Interleaved buck-boost charger by using automatically selective technique between P&O and Lookup Table for novel MPPT application

Abstract

This paper shows the circuit and methodology of the new charger for tracking MPP on any level of irradiation by using Matlab Simulink Program. The circuit is the Interleaved Buck-Boost that is used to reduce output of ripple voltage and ripple current. The methodology is used and combined between P&O MPPT and Lookup Table MPPT. However, the P&O MPPT is the basic system to control the tracking of MPPT and record the values of both irradiation intensity and duty cycle in the Table. When the real value of irradiation intensity is under defined condition, the system operation will turn P&O MPPT to Lookup Table MPPT automatically. Therefore, the system operates MPPT quickly and solves the problem of the variation value of MPPT.