Title :
Combined long-term and short-term access storage for sustainable energy system
Author :
Yu, Xiaolong ; Strunz, Kai
Author_Institution :
Dept. of Electr. Eng., Washington Univ., Seattle, WA
Abstract :
Although popular renewable energy sources based on solar or wind energy conversion are renewable, environmentally friendly and increasingly competitive in terms of cost, their intermittent availability results in problems. The output of power depends on the given solar radiation or wind speed, and the load following characteristics are poor. Local and wide area storage systems are discussed as a solution. The proposed concept consists of a stochastic source that is coupled via a DC bus with multilevel access storage and a grid interface. The multilevel access storage is a combination of long-term and short-term access storage that allows to compensate for the intermittent availability of power over a wide range of time constants. It is discussed how the coordinated operation of source and multilevel access storage can support the large-scale integration of renewable distributed sources into a sustainable energy system
Keywords :
distributed power generation; fuel cells; solar power; stochastic processes; sunlight; superconducting magnet energy storage; sustainable development; wind power; DC bus; distributed generation; fuel cell; grid interface; local area storage systems; long-term access storage; power electronics; renewable energy sources; short-term access storage; solar energy; solar radiation; stochastic source; superconducting magnetic energy storage; sustainable energy system; wide area storage systems; wind energy conversion; wind speed; Energy storage; Fuel cells; Large scale integration; Renewable energy resources; Solar power generation; Solar radiation; Stochastic processes; Velocity measurement; Wind energy; Wind speed;
Conference_Titel :
Power Engineering Society General Meeting, 2004. IEEE
Conference_Location :
Denver, CO
Print_ISBN :
0-7803-8465-2
DOI :
10.1109/PES.2004.1373217