Micro grid based integrated energy development system and method

Abstract

The invention discloses a micro grid based integrated energy development system and method. The system comprises a photovoltaic assembly, a blower fan, a generator, a photovoltaic controller, a blowerfan controller, a generator control cabinet, an onsite switch, an AC bus, a DC bus, an AC electric quantity collection terminal, an AC load, a DC electric quantity collection terminal, a DC load, a contactor, a storage battery pack, an inverter, a rectifier, a controller, a network and a remote server. The system and method have the advantages that the system is designed reasonably, the AC and DCelectric quantity collection terminal can collect electric quantities used in the AC and DC loads respectively, AC and DC power utilization conditions can be provided effectively, and reference is provided for start /stop of the inverter and the rectifier.

Description

technical field [0001] The invention relates to a comprehensive energy development system, in particular to a microgrid-based comprehensive energy development system and method, and belongs to the field of energy development. Background technique [0002] Due to the dual pressure of environmental protection and energy depletion, we are forced to vigorously develop clean renewable energy. Renewable energy generation technologies such as photovoltaic power generation and wind power generation have received extensive attention and application, and are useful in some small towns, pastoral areas, islands, etc. In areas where electricity demand is not convenient for large-scale power grid construction, the application of renewable energy is of great significance for reducing construction costs and achieving energy conservation and emission reduction. In order to make full use of renewable energy, micro-grid technology is used to connect distributed energy sources and loads. It not...

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Problems solved by technology

[0002] Due to the dual pressure of environmental protection and energy depletion, we are forced to vigorously develop clean renewable energy. Renewable energy generation technologies such as photovoltaic power generation and wind power generation have received extensive attention and application, and are useful in some small towns, pastoral areas, islands, etc. In areas where electricity demand is not convenient for large-scale power grid construction, the application of renewable energy is of great significance for reducing construction costs and achieving energy conservation and emission reduction. In order to make full use of renewable energy, micro-grid technology is used to connect distributed energy sources and loads. It not only realizes the local utilization of renewable energy, reduces losses, but also realizes the reasonable dispatch of electric energy in the region, which improves the reliability of power consumption. Microgrid, also known as microgrid, is a group of distributed power supply, load and energy storage systems The microgrid is an autonomous system capable of self-control, protection and management. It can operate in parallel with the external grid or in isolation. When the microgrid operates in isolation, due to the various power sources in the Some of the generated electricity is alternating current and some are direct current. In order to unify the existing technical solutions, all of them are converted into alternating current for use. However, in many occasions where direct current is required, it needs to be rectified again into alternating current. In this process, it is caused The waste of energy leads to low efficiency. Since most of the energy sources in the microgrid are distributed, it is difficult to effectively carry out centralized control and management in traditional solutions.

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