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Load Shedding based on Fuzzy Logic and AHP Algorithm

Operation power system stability is always one of the key benefits relating to economic indicators - techniques. When all the available controls cannot maintain the stable frequency
of electrical systems, load shedding will be used as a last resort to restore the limited frequency norms and minimize the loss of power and load. This paper proposed the Analytic Hierarchy Process algorithm (AHP) and fuzzy logic algorithm to determine the weight of the load in the system and select appropriate control strategy corresponding to the load levels and different frequencies. The weights of the load nodes were calculated by AHP algorithm to determine the priority order of the load nodes in the system, the low weighted loads will be shed before. The load profile fuzzy and frequency fuzzy help the system reduce the number of control strategy when the problem occurs corresponding to the load levels and different frequencies. It contributes to simplifying the operation, reducing power to shed and the recovery time of the system more quickly when the problem occurs. The effectiveness of the proposed method was demonstrated through the experiment of load shedding on the IEEE 37-bus system by software PowerWorld and simulation results proved the effectiveness of the proposed method.

Từ khóa: Power system stability, Load shedding, AHP, Fuzzy logic.

9 p ovanketv 04/06/2018 475 1

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