IMPLEMENTATION OF MPPT ALGORITHM ON PV PANEL USING PIC16F877 CONTROLLER

Shreyash Sharma, Maharshi Tikiwala, Ronak Dadhaniya

Abstract: This paper presents the design and practical implementation of a Boost-type power converter for Photovoltaic (PV) system for energy storage application based on Perturb and Observe Maximum Power Point Tracking (MPPT) algorithm. A Boost converter is used to regulate battery charging. The major drawbacks faced by the tracking algorithm in the conventional method of tracking is overcome by the strategic utilization of a properly controlled and programmed design of Peripheral Interface Controller which helps in achieving optimized output results of MPPT algorithm.. The system is controlled by a Peripheral Interface Controller (PIC) 16F877 controller by sensing the solar panel voltage and generating the Pulse Width Modulation (PWM) signal to control duty cycle of the boost converter. This type of microcontroller was chosen is best suited as it has the necessary features for the proposed design such as built-in Analog-to-Digital Converter (ADC), PWM outputs, low power consumption and low cost. Hardware results demonstrate the effectiveness and validity of the proposed system in order to attain satisfactory results from the method. This paper mainly focuses on the effective utilization of PIC controller in the implementation of the MPPT algorithm and its constructional features which help gain the appropriate and accurate results

Keywords: Photovoltaic system, Analog-to-Digital Converter, Peripheral Interface Controller, Maximum Power Point Tracking, Pulse Width Modulation, Boost-type power converter, Duty Cycle.

DOI: https://doi.org/10.15623/ijret.2015.0406009