Title :
Fuzzy approach for reliability analysis of PMU
Author :
Ghosh, Sudip ; Das, S. ; Ghosh, Debashis ; Mohanta, Dusmanta Kumar
Author_Institution :
Dept. of Electr. & Electron. Eng., Birla Inst. of Technol., Ranchi, India
Abstract :
The phenomenal increase of consumption of power in recent times has led to a paradigm shift of conventional power system towards smart grid. In particular phasor measurement units (PMU) have been instrumental for linking of sprawling network through wide-area measurement system (WAMS). Thus, the failure of PMU will lead to catastrophic outage and severe blackout in the power system. In this paper, the reliability modeling of PMU has been done using Markov process. Then, the reliability parameters (failure rate and repair rate) are calculated using symmetrical triangular membership function for type-1 fuzzy reliability analysis. The case studies corroborate the efficacy of type-1 fuzzy sets to take into account uncertainty related to membership function.
Keywords :
Markov processes; fuzzy systems; phasor measurement; power grids; power system faults; power system reliability; Markov process; PMU; WAMS; failure rate; fuzzy approach; phasor measurement units; power consumption; power system blackout; power system outage; repair rate; smart grid; symmetrical triangular membership function; type-1 fuzzy reliability analysis; wide-area measurement system; Fuzzy sets; Maintenance engineering; Markov processes; Phasor measurement units; Power system reliability; Reliability; Uncertainty; Fuzzy sets; phasor measurement unit (PMU); reliability; wide-area measurement system (WAMS);
Conference_Titel :
Environment and Electrical Engineering (EEEIC), 2014 14th International Conference on
Conference_Location :
Krakow
Print_ISBN :
978-1-4799-4661-7
DOI :
10.1109/EEEIC.2014.6835852
