Overview
Simulation
procedure for the co-optimization of photovoltaic water pumping systems
ABSTRACT
Abstract:
Photovoltaic
(PV)-powered centrifugal water pumping systems have been modelled based on
field experience and analysis of long-term measured performance of several
installed PV-powered water pumping systems. This paper presents detailed
modelling of a PV array, an inverter, a three-phase induction motor, a
centrifugal pump, a well, a storage tank, an overflow controller, and an
integrated reverse osmosis desalination unit. The component models were
validated using both laboratory measurements and long-term monitored data. All
system components have been modelled separately, and the system was modelled in
TRNSYS. The models are capable of simulating grid-connected, diesel-powered, and
PV-powered water pumping systems, and can consider the following design and
operational variables: constant voltage tracking, voltage frequency modulation,
and maximum power point tracking algorithms; variable inverter frequency with variable
motor efficiency, variable inverter frequency with constant motor efficiency,
and constant inverter frequency with variable motor efficiency algorithms; and
variation in PV temperature
