Energy conservation control method and system based on microgrid

Abstract

The invention discloses an energy conservation control method and system based on a microgrid. The method comprises the steps of detecting a time interval of current time and inquiring a correspondence list between the time interval and a power utilization period to obtain a current power utilization period; obtaining the load power of a current user side, the output power of the microgrid and the electric quantity in a power storage device; judging whether the output power of the microgrid is larger than the load power of the current user side in a power utilization peak period; if on yes judgment, giving priority to charging the power storage device under the condition that the microgrid can meet a user load; if on no judgment, preferably utilizing the microgrid and the power storage device to supply power. According to the energy conservation control method and system based on the microgrid, the power supply object of the microgrid and the charge-discharge state of the power storage device are adjusted and controlled through different control methods according to different power utilization periods; thus, a user can fully utilize the microgrid, the stability of a power supply system is guaranteed, and the use efficiency and the use stability of the microgrid in the whole power supply system are improved.

Description

Technical field [0001] The invention relates to the technical field of microgrid control, in particular to an energy-saving control method and system based on microgrid. Background technique [0002] With the development of my country's technology and economy and increasing attention to energy conservation and emission reduction, the electric energy used in the conventional mains grid is no longer clean energy. In order to obtain renewable clean energy, a micro-grid was created. Among them, the construction of the smart grid of the micro-grid has achieved a lot of effective results. The smart grid has conducted rich research and practice in the access and management of renewable energy and distributed power sources, bringing new connotations and methods to household electricity. In order to comply with the development trend of smart grids and respond to the national call for energy conservation and emission reduction, household or household microgrids were created. Since the ho...

AI Technical Summary

Problems solved by technology

Renewable energy sources such as wind and light can effectively solve energy and environmental problems. However, the randomness and fluctuation of renewable energy such as wind and light are relatively large, and sometimes there will be insufficient power supply. Therefore, the existing micro The power grid usually needs to be used in conjunction with the conventional utility power grid so that clean energy can be used as much as possible

[0004] However, in the use of existing micro-grids, it is usually simply designed to be powered by the micro-grid, and the insufficient part is supplemented by the mains grid. This design not only makes the utilization rate of the micro-grid low, but also cannot adapt to the mains power supply. Different power consumption states during peak hours and low peak hours in the grid

That is to say, there is currently a lack of technical implementation solutions for household microgrids to achieve efficient and intelligent power consumption

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