Fuzzy-based voltage/reactive power scheduling for voltage security improvement and loss reduction

Inst. of Electr. Eng., Nat. Chung Cheng Univ., Chiayi
IEEE Transactions on Power Delivery (Impact Factor: 1.73). 05/2001; 16(2):319 - 323. DOI: 10.1109/61.915501
Source: IEEE Xplore


This paper presents a new approach using fuzzy set theory for
voltage and reactive power control of power systems. The purpose is to
find a solution which takes both voltage security enhancement and loss
reduction into account for an electric power system. The approach
translates violation level of buses voltage and controlling ability of
controlling devices into fuzzy set notations using a linearized model. A
feasible solution set which achieves voltage improvement is first
attained using the max-min operation of fuzzy sets, the final solution
which takes power loss reduction into account is then determined
employing the min-operation on the feasible solution set previously
obtained. A modified IEEE 30-bus test system is used to demonstrate the
application of the proposed approach. Simulation results show that the
approach is efficient, simple, and straightforward

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