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Performance of a self-commutated BTB HVDC link system under a single-line-to-ground fault condition
- Source :
- IEEE Transactions on Power Electronics. Jan, 2003, Vol. 18 Issue 1, p278, 8 p.
- Publication Year :
- 2003
-
Abstract
- This paper deals with a self-commutated back-to-back (BTB) high-voltage direct-current (HVDC) link system for the purpose of power flow control and/or frequency change in transmission systems. Each BTB unit consists of two sets of 16 three-phase voltage-source converters, and their ac terminals are connected in series each other via 16 three-phase transformers. Hence, the BTB unit uses totally 192 switching devices capable of achieving gate commutation. This results in a great reduction of voltage and current harmonics without performing PWM control. Simulation results verify the validity of the proposed system configuration and control scheme not only under a normal operating condition but also under a single-line-to-ground fault condition. Index Terms--BTB HVDC link, multiconverters, power flow control, single-line-to-ground fault, unit capacitance constant.
Details
- Language :
- English
- ISSN :
- 08858993
- Volume :
- 18
- Issue :
- 1
- Database :
- Gale General OneFile
- Journal :
- IEEE Transactions on Power Electronics
- Publication Type :
- Academic Journal
- Accession number :
- edsgcl.99988768