期刊名称:International Journal of Innovative Research in Science, Engineering and Technology
印刷版ISSN:2347-6710
电子版ISSN:2319-8753
出版年度:2014
卷号:3
期号:9
页码:16169
DOI:10.15680/IJIRSET.2014.0309054
出版社:S&S Publications
摘要:This paper describes a design procedure for a Grey ANFIS based power system stabilizer (GrANFISPSS)and investigates their robustness for a multi-machine power system. Speed deviation of a machine and itsderivative are chosen as the input signals to the GrANFIS-PSS. A four-machine and a two-area power system is used asthe case study. Computer simulations for the test system subjected to transient disturbances i.e. a three phase fault, werecarried out and the results showed that the proposed controller is able to prove its effectiveness and improve the systemdamping when compared to a conventional lead-lag based power system stabilizer controller. The simulation resultshows that the GrANFIS-PSS can be designed to achieve good performance merely using the combination of Greyprediction and Adaptive Neuro-Fuzzy Inference System (ANFIS). GrANFIS-PSS is designed to damp out the lowfrequency local and inter-area oscillations of the Multi-machine power system. By applying this GrANFIS-PSS to thepower system the damping of inter-area modes of oscillations in a multi-machine power system is handled properly.The effectiveness of the proposed GrANFIS-PSS is demonstrated on two area four machine power system (Kundursystem), which has provided a comprehensive evaluation of the learning control performance. Finally, several fault andload disturbance simulation results are presented to stress the effectiveness of the proposed GrANFIS-PSS in a multimachinepower system and show that the proposed intelligent controls improve the dynamic performance of theGrANFIS-PSS and the associated power network
关键词:Grey Prediction; Power system oscillations; linear models; ANFIS