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Coordination of Excitation and Governing Control Based on Fuzzy Logic

By Taiyou Yong and Robert H. Lasseter


Abstract: In deregulated power systems, competition could push the system near its security limit. The issue of power system stability is becoming more crucial. The excitation and governing controls of generator play an important role in improving the dynamic and transient stability of power system. Typically the excitation control and governing control are designed independently. In this paper, we present a fuzzy logic based method for the excitation control and governing control. Fuzzy logic is applied to generate two compensating signals to modify the controls during system disturbances. A single machine to infinite bus system is applied in simulation. The oscillation of internal generator angles is observed to indicate the good performance of proposed control scheme. Key words: Power system, Transient stability, Fuzzy logic, Excitation and governing control

Year: 2013
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