Abstract:
This paper proposes an optimal energy management model for
a grid-connected micro-hydrokinetic pumped hydro storage
(MHK-PHS) system supplying the industrial load profile. The
aim of the study is to investigate the behavior of model when
minimizing the grid energy costs through power-flow control
variables and time-of-use (TOU) tariff scheme. The optimization
problem has been solved through the use of the linprog solver in
the MATLAB’s optimization toolbox for a period of 192 h as a means
of including week days and weekend days. The simulation results
show that the developed model can assist the onsite MHK-PHS
system to optimally reduce the electricity cost for the industrial
load profile. An 86% grid cost saving has been achieved through the
optimally managed MHK-PHS system.
