Title :
An efficiency improvement boost converter circuit for photovoltaic power system with maximum power point tracking
Author :
Ratsame, Chamnan ; Tanitteerapan, Tanes
Author_Institution :
Dept. of Electr. Eng. Educ., KMUTT, Bangkok, Thailand
Abstract :
This paper deals with the design and experimental implementation of a maximum power point tracking (MPPT) for photovoltaic system, which is a DC-DC boost converter operating in continuous conduction mode (CCM). The converter is able to draw maximum power from the PV system for a given irradiation level by adjusting the duty cycle of converter. Analytical models are built for the PV system and converter on the basis of the data sheet of manufacturer and the principle of energy conservation. The control technique, implement with a single-chip microcontroller MC 56F8323EVM, is based on the P&O method. From the result obtained it can be concluded that the MPPT can increase the overall efficiency of the system for 94.5 % under different atmospheric condition.
Keywords :
energy conservation; maximum power point trackers; microcontrollers; photovoltaic power systems; power generation control; DC-DC boost converter; MC 56F8323EVM; boost converter circuit; continuous conduction mode; energy conservation; irradiation level; maximum power point tracking; photovoltaic power system; single-chip microcontroller; Arrays; Degradation; Insulation life; Photovoltaic systems; Radiation effects; Voltage control; PI controller; Perturbation and Observation Algorithm; Photovoltaic Maximum Power Point Tracking;
Conference_Titel :
Control, Automation and Systems (ICCAS), 2011 11th International Conference on
Conference_Location :
Gyeonggi-do
Print_ISBN :
978-1-4577-0835-0
