10.46243/jstj.2017.v2.i4.206 registered

In order to study uncertainty and intermittent into AC quantities delivered to other power systems [1], [2]. characteristics of wind power and wave power, this paper proposes Since the intermittent of renewable energy and DGS, bian integrated wind- and wave-power generation system fed to a directional DC/DC converters are usually necessary to feed power grid or connected with an isolated load using a DC micro grid. The studied integrated system consists of a wind-power the connected loads with smooth power [3]. generator, a wave-power generator, a bidirectional DC/DC In order to simulate a hybrid AC/DC micro grid system, converter, and a grid-tied inverter. An energy-storage device is photovoltaic and wind power generator models, doubly-fed connected to the DC side of the proposed DC micro grid through a induction generator (DFIG) model, and inverter model were bi-directional DC/DC converter. Both wind-and wave-power generation systems are modeled and simulated using the written established to simulate dynamic responses of the studied program based on MATLAB/Simulink. Steady-state and dynamic system in [4]. A practical low-voltage bipolar-type DC micro responses of the studied system under various operating conditions grid was constructed using a gas engine as the power source are carried out. To examine the fundamental operating characteristics of the proposed integrated system, a laboratory-scale while a bi-directional DC/DC converter shunting a platform is also established. The experimental results reveal that supercapacitor was utilized as an energy-storage device to the studied integrated system can maintain stable operation to balance the power demand of the studied system in [5]. supply power under different operating conditions using the Unexplored energy and resources in ocean such as marine proposed DC micro grid. energy, tidal energy, ocean thermal energy, ocean wave