Household Photovoltaic Power Generation System And Intelligent Machine Research

Along with the rapid development of the world economy, growing demand for energy,fossil resources on the earth a lot of exploitation and consumption, oil, coal and other natural resources become more and more scarce, also cause serious pollution to the environment.Solar photovoltaic power generation is the most rapid development and Prospect of the most promising one of renewable energy industry. It is safe and reliable, less moving parts, low noise, convenient maintenance using long life, no consumption of fuel, the characteristics of high flexibility. Solar power system into millions of households is the trend of the times, in order to solve the residents of power load and reduce air pollution and human sustainable development has a profound significance.In this paper, we first introduce the basic principle of photovoltaic power generation, the basic characteristics of photovoltaic cells, while the introduction of household photovoltaic power generation system concept, structure and the type of installation. In this paper, a family with innovative ideas for the development of photovoltaic power generation system, to households with photovoltaic power generation system as the foundation, grid off grid can be switched, the use of wind power abandoned electrical and valley power for household energy storage equipment of power supply of the intelligent integrated machine system.Secondly, study of photovoltaic integrated intelligent machine system, introduce the composition and structure of intelligent integrated machine, describes the integrated intelligent machine realization principle of the function, including household photovoltaic grid connected from the principle of network switch, solar panel series parallel switching principle. Intelligent integrated machine core control parts of the STM32 microcontroller is introduced, includes MCU module and driving principle. STM32 MCU according to the control logic diagram, by driving relay to control switch circuit, photovoltaic integrated machine function.Then, in Shenyang COFCO Long Xi family households with photovoltaic system as the research object, through the study of actual PV projects to complete the entire household with separate design of a photovoltaic system. Investigation of resident power consumption, field of geographic and meteorological data, calculate the generating capacity and installed capacity. According to the actual prospecting, solar panels on the planning arrangement, in accordance with the provisions of the selection principle of collected information onmanufacturers. Analysis of photovoltaic project component selection, including selection of solar panels, inverter selection, wire selection. According to the conditions of the actual households, the photovoltaic grid power generation mode selection, determine the system types and components and the bracket installation. According to the project really Set the number of materials list, quote summary, while the Liaoning Province, according to the photovoltaic subsidy policy, economic analysis, calculate the payback period.Finally, according to the design of the households with photovoltaic project optimization analysis. Presents the user with the shadow of the photovoltaic power generation system influence power efficiency and thermal effect of slab problem. Through the installation of power optimizer automatically match the suitable relation of voltage and current, increase the generating capacity. At the same time, also can add micro inverter to replace the traditional inverter, followed by each micro inverter independent power, so that the maximum output power of the solar power system. The new lithium battery technology advantage, as future household photovoltaic system storage equipment, instead of a conventional battery, energy saving and environmental protection, sustainable development.