Open AccessStabilization of Power Fluctuation of Renewable Energy Based on Hybrid Energy Storage System
Author(s) -
Xu Wang,
Xinyan Zhang,
Jiajun Zhang,
Lingli Yu,
Yang Yu
Publication year - 2020
Publication title -
iop conference series. materials science and engineering
Language(s) - English
Resource type - Journals
eISSN - 1757-899X
pISSN - 1757-8981
DOI - 10.1088/1757-899x/812/1/012002
Subject(s) - renewable energy , intermittent energy source , energy storage , wind power , pumped storage hydroelectricity , grid energy storage , computer science , distributed generation , power (physics) , electrical engineering , automotive engineering , environmental science , engineering , physics , quantum mechanics
As energy shortages become more prominent, renewable energy is widely exploited. Renewable energy sources such as wind energy and solar energy are affected by the non-uniformity and non-steadiness of the natural environment, resulting in fluctuations and randomness of output power. When incorporated into the grid, it will cause fluctuations in grid voltage and frequency, affecting the power quality of the grid. The energy storage system can be used as an energy buffering device to stabilize the grid-connected power to meet the grid-connected standard. A hybrid energy storage system is proposed to stabilize the fluctuation of renewable energy generation, and the energy storage control method and energy distribution method are given. Finally, using the actual data of a wind farm, the hybrid energy storage composed of hydrogen storage energy and supercapacitor energy storage is used to stabilize the wind power fluctuations. The simulation results verify the technical rationality and economic practicability of the proposed method.