TY - NEWS
TI - Performance comparison between PWM and MPPT charge controllers
AU - Laguado, Miguel
AU - Luna Paipa, Eduardo Andres
AU - Bustos Marquez, Luis Fernando
AU - Sepúlveda, Sergio
AB - Charge controllers are implemented in several
electronic systems to protect and control the charge and discharge
rates of a battery; for off-grid Photovoltaic (PV) systems, there are
two types of technologies, Pulse Width Modulation (PWM) and
Maximum Power Point Tracking (MPPT). In this work, we
compared two charge controllers in PV systems with the same
technical specifications in order to determine the behavior of each
of them under similar environmental conditions. The
implementation of both charge controllers was based on firmware
and hardware with original designs, using PWM and MPPT
technologies. Both PV systems are composed of the charge
controller, a 30 W solar panel and a 12 V – 18 Ah battery; in the
experimental tests we measured the voltage and current in the
panel and the battery in charge and discharge processes, observing
that the MPPT controller has a higher average efficiency than the
PWM controller, elucidating that the type of technology used in
the charge controller has a direct impact on the efficiency, even
under unfavorable conditions of solar radiation and
environmental temperature. The PWM controller is an option of
acceptable efficiency and lower price in relation to the MPPT
controller. In the implementation of both controllers we calculated
similar periods of autonomy.
DA - 2019-03
KW - Charge controller
KW - Maximum Power Point Tracking
KW - Micro-controller
KW - Off-grid PV Systems
KW - Pulse Width Modulation
KW - Controlador de carga
KW - Microcontrolador
KW - Modulación por ancho de pulsos
KW - Seguidor de Punto de Máxima Potencia
KW - Sistema Fotovoltaico Autónomo
PB - Scientia et Technica
UR - https://repositorio.ufps.edu.co/handle/ufps/952
ER -