21-11-2012, 11:43 AM
Control of a Hybrid Energy System
Control of a Hybrid Energy.pdf (Size: 5.54 MB / Downloads: 100)
Introduction
Effective way to
combine multiple
renewable energy sources
What is a hybrid energy
system?
Wind
Solar
Tidal
Micro-Hydro
Etc.
Small wind less than 10kW
My research deals with micro small wind up to
1500watts and 1000 watts of solar
Most common for cabins, boats, peak shaving
systems in residential locations, and total power
production in developing nations
Background
Increasing demand for alternative power
Energy shortage
Power distribution problems
Kyoto Protocol
Rising cost of fossil fuel
Incentives
Green Movement
Current solutions
Controllers that perform one function
Controllers that can do both wind and solar
Can only combine small amount of solar
Not entirely reliable
Will only work with one brand of turbine
Typically wind companies have built in some solar control
Solar companies have no wind control
Problems
Many technical issues with hybrid systems
High variability in resource, e.g. wind, sun
Many components required
“Hybrid systems have a 65% or more failure rate,
with failures due to components failing, poor
maintenance, . . . .” (Vaughn C. Nelson, 2002)
Lack of monitoring of system
History logging
Remote communications
Conclusions
Effectively combined wind and solar
Increased power curve of wind turbine
Allowed significant addition of solar power
Increase reliability
Tracked history and made data portable
Increase in safety and usability