Family flexible power supply system based on new energy and mains power supply

Abstract

The invention discloses a family flexible power supply system based on new energy and mains power supply. The system comprises a power supply controller, a plurality of load controllers of a same structure, a first live wire and a second live wire. A first control switch unit of the power supply controller is composed of four switches, the selective access of new energy electricity and mains electricity can be achieved through the four switches, and the accessed electricity can also be selectively transmitted by the first live wire or the second live wire. Each load controller is connected tothe first live wire and the second live wire at the same time, a second control switch unit of each load controller consists of two switches, the electricity can be selectively received from the firstlive wire or the second live wire through every two switches, and of course, the load controllers can also preferably adopt electricity for power supply according to the type of a current load. By means of the system, the two-way selection between a power supply and a household load is achieved, and the power supply flexibility and reliability are high.

Description

technical field [0001] The invention relates to a family flexible power supply system based on new energy and mains power supply. Background technique [0002] With the rapid development of new energy power generation technology, more and more new energy sources such as wind and light are connected to the home power supply system, forming a home microgrid. However, the current new energy access control equipment only connects the new energy power and the mains power together, and then supplies power to the household load through a live wire. This power supply method cannot meet the requirements for diverse power sources in the home power supply system because the new energy power and the mains power are not independent of each other. In addition, since household loads have different requirements on power quality, the above-mentioned power supply method cannot solve the problem of selecting the type of power access for different household loads. In addition, since the new e...

AI Technical Summary

Problems solved by technology

This power supply method cannot meet the requirements for diverse power sources in the home power supply system because the new energy power and the mains power are not independent of each other.

In addition, due to the different requirements of household loads on power quality, the above-mentioned power supply methods cannot solve the problem of choosing the type of power access for different household loads

In addition, since the new energy power and the mains power are connected together in parallel, the harmonics and voltage fluctuations in the new energy grid can easily cause the power quality of the distribution network to decline, thus affecting the promotion of new energy in the home grid.

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