| At present, the two concepts: the people most concerned about energy and the environment, especially in recent years many places haze phenomena increased year by year, people have to pay attention to our living environment, promote our environmental protection consciousness, the concept of "green" has become a household name, of course, green energy to support the focus of attention. Because solar have green pollution-free, widely distributed, continuous etc, so the world is now watching. So how do you really efficient use of solar energy has become a focus in the study of human beings. So the design of a highly efficient charge and discharge controller is more and more important. This paper USES microcontroller control mode, can fast tracking MPPT points at the same time, combined with high efficiency,general factors such as the design of a solar charge controller.Article MPPY principle are described in detail, and introduced from the aspects of their respective advantages and disadvantages of four kinds of MPPT algorithm.Paper to solar power system for whole, respectively discusses the storage battery,solar panels, drive circuit, converting circuit and charging circuit, put some circuit,controller and so on several parts. According to the actual situation proposed the hardware circuit design, considering the day and night, on the basis of the traditional MPPT using an improved MPPT method. This article is divided into six parts, from the present situation analysis, the long-term development, etc, this paper is composed of two parts of hardware and software, finally, the article has carried on the summary and outlook. |
