Multi-user home energy sharing system based on energy cloud

Abstract

The invention relates to a multi-user home energy sharing system based on an energy cloud. The system comprises a power grid, an accumulator energy cloud, a proxy side and a user side; the system disclosed by the invention unifies a home accumulator energy-storing system to the accumulator energy cloud; the user side rents the accumulator battery with the corresponding capacity as required, the investment, the maintenance and the management of the accumulator energy cloud are proxied by the proxy side; the user side adding in the accumulator energy cloud can directly sale redundant electric energy stored by the accumulator to the proxy side; and the condition that a converter with high requirement is required for selling the redundant electric energy to the power grid by the user side canbe avoided in the whole process. Compared with the prior art, the system disclosed by the invention is low in cost, simple in operation, capable of being renting and booking as required, and effectively avoiding the problem in the tradition home accumulator energy-storing system, and the system is in favor of promoting the smart power grid and developing the energy internet.

Description

technical field [0001] The invention relates to the field of household electrical energy storage, in particular to an energy cloud-based multi-user household energy sharing system and method. Background technique [0002] Nowadays, with the increasingly severe energy and environmental problems, the grid structure will change from the traditional grid to the smart grid. Among them, renewable energy sources such as solar energy and wind energy can be recycled in nature and are inexhaustible. The grid connection of renewable energy can alleviate the increasingly severe energy and environmental problems. However, renewable energy is intermittent and random, how to establish an economical and stable output renewable energy system has become a recent research hotspot. In addition, since the peak period of electricity consumption is usually during the day, and the evening is the low period. This will cause insufficient electric energy during the day, and the surplus of electric ...

AI Technical Summary

Problems solved by technology

First, the one-time investment cost of decentralized installation of battery energy storage equipment is high and requires self-maintenance; second, the power generation of renewable energy has seasonal changes, and the installed battery energy storage equipment has a fixed capacity and cannot be changed seasonally The capacity of the energy storage system; third, the output of the battery is direct current. When the user has excess electric energy that needs to be connected to the grid for sale, the conversion requirements for converting it into alternating current and transmitting it to the grid are high

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