Weiland M, Herold G (2011)
Publication Language: English
Publication Type: Conference contribution
Publication year: 2011
Pages Range: 402-406
Conference Proceedings Title: International Conference on Renewable Energies and Power Quality ICREPQ, Report 347
Event location: Las Palmas
DOI: 10.24084/repqj09.347
Line-commutated current converters operated in electrical power systems will work asymmetrically, if the system is not balanced. This asymmetrical operation causes non-characteristic harmonics in the currents and therefore a higher distortion level. As a high distortion level is always disadvantageous, it is worthwhile to find appropriate methods to lower the distortion level by reducing the amplitudes of these non-characteristic harmonics. In this paper, three-phase thyristor converters operated in systems with unbalanced AC-line short-circuit impedances are investigated. To achieve a competent and well-grounded understanding of the problem a suitable method of calculation has been developed. This method firstly offers the opportunity to calculate the operation of line-commutated current converters in an unbalanced three-phase system. Furthermore it offers the opportunity to optimize the operation of the unbalanced system. This optimization is done by balancing the systems operation and reducing the amplitudes of the non-characteristic harmonics using asymmetrical firing angles.
APA:
Weiland, M., & Herold, G. (2011). Investigation of Three-Phase Thyristor Converters under Generalized Impedance Unbalance. In International Conference on Renewable Energies and Power Quality ICREPQ, Report 347 (pp. 402-406). Las Palmas.
MLA:
Weiland, Manuel, and Gerhard Herold. "Investigation of Three-Phase Thyristor Converters under Generalized Impedance Unbalance." Proceedings of the International Conference on Renewable Energies and Power Quality ICREPQ 2011, Las Palmas 2011. 402-406.
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