This document summarizes a presentation about using variable speed diesel generators for synthetic storage. It discusses how variable speed generators can operate more efficiently than constant speed generators by matching generator output to fluctuating load demands. The presentation includes case studies of hybrid solar-diesel-battery microgrid projects in Malaysia, India, and Western Australia's Eco Resort that demonstrate fuel savings from variable speed control. It also shows typical load profiles and how battery storage can help maximize generator efficiency.
9. Typical load profiles
Peak demand is
observed around noon
time, due to increasing
air-conditioning,
refrigeration
Typical Load profile in
Northern Australia
Peak demand is during the evening -
domestic consumption for lighting ,
TV etc
At Low Loads loads during the night
time, the diesel consumes about 1.2
litre of diesel to produce one kWh!
During the peak load in the evening
the diesel generator may consume
only 0.3 litre for one kWh.
Typical Load Profiles
10. Typical Battery –Diesel Hybrid system
Design basis to run the DG in
optimum load
Capital and replacement cost
of battery is an issue
Energy loss in battery