Optimization Design of Independent Photovoltaic Power System

Abstract

Solar energy as a huge amount of renewable energy, the daily arrival of the earth's surface radiation energy equivalent to hundreds of millions of barrels of oil burning energy. Development and use of rich, vast solar energy, cannot produce or produce little pollution to the environment, solar energy is both the urgent need for future energy supplement, but also the basis of future energy structure. However, because the traditional do not pay much attention to the collocation of PV modules, resulting in a lot of waste, this paper presents a new optimization design method for the shortcomings of the previous system design methods. This paper summarizes the composition and operation of the PV system, and discusses the establishment of the mathematical model of each part. Including the solar radiation resource model, the best tilt model of the solar cell matrix, the solar cell square power generation model, the battery status model, the load model. On the basis of this, the paper takes the minimum energy loss of PV system as the principle, and studies the problem of maximum power point tracking and the selection of inverter circuit, which has certain practical application value