Abstract
Design and Analysis of Fuzzy Logic based Power System Stabilizer
Highlights
Electrical power system is basically a dynamic system
PSS is added to the generator excitation system in order to provide a supplementary signal to excitation system and to extend the stability limit by modulating generator excitation which provides the positive damping torque to power swing mode[14,9,11]
Concept of 3 phase fault is introduced in the bus system having 10 distributed generators (DG) units
Summary
Electrical power system is basically a dynamic system. In this type of system disturbances occur constantly which causes generator angle and voltage to change. One of the most occurring stability problems arising from large electric power system is the low frequency oscillations of interconnected power systems These oscillations can be removed by connecting PSS with the associated generator. The time domain reaction with different cases namely without PSS and with different type of PSS are being investigated for synchronous machine and are compared with the proposed controller by Fuzzy logic based PSS controller [9-14] This comparison of control technique will demonstrate that the proposed technique have lower setting time and more robustness against parameter variations and external disturbances than the conventional controller which is shown in simulation result using IEEE 39 test bus system .It presents the effect of 3 phase fault on the network using proposed controlling PSS methods.
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