scholarly journals Lifetime Estimation and Failure Risk Analysis in a Power Stage Used in Wind-Fuel Cell Hybrid Energy Systems

Electronics ◽  
2019 ◽  
Vol 8 (12) ◽  
pp. 1412 ◽  
Author(s):  
Sima Rastayesh ◽  
Sajjad Bahrebar ◽  
Amir Sajjad Bahman ◽  
John Dalsgaard Sørensen ◽  
Frede Blaabjerg
Keyword(s):  
Fuel Cell ◽  
Weibull Distribution ◽  
Cell Hybrid ◽  
Reliability Assessment ◽  
Energy Systems ◽  
Power Circuit ◽  
Hybrid Energy ◽  
Hybrid Energy Systems ◽  
Power Stage ◽  
Fuel Cell Hybrid

This paper presents a methodology based on the failure mode and effect analysis (FMEA) to analyze the failures in the power stage of wind-fuel cell hybrid energy systems. Besides, fault tree analysis (FTA) is applied to describe the probabilistic failures in the vital subcomponents. Finally, the reliability assessment of the system is carried out for a five-year operation that is guaranteed by the manufacturer. So, as the result, the reliability analysis proves that the metal oxide semiconductor field effect transistor (MOSFET) and electrolytic capacitor are the most critical components that introduce damages in the power circuit. Moreover, a comparative study on the reliability assessment by the exponential distribution and the Weibull distribution show that the B1 lifetime obtained by the Weibull distribution is closer to reality.

scholarly journals ENHANCING WIND/FUEL CELL HYBRID ENERGY SYSTEM

2013 ◽  
pp. 176-180
Author(s):  
PAVAN R. PADGHAN ◽  
P.K. KATTI
Keyword(s):  
Renewable Energy ◽  
Fuel Cell ◽  
Wind Turbine ◽  
Cell Hybrid ◽  
Renewable Energy Sources ◽  
Energy System ◽  
Sustained Load ◽  
Hybrid Energy System ◽  
Hybrid Energy ◽  
Fuel Cell Hybrid

This paper describe of a renewable energy based hybrid energy system with MATLAB implementation results. In order to meet sustained load demand during varying natural conditions, different renewable energy sources need to be integrated with each other. This paper focuses on the combination of wind/fuel cell hybrid energy system. As wind turbine output power varies with wind speed & FC systems can be integrated to ensure that the system performs under all conditions. The result show that the proposed hybrid energy system can be tolerate the rapid change in natural condition and suppress the effect of the fluctuation on the voltage wind turbine the acceptable range.

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