Reactive-power compensation of coal mining excavators by using a new-generation STATCOM

Date

2007-01-01

Author

Bilgin, Hazim Faruk
Ermiş, Muammer
Kose, K. Nadir
Cadirci, Isik
Acik, Adnan
Demirci, Turan
Terciyanli, Alper
Kocak, Cetin
Yorukoglu, Mustafa

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This paper deals with the development and implementation of a current-source-converter-based static synchronous compensator (CSC-STATCOM) applied to the volt-ampere-reactive (VAR) compensation problem of coal mining excavators. It is composed of a +/- 750-kVAR full-bridge CSC with selective harmonic elimination, a low-pass input filter tuned to 200 Hz, and a Delta/Y-connected coupling transformer for connection to medium-voltage load bus. Each power semiconductor switch is composed of an asymmetrical integrated gate commutated thyristor (IGCT) connected in series with a reverse-blocking diode and switched at 500 Hz to eliminate 5th, 7th, 11th, and 13th current harmonics produced by the CSC. Operating principles, power stage, design of dc link, and input filter are also described in this paper. It has been verified by field tests that the developed STATCOM follows rapid fluctuations in nearly symmetrical lagging and leading VAR consumption of electric excavators, resulting in nearly unity power factor on monthly basis, and the harmonic current spectra in the lines of CSC-STATCOM at the point of common coupling comply with the IEEE Std. 519-1992.

Subject Keywords

Current-source converter (CSC), Harmonic elimination, Power quality, Static VAR compensator (SVC)

URI

https://hdl.handle.net/11511/30004

Journal

IEEE TRANSACTIONS ON INDUSTRY APPLICATIONS

DOI

https://doi.org/10.1109/tia.2006.887308

Collections

Graduate School of Natural and Applied Sciences, Article

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Citation Formats

H. F. Bilgin et al., “Reactive-power compensation of coal mining excavators by using a new-generation STATCOM,” IEEE TRANSACTIONS ON INDUSTRY APPLICATIONS, pp. 97–110, 2007, Accessed: 00, 2020. [Online]. Available: https://hdl.handle.net/11511/30004.