Design of a peripheral interface controller based MPPT charge controller

Abstract

This paper presents a smart charge controller (SCC) that can extract maximum power from solar panel and could make instant decision to protect the system. In the same time the designed controller can control high voltage disconnect (HVD)-reconnect, and low voltage disconnect (LVD)-reconnect. An improved maximum power point tracking (MPPT) is achieved through a Peripheral interface controller (PIC) based Perturb and Observe (P&O) algorithm. Additionally, light emitting diode (LED) used as indicator and a display is featured to show the system status. A blue-tooth device is used to work it as a data logger to monitor system status by smart phone or Laptop. Furthermore, this SCC is developed to increase the efficiency with low cost. Experimented highest efficiency 99% is recorded within the cost of BDT 2050 taka only.