Control Simulation of Charge and Discharge in the Solar Photovoltaic Power Generation System

In the solar photovoltaic power generation system, the batteries in the total system cost of a large proportion. Battery´s life is greatly influenced by the cost of electricity in the whole system. In this paper, develop a simple battery protection programmer - charge and discharge protection. The design of the battery charge and discharge control and simulation is completed from 51 core SM8954A SCM, T6963C LCD controller and the collection plate driver with Keil-Cx51 PROTEUS development of software and simulation software, its main contents include: hardware, system design process modules, simulation and debugging. With the real-time detection implementation of the battery terminal voltage can be adequately protected. The main battery charging and discharging process of the on-line terminal voltage detection, had been extended battery life, improved the system of the economy.