The Effect of Loading on Reactive Market Power
نویسندگان
چکیده
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.
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