Abstract:
In this paper, two control strategies involving
“continuous” and “ON/OFF” operation of the diesel generator in
the battery-integrated hybrid system are developed, implemented
and compared. The main purpose of these modeled controlled
strategies is to minimize the diesel generator operation cost in
standalone electricity generation processes. The simulations have
been performed using “fmincon” for the continuous operation
and “intlinprog” for the ON/OFF operation strategy
implemented in Matlab. A rural household and a base
transceiver station have been used as case studies; and the daily
operation cost obtained are compared to the scenario where the
diesel generator is used alone to supply the same load demand.
Sensitivity analyses have been conducted on the battery control
settings as key parameters to find how changes in these
parameters do impact the daily operation cost of the hybrid
system. The results show that using the developed optimal energy
dispatch models, significant fuel saving can be achieved
compared to the case where the diesel is used alone to supply the
same load requirements.
