Title :
The effect of loading on reactive market power
Author :
De Souza, Antonio C Zambroni ; Alvarado, Fernando ; Glavic, Mevludin
Author_Institution :
Grupo de Eng. de Sistemas, EFEI, Itajuba, Brazil
Abstract :
The degree of market power (more precisely, the potential for market power obtained from a market concentration indicator such as HHI) increases as system stress increases. This paper illustrates the effect of system loading on the reactive power HHI for various locations. The paper also illustrates the use of sensitivity formulas to come up with measures intended to improve (reduce) the overall HHI of a system by judicious addition of reactive power resources. Better results in terms of reduction of market concentration as a result of reactive power are obtained when the voltage collapse characteristics of the system are considered. The concepts are illustrated using the 14-bus and 57 IEEE-test systems.
Keywords :
electricity supply industry; power system dynamic stability; reactive power; HHI; IEEE-test systems; market concentration indicator; market concentration reduction; reactive market power; sensitivity formulas; system loading; voltage collapse; Costs; Energy management; Power generation; Power measurement; Power supplies; Power system security; Power system simulation; Reactive power; Stress; Voltage control;
Conference_Titel :
System Sciences, 2001. Proceedings of the 34th Annual Hawaii International Conference on
Conference_Location :
Maui, HI, USA
Print_ISBN :
0-7695-0981-9
DOI :
10.1109/HICSS.2001.926287
