Research And Design Of Photovoltaic System Of The Green Building

With the increasingly serious global environmental pollution and energy crisis, the research on the application of clean energy has become a concerning subject of the world. Nowadays, the photovoltaic power generation technology is becoming more and more mature, and the application of the photovoltaic power generation system has been brought into the category of the green building evaluation system in China. However, there is not a relatively complete system for electrical design methods, which is used for combination of photovoltaic power generation and construction. In this paper, the electrical design method of photovoltaic power generation system in green building is studied, and the research is carried out from the following aspects:1. Analysis of relevant theory of photovoltaic power generation system in green building. First of all, the working principle and electrical performance of photovoltaic battery, inverter, controller, battery are analyzed; then make the comparison of different types of photovoltaic power generation system characteristics and point out their applicable environment. Finally, study by the professional view of building and construction and proposes three different design methods for combination of photovoltaic system and building.2. Electrical design method of photovoltaic power generation system in building. This is the key part of this paper. Firstly, contents and principles of PV power system electrical design are proposed, which provides ideas for study of design method. Secondly, analyze design method of each part of the system deeply and study components association of PV array, coupling arrangement design, matching design of inverters and battery controller, which controls charge and discharge, as well as design of distribution system. According to the voltage difference of access point, 3 schemes used for grid connection are put forward. Finally, analyze and propose adaptive performance optimization strategy of photovoltaic power generation system, and analyzed deeply from the aspects that power generation capacity of the system and improving the quality3. Case analysis of electrical design of photovoltaic power generation system in building. This is the theoretical part of this paper. Under the premise of the design method of photovoltaic power generation system in the second and third chapter, analyze the demand and of the climate environment according to the engineering in the first place, and optimize the design of photovoltaic power generation system afterwards. Use PVsyst software to simulate and forecast power generation in this engineering and the simulation results show that the design of photovoltaic power system in building can not only has obvious energy saving effect, but also achieve the goal that green buildings generate energy. In the design of photovoltaic power generation system in green building, the proposed design method and the optimization strategy in this paper are feasible.