Intelligent household micro-network system based on peak and off-peak difference of electricity price

Abstract

The invention provides an intelligent household micro-network system based on peak and off-peak difference of electricity price. The intelligent household micro-network system stores electric energy during a the time when the electricity price is the lowest each day, and releases the stored electric energy for use. The intelligent household micro-network system comprises a case body, a controller built-in the case body, a current condenser, a charger, an inverter and AC contactors JC1, JC2 and JC3, wherein commercial power is sequentially and electrically connected the AC contactor JC2 and electric appliances of a user, the commercial power is sequentially and electrically connected the AC contactor JC1 and the input end of the charger, the output end of the charger is respectively and electrically connected the current condenser and the input end of the inverter, the control signal input end of the inverter is electrically connected with the controller, and the output end of the inverter is sequentially and electrically connected the AC contactor JC3 and the electric appliances of the user. The intelligent household micro-network system can reduces peak and off-peak difference of a power grid, stores electric energy for use, consumes electricity reasonably, and lowers electricity charge. The intelligent household micro-network system is reasonable in structure, convenient for control, high in automation degree, and excellent in use effect.

Description

technical field [0001] The invention relates to energy storage technology and smart home technology, and is a smart home microgrid system based on the peak-valley difference of electricity prices. Background technique [0002] The Development and Reform Commission of the People's Republic of China issued a document in 2013 to strengthen demand-side management of electricity consumption, encourage residential users to participate in peak shifting of electricity, and require all localities to improve the tiered electricity price system for residents by the end of 2015 and implement a time-based electricity price policy. Although the time-segmented electricity price policy makes electricity consumption from late night to early morning the cheapest, for residents, it is impossible to directly transfer household electricity such as laundry and cooking to this time period, which may lead to economic regulation policies. The effect is not ideal. So far, there have been no literatu...

AI Technical Summary

Problems solved by technology

Although the time-segmented electricity price policy makes electricity consumption from late night to early morning the cheapest, for residents, it is impossible to directly transfer household electricity such as laundry and cooking to this time period, which may lead to economic regulation policies. The effect is not ideal

So far, there have been no literature reports and practical applications on the integration of energy storage, inverter, and smart home micro-grid systems to solve the problem of non-industrial power users participating in peak shifting and valley filling

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