DocumentCode :
3141216
Title :
The new converter transformer´s short-circuit fault calculation based on phase-coordinate method
Author :
Zhao, Zhiyu ; Luo, Longfu ; Li, Yong ; Zhang, Jie ; He, Dajiang ; Shao, Pengfei ; Liu, Fusheng
Author_Institution :
Coll. of Electr. & Inf. Eng., Hunan Univ., Changsha, China
fYear :
2009
fDate :
15-18 Nov. 2009
Firstpage :
1
Lastpage :
5
Abstract :
The auto-compensation and harmonic shielding converter transformer, namely the new converter transformer, adopts the prolonged delta wiring in the secondary winding, and there is a tap between the common winding and the prolonged winding, which is connected with the inductive filters. Compared with the traditional converter transformer, the electrical connection in the new converter transformer is more complex. Based on the principle of phase-coordinate method and the actual design parameter of the new converter transformer, the mathematical models with various short-circuit faults are presented in this paper combined with the directed graph of the coupled circuit. Finally, the simulation results demonstrate that the short-circuit faults calculated by the phase-coordinate method is accurate and effective. The model can be selected flexibly in practical project and has universal significance in solving various actual engineering problems correlated with multi-transformers.
Keywords :
power convertors; power filters; power system harmonics; power transformers; short-circuit currents; transformer windings; delta wiring; harmonic shielding converter transformer; inductive filter; phase coordinate method; short circuit fault calculation; short circuit faults; Circuit faults; Coupling circuits; Educational institutions; HVDC transmission; Helium; Information filtering; Information filters; Mathematical model; Power harmonic filters; Wiring; Converter transformer; Short-circuit Fault; high-voltage direct current (HVDC); phase-coordinate method;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Electrical Machines and Systems, 2009. ICEMS 2009. International Conference on
Conference_Location :
Tokyo
Print_ISBN :
978-1-4244-5177-7
Electronic_ISBN :
978-4-88686-067-5
Type :
conf
DOI :
10.1109/ICEMS.2009.5382897
Filename :
5382897
Link To Document :
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