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Focuses on hydraulic generator modeling in a transient simulation for a transformer transfer voltage due to a lightning surge on a transmission line from the perspective of an insulation design of a hydraulic generator station. Measurement of the transfer voltage of a generator; Three generator models; Inductance elements and capacitance elements.

A hybrid power system uses many wind turbine generators in isolated small islands. The output power of wind turbine generators is mostly fluctuating and has an effect on system frequency. In order to solve this problem, we propose a new power system using renewable energy in small, isolated islands. The system can supply high-quality power using an aqua electrolyzer, fuel cell, renewable energy; and diesel generator. The generated hydrogen by an aqua electrolyzer is used as fuel for a fuel cell. The simulation results are given to demonstrate the availability of the proposed system in this paper. [ABSTRACT FROM AUTHOR]