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논문 기본 정보

자료유형
학술저널
저자정보
D.K.Sambariya (Rajasthan Technical University) Rajeev Gupta (Rajasthan Technical University)
저널정보
대한전기학회 Journal of Electrical Engineering & Technology Journal of Electrical Engineering & Technology Vol.5 No.3
발행연도
2010.9
수록면
503 - 510 (8page)

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This paper proposes the use of fuzzy applications to a 4-machine and 10-bus system to check stability in open conditions. Fuzzy controllers and the excitation of a synchronous generator are added. Power system stabilizers (PSSs) are added to the excitation system to enhance damping during low frequency oscillations. A fuzzy logic power system stabilizer (PSS) for stability enhancement of a multi-machine power system is also presented. To attain stability enhancement, speed deviation (Δω) and acceleration (Δ?) of the Kota Thermal synchronous generator rotor are taken as inputs to the fuzzy logic controller. These variables have significant effects on the damping of generator shaft mechanical oscillations. The stabilizing signals are computed using fuzzy membership functions that are dependent on these variables. The performance of the fuzzy logic PSS is compared with the open power system, after which the simulations are tested under different operating conditions and changes in reference voltage. The simulation results are quite encouraging and satisfactory. Similarly, the system is tested for the different defuzzification methods, and based on the results, the centroid method elicits the best possible system response.

목차

Abstract
1. Introduction
2. Multi-machine Power System Analysis
3. Fuzzy Logic PSS Structure
4. Selection of Input Signals of FLPSS
5. Membership Function
6. Rule Base
7. Location of Fuzzy PSS
8. Case Study
9. Conclusions
References

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