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Micro-grid energy management system

An energy management system and energy management technology, applied in the field of distributed power generation control, can solve the problems of grid-connected scale limitation, grid and user impact, etc.

Active Publication Date: 2015-12-30
NANYANG INST OF TECH
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Problems solved by technology

[0002] Distributed power supply has the characteristics of flexible and decentralized installation location, which is well adapted to the distributed resource distribution and power demand; compared with the traditional centralized large power grid power supply mode, it saves power transmission and distribution resources and operating costs, and reduces the power transmission process. Therefore, the power utilization efficiency is improved; distributed generation can reduce the total capacity of the power grid, improve the peak and valley performance of the power grid, and improve the reliability of power supply. In the case of a failure of the large power grid, it can operate in isolation from the large power grid. Guaranteeing the minimum energy supply and the most basic living needs of residents has become a powerful supplement and effective support for the large power grid; Power quality, stability, system protection, system operation reliability, distribution network management and other aspects have brought many adverse effects, which limit the scale of grid connection

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Embodiment Construction

[0050] A microgrid energy management system, the microgrid energy management system can collect power grid information, distributed power supply information, load information, etc. based on a real-time monitoring system; realize the communication between the main network, various distributed power Optimal power matching; Realize flexible switching of various distributed power sources; Realize conversion between island and grid-connected operating modes, etc.

[0051] Grid-connected micro-grid control coordinates the relationship between the micro-grid and the external network through reasonable scheduling of distributed energy resources within the micro-grid, so as to achieve rational utilization of resource equipment inside the micro-grid, and at the same time meet certain auxiliary requirements of the upper-level grid for the micro-grid. The purpose of the service's needs. At this time, the external network usually regards the microgrid as a controllable load model. At this ...

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Abstract

The invention provides a micro-grid energy management system. The micro-grid energy management system can be used for seeking the optimal solution of a system economic operation through conditional constraint by establishing an energy management objective function, and conducting layered management through a distributed energy management system, a micro-grid intelligent energy administration center and a local energy controller, so as to realize real-time control of energy management, and realize optimized operation of the micro-grid energy management system through middle-long term management and an optimized running method of grid connection and grid disconnection.

Description

technical field [0001] The invention relates to the technical field of distributed power generation control, in particular to a micro-grid energy management system. Background technique [0002] Distributed power supply has the characteristics of flexible and decentralized installation location, which is well adapted to the distributed resource distribution and power demand; compared with the traditional centralized large power grid power supply mode, it saves power transmission and distribution resources and operating costs, and reduces the power transmission process. Therefore, the power utilization efficiency is improved; distributed generation can reduce the total capacity of the power grid, improve the peak and valley performance of the power grid, and improve the reliability of power supply. In the case of a failure of the large power grid, it can operate in isolation from the large power grid. Guaranteeing the minimum energy supply and the most basic living needs of r...

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Application Information

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IPC IPC(8): H02J3/38
CPCY02P80/14
Inventor 高彦卿杨晶张旭韩峰杨磊
Owner NANYANG INST OF TECH
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