109/TIE.2002.803223.
PY - 2002/10
Y1 - 2002/10
N2 - This paper presents a very new drive system used to transport ore from the mine down to the concentrator plant in the copper mine "Los Pelambres". Eight 2500-kW motors are driven by three-level inverters with gate-turn-off thyristors (GTOs). A three-level active front end is used at the input side of each inverter. A GTO chopper is used to provide controlled electrical braking in case of line loss. The paper presents the requirements and alternatives for the drive system and the control strategies for the converters and the belt. A novel application of the selective harmonic elimination method is used to reduce the input current harmonics. Special attention is dedicated to the interaction with the electrical network. The most relevant features of the system are: 1) fuseless operation; 2) adjustable power factor; 3) reduced input current harmonics; 4) smooth transition between motoring and regenerating modes; and 5) 15 MW of regenerated power with more than six months of successful operation.
AB - This paper presents a very new drive system used to transport ore from the mine down to the concentrator plant in the copper mine "Los Pelambres". Eight 2500-kW motors are driven by three-level inverters with gate-turn-off thyristors (GTOs). A three-level active front end is used at the input side of each inverter. A GTO chopper is used to provide controlled electrical braking in case of line loss. The paper presents the requirements and alternatives for the drive system and the control strategies for the converters and the belt. A novel application of the selective harmonic elimination method is used to reduce the input current harmonics. Special attention is dedicated to the interaction with the electrical network. The most relevant features of the system are: 1) fuseless operation; 2) adjustable power factor; 3) reduced input current harmonics; 4) smooth transition between motoring and regenerating modes; and 5) 15 MW of regenerated power with more than six months of successful operation.
KW - Active front end
KW - Conveyor drives
KW - High-power drives
KW - Three-level inverters
UR - http://www.scopus.com/inward/record.url?scp=0036772457&partnerID=8YFLogxK
U2 - 10.1109/TIE.2002.803223
DO - 10.1109/TIE.2002.803223
M3 - Article
AN - SCOPUS:0036772457
SN - 0278-0046
VL - 49
SP - 1093
EP - 1100
JO - IEEE Transactions on Industrial Electronics
JF - IEEE Transactions on Industrial Electronics
IS - 5
ER -