Intelligent monitoring system for household electricity

Abstract

The invention relates to a monitoring system for household electricity, and relates to the technical field of solar power generation. The monitoring system comprises a photovoltaic module, a photovoltaic inverter with a wireless function, an energy storage device, an alternating current grid, a current detection device with a wireless function and a load, wherein when the current detection device detects the condition that electricity is obtained from the alternating current grid, the current detection device performs data exchange with the inverter wirelessly, and the inverter performs intelligent judgment; when the use power of the load is larger than the sum of output power of the photovoltaic module and output power of the energy storage device, the balance part obtains electricity from the alternating current grid; and when the use power of the load is smaller than the output power of the photovoltaic module, the balance power is stored in the energy storage device, so that the minimum electricity is obtained from the alternating current grid to the greatest extent.

Description

Technical field: [0001] The invention belongs to the field of photovoltaic power generation, and in particular relates to an intelligent monitoring system for household electricity. Background technique: [0002] At present, new energy sources are developing rapidly all over the world, and solar power generation among renewable energy sources is also developing very fast. Many countries have promulgated subsidy policies to encourage people to use new energy sources such as solar energy to generate electricity. The grid electricity price subsidy is still unclear. With the advancement of technology, the cost of photovoltaic power generation has been further reduced. In the near future, the cost of photovoltaic power generation will be lower than the price of electricity from AC. In the case of existing photovoltaic grid-connected power generation systems Under the current situation, the problem of how to reduce the power consumption from the AC grid and save costs has emerged....

AI Technical Summary

Problems solved by technology

[0002] At present, new energy sources are developing rapidly all over the world, and solar power generation among renewable energy sources is also developing very fast. Many countries have promulgated subsidy policies to encourage people to use new energy sources such as solar energy to generate electricity. The grid electricity price subsidy is still unclear. With the advancement of technology, the cost of photovoltaic power generation has been further reduced. In the near future, the cost of photovoltaic power generation will be lower than the price of electricity from AC. In the case of existing photovoltaic grid-connected power generation systems Under the current situation, the problem of how to reduce the power consumption from the AC grid and save costs has emerged.

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