Design of Decentralized Power System Stabilizer for Multi-Machine Power System using Fast Output Sampling Feedback Technique
نویسنده
چکیده
Abstract—Power System Stabilizer (PSS) are added to excitation system to enhance the damping of electric power system during low frequency oscillations. Design of decentralized PSS for 4 machines with 10 buses using fast output sampling feedback is proposed. The nonlinear model of multi-machine system is linearized and linear state space model is obtained. A stabilizing state feedback gain is obtained. A decentralized fast output sampling feedback gain which realizes this state feedback gain is obtained using LMI approach. This method doesn’t require state of the system for feedback. It uses only the output for feedback. Thus it is easily implementable. Keywords— Power system stabilizer, multi-machine power system, fast output sampling feedback, decentralized control, small signal stability.
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