Abstract:   The use of Concrete beams reinforced with a combination of fiber reinforced polymer (FRP) and steel bars has increased dramatically in recent years, due to improvement in strength and flexural ductility simultaneously. In this paper, we proposed a new equation for estimating the effective moment of inertia of hybrid FRP-steel reinforced concrete (RC) beams on the basis of the...

This paper presents a control strategy for fuel cell/energy storage power generation system during voltage sag conditions. The hybrid DC power sources are connected to grid using power electronic converters include DC-DC converter and grid connected voltage source inverter. The power from hybrid power sources is controlled during voltage sag by designing of control strategy for DC-DC converter....

Ships play the major role in bulk transportation and they need their special energy system. This paper proposes a stochastic programing method for optimal sizing of a hybrid ship power system with energy storage system (ESS), photovoltaic power (PV) and diesel generator. To account for uncertainties, in this study a two-stage stochastic mixed-integer non-linear programing is used to model the o...

A Power System consists of the generating machines and transmission network in which the generating machine includes turbine, alternator and excitation system. Every synchronous generator has rotating rotor which has some inertia that depends upon the stored rotating energy in the system. There are various types of disturbances which are occurring on the power system. A stable power system shou...

The use of geothermal energy and its associated technologies has been increasing worldwide. However, there has been little paradigmatic research conducted in this area. This paper proposes a systematic methodology to research the development trends for the sustainable development of geothermal energy. A novel data analysis system was created to research the geothermal energy utilization trends,...

As the traditional generation is gradually replaced by inverter-based resources, a lack of rotational inertia now common issue modern power systems, which leads to an increasingly larger rate change frequency (RoCoF) following contingencies and may result in collapse. crucial index security stability accurate estimation RoCoF can be foundation for development advanced operations control techniq...