Intelligent household microgrid system

Abstract

The invention relates to the solar panel installation technology field and especially relates to an intelligent household microgrid system. The system comprises an energy storage module, a direct-current voltage reduction system, an inversion system, an intelligent photovoltaic module, an intelligent confluence system and an energy self-adaptive control system. The intelligent photovoltaic modulecomprises a plurality of photovoltaic module arrays and a power synergy unit is connected with each photovoltaic module array, and an output end of the power synergy unit is connected to the intelligent confluence system at the same time. The intelligent confluence system realizes maximum energy efficiency ratio output of each photovoltaic module array according to the output of the power synergyunit. The energy self-adaptive control system adopts an energy self-adaptive control strategy to realize self-adaptive adjustment output. In the invention, each group of photovoltaic module arrays isensured to work at a maximum energy efficiency point, and meanwhile, optimal balance of an electric quantity and an output quantity can be realized according to a household load and an external weather environment change, and stable operation of the household sensitive load can be ensured.

Description

technical field [0001] The invention relates to the technical field of micro-grids, in particular to an intelligent household micro-grid system. Background technique [0002] In recent years, the country has always adhered to the scientific concept of green development, and has continuously increased policy support for energy conservation and environmental protection. Photovoltaic power generation systems have begun to develop in the household field, especially under the encouragement of poverty alleviation photovoltaic preferential subsidy policies, a large number of photovoltaic power generation systems have entered village and town level household users, which has also brought a series of problems, such as poor quality of photovoltaic modules, insufficient luminous efficiency, Especially because of the complex surrounding environment of villages and towns, all kinds of insect and bird droppings, fallen leaves, etc. bring great difficulties to the maintenance of photovolta...

AI Technical Summary

Problems solved by technology

[0004] Although these traditional household micro-grid technologies and their system applications can realize self-control, protection and management, and provide loads with reliable supply of various energy forms, due to the mismatch between system load and system capacity, the power generated by photovoltaic power generation is in the When the energy storage battery is fully charged, it cannot be completely digested by the load, which will eventually cause a certain degree of power loss, or when the photovoltaic power generation is insufficient, the stable power supply of the load cannot be guaranteed.

That is to say, the traditional household microgrid cannot control the photovoltaic power generation system according to the load conditions of the family. Similarly, it cannot control the household load according to the power generation status of the photovoltaic power generation system, which ultimately leads to low operating efficiency and economic benefits of the system. The maintenance of components also requires a lot of manual intervention and maintenance time, resulting in low operating efficiency and poor electricity economy of the entire microgrid system

Images