DocumentCode :
389882
Title :
The optimal allocation pattern of phase shifting transformers for unwinding parallel flows
Author :
Huang, Chung-Neng
Author_Institution :
Dept. of Vehicle Eng., Nat. Taipei Univ. of Technol., Taiwan
Volume :
1
fYear :
2002
fDate :
6-10 Oct. 2002
Firstpage :
68
Abstract :
This paper proposes a new method to determine the optimal allocation pattern of multiple phase shifting transformers (PSTs) for unwinding parallel flows. In the proposed method, the concept of co-tree in graph theory is used to determine the minimum number of PSTs required for the independent modulation of individual loop flows. Moreover, eigenanalysis is applied to find out the correlation between each allocation patterns of PSTs and corresponding power flow profiles. Consequently, the sensitivity of flow alteration vector to the input angle vector of PSTs can be characterized into a matrix. Whereas, by the sensitive matrix, the required control angles of each PST for unwinding parallel flows can be found precisely. As a result of the proposal, the optimal allocation pattern of PSTs is determined as which can unwind the specific parallel flows by minimum control angles against other patterns. The validity of the proposed method is confirmed through the simulation studies.
Keywords :
eigenvalues and eigenfunctions; graph theory; optimisation; phase shifters; power system planning; power transformers; transformer windings; trees (mathematics); co-tree; eigenanalysis; flow alteration vector; graph theory; input angle vector; minimum control angles; phase shifting transformers allocation pattern optimisation; simulation studies; unwinding parallel flows; Automotive engineering; Graph theory; Load flow; Load flow control; Optimal control; Power system control; Power system simulation; Proposals; Transformers; Vehicles;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Transmission and Distribution Conference and Exhibition 2002: Asia Pacific. IEEE/PES
Print_ISBN :
0-7803-7525-4
Type :
conf
DOI :
10.1109/TDC.2002.1178262
Filename :
1178262
Link To Document :
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