Please use this identifier to cite or link to this item: http://localhost/handle/Hannan/179858
Title: Harmonic Elimination Using Parallel Delta-Connected Filtering Windings for Converter Transformers in HVDC Systems
Authors: Chonggan Liang;Jiazhu Xu;Longfu Luo;Yong Li;Qi Qi;Pingping Gao;Ying Fu;Yanjian Peng
Year: 2017
Publisher: IEEE
Abstract: In conventional HVDC systems where the harmonic filters and shunt capacitors are installed at the ac grid side, the converter transformers inevitably suffer the detrimental impacts caused by harmonic penetration. In this paper, combined with an inductive filtering method, a parallel delta-connected filtering winding scheme for 12-pulse converter transformer units is proposed to reduce the harmonic currents flowing through the transformers and, thus, to attenuate the harmonic effects on them. This paper describes the presented transformer configuration in terms of the wiring scheme of the 12-pulse converter transformer unit and corresponding flowing paths of different harmonic currents with the orders of 3,6n &x00B1; 1(n=1,3,5,.. .),11 and 13 in the filtering winding circuit. Then, the mechanism of the proposed scheme on harmonic suppression to the converter transformers is explained theoretically. In an attempt to validate the theoretical analysis, simulations based on PSCAD/EMTDC and experiments in a laboratory prototype system are performed to evaluate the harmonic eliminating performance of the proposed scheme.
URI: http://localhost/handle/Hannan/179858
volume: 32
issue: 2
More Information: 933,
941
Appears in Collections:2017

Files in This Item:
File SizeFormat 
7490356.pdf791.15 kBAdobe PDF
Title: Harmonic Elimination Using Parallel Delta-Connected Filtering Windings for Converter Transformers in HVDC Systems
Authors: Chonggan Liang;Jiazhu Xu;Longfu Luo;Yong Li;Qi Qi;Pingping Gao;Ying Fu;Yanjian Peng
Year: 2017
Publisher: IEEE
Abstract: In conventional HVDC systems where the harmonic filters and shunt capacitors are installed at the ac grid side, the converter transformers inevitably suffer the detrimental impacts caused by harmonic penetration. In this paper, combined with an inductive filtering method, a parallel delta-connected filtering winding scheme for 12-pulse converter transformer units is proposed to reduce the harmonic currents flowing through the transformers and, thus, to attenuate the harmonic effects on them. This paper describes the presented transformer configuration in terms of the wiring scheme of the 12-pulse converter transformer unit and corresponding flowing paths of different harmonic currents with the orders of 3,6n &x00B1; 1(n=1,3,5,.. .),11 and 13 in the filtering winding circuit. Then, the mechanism of the proposed scheme on harmonic suppression to the converter transformers is explained theoretically. In an attempt to validate the theoretical analysis, simulations based on PSCAD/EMTDC and experiments in a laboratory prototype system are performed to evaluate the harmonic eliminating performance of the proposed scheme.
URI: http://localhost/handle/Hannan/179858
volume: 32
issue: 2
More Information: 933,
941
Appears in Collections:2017

Files in This Item:
File SizeFormat 
7490356.pdf791.15 kBAdobe PDF
Title: Harmonic Elimination Using Parallel Delta-Connected Filtering Windings for Converter Transformers in HVDC Systems
Authors: Chonggan Liang;Jiazhu Xu;Longfu Luo;Yong Li;Qi Qi;Pingping Gao;Ying Fu;Yanjian Peng
Year: 2017
Publisher: IEEE
Abstract: In conventional HVDC systems where the harmonic filters and shunt capacitors are installed at the ac grid side, the converter transformers inevitably suffer the detrimental impacts caused by harmonic penetration. In this paper, combined with an inductive filtering method, a parallel delta-connected filtering winding scheme for 12-pulse converter transformer units is proposed to reduce the harmonic currents flowing through the transformers and, thus, to attenuate the harmonic effects on them. This paper describes the presented transformer configuration in terms of the wiring scheme of the 12-pulse converter transformer unit and corresponding flowing paths of different harmonic currents with the orders of 3,6n &x00B1; 1(n=1,3,5,.. .),11 and 13 in the filtering winding circuit. Then, the mechanism of the proposed scheme on harmonic suppression to the converter transformers is explained theoretically. In an attempt to validate the theoretical analysis, simulations based on PSCAD/EMTDC and experiments in a laboratory prototype system are performed to evaluate the harmonic eliminating performance of the proposed scheme.
URI: http://localhost/handle/Hannan/179858
volume: 32
issue: 2
More Information: 933,
941
Appears in Collections:2017

Files in This Item:
File SizeFormat 
7490356.pdf791.15 kBAdobe PDF