Abstract—This paper presents the dynamic modeling and the
simulation results of a renewable energy based hybrid power
generation system. In order to meet sustained load demands
during varying natural conditions, different renewable energy
sources need to be integrated with each other. The paper
focuses on the combination of solar cell (SC), wind turbine
(WT), hydro turbine (HT), fuel cell (FC) and vanadium redox
flow battery (VRB) systems for power generation. As the wind
turbine output power varies with the wind speed, the hydro
turbine output power with the water speed and the solar cell
output power with both the ambient temperature and radiation,
a FC system with an UC bank and a VRB system can be
integrated to store excess wind, hydro and solar energies under
all conditions. Dynamic modeling of various components of this
isolated system is presented. Transient responses of the system
to step changes in the load, ambient temperature, radiation,
wind speed and water speed in a number of possible situations
are studied. The results show that the proposed hybrid power
system can tolerate the rapid changes in natural conditions and
suppress the effects of these fluctuations on the voltage within
the acceptable range.
Index Terms—Hydro turbine, wind turbine, vanadium redox flow battery, fuel cell, hybrid generation system.
H. C. Chen is with the Electrical engineering Department, National Chin-Yi University of Technology, Taichung, 41107 Taiwan (e-mail: firstname.lastname@example.org).
P. H. Chen is with the Electrical Engineering Department, St. John’s University, Taipei, 25135 Taiwan (e-mail: email@example.com).
Cite:Hung-Cheng Chen, Po-Hung Chen, Long-Yi Chang, and Wei-Xin Bai, "Stand-Alone Hybrid Generation System Based on Renewable Energy," International Journal of Environmental Science and Development vol. 4, no. 5, pp. 514-520, 2013.