DocumentCode :
2502422
Title :
Evaluation and improvement of total transfer capability - A case study
Author :
Vyjayanthi, C. ; Thukaram, D.
Author_Institution :
Dept. of Electr. Eng., Indian Inst. of Sci., Bangalore, India
fYear :
2010
fDate :
20-23 Dec. 2010
Firstpage :
1
Lastpage :
6
Abstract :
With deregulation, the total transfer capability (TTC) calculation, which is the basis for evaluating available transfer capability (ATC), has become very significant. TTC is an important index in power markets with large volume of inter-area power exchanges and wheeling transactions taking place on an hourly basis. Its computation helps to achieve a viable technical and commercial transmission operation. The aim of the paper is to evaluate TTC in the interconnections and also to improve it using reactive optimization technique and UPFC devices. Computations are carried out for normal and contingency cases such as single line, tie line and generator outages. Base and optimized results are presented, and the results show how reactive optimization and unified power flow controller help to improve the system conditions. In this paper repeated power flow method is used to calculate TTC due to its ease of implementation. A case study is carried out on a 205 bus equivalent system, a part of Indian Southern grid. Parameters like voltage magnitude, L-index, minimum singular value and MW losses are computed to analyze the system performance.
Keywords :
load flow control; optimisation; power grids; power markets; power transmission economics; Indian southern grid; TTC calculation; UPFC device; available transfer capability evaluation; commercial transmission operation; inter-area power exchange; power market; reactive optimization; total transfer capability evaluation; unified power flow controller; Generators; Indexes; Limiting; Load flow; Optimization; Stability criteria; Transmission line measurements; L-index; repeated power flows; total transfer capability; unified power flow controller; voltage stability;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Power Electronics, Drives and Energy Systems (PEDES) & 2010 Power India, 2010 Joint International Conference on
Conference_Location :
New Delhi
Print_ISBN :
978-1-4244-7782-1
Type :
conf
DOI :
10.1109/PEDES.2010.5712405
Filename :
5712405
Link To Document :
بازگشت