Title :
Optimal Transmission Switching With Contingency Analysis
Author :
Hedman, Kory W. ; O´Neill, Richard P. ; Fisher, Emily Bartholomew ; Oren, Shmuel S.
Author_Institution :
Univ. of California at Berkeley, Berkeley, CA, USA
Abstract :
In this paper, we analyze the N-1 reliable dc optimal dispatch with transmission switching. The model is a mixed integer program (MIP) with binary variables representing the state of the transmission element (line or transformer) and the model can be used for planning and/or operations. We then attempt to find solutions to this problem using the IEEE 118-bus and the RTS 96 system test cases. The IEEE 118-bus test case is analyzed at varying load levels. Using simple heuristics, we demonstrate that these networks can be operated to satisfy N-1 standards while cutting costs by incorporating transmission switching into the dispatch. In some cases, the percent savings from transmission switching was higher with an N-1 DCOPF formulation than with a DCOPF formulation.
Keywords :
integer programming; power generation dispatch; power generation economics; power generation planning; power generation reliability; power transmission economics; power transmission planning; power transmission reliability; binary variables; contingency analysis; dc optimal dispatch; mixed integer program; optimal transmission switching; power generation dispatch; power system economics; power system reliability; power transmission control; power transmission economics; transmission planning; Integer programming; power generation dispatch; power system economics; power system reliability; power transmission control; power transmission economics; transmission planning;
Journal_Title :
Power Systems, IEEE Transactions on
DOI :
10.1109/TPWRS.2009.2020530