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Method and system for managing microgrid energy

A micro-grid and energy technology, applied in information technology support systems, AC network circuits, electrical components, etc., can solve the problems of weakening the environmental and economic benefits of the micro-grid system, and achieve the effect of intuitive operation

Inactive Publication Date: 2012-04-18
STATE GRID TIANJIN ELECTRIC POWER +3
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The current micro-grid management technology does not realize the functions of distributed power optimal control, energy economic dispatch, renewable energy output forecast, demand-side response and plug-and-play, which seriously weakens the environmental and economic benefits brought by the micro-grid system.

Method used

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  • Method and system for managing microgrid energy
  • Method and system for managing microgrid energy

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Embodiment Construction

[0021] In order to make the purpose, technical solution and advantages of the present invention more clear, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the invention.

[0022] figure 1 The structure of the system for managing microgrid energy provided by the embodiment of the present invention is shown. For ease of illustration, only the parts relevant to the present invention are shown.

[0023] The system includes:

[0024] The smart meter 11 is used to collect electricity information of lighting loads, important loads, reactive power compensation devices, a small amount of power loads, and mains grid connection, and output real-time data by using the RS485 bus Modbus RTU protocol;

[0025] The inverter 12 is used to convert the direct current into the alternatin...

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Abstract

The invention belongs to the field of scheduling and management of power distribution networks and provides a method and a system for managing microgrid energy. An intelligent electric meter acquires electric quantity information of each load of a microgrid system; an intelligent terminal receives data of the electric quantity information acquired by the intelligent electric meter and outputs the acquired data through an Ethernet in real time; a microgrid system controller receives the information data output by the intelligent terminal, arranges the information data output by the intelligent terminal, performs logic judgment according to a preset microgrid control strategy, acquires a microgrid control criterion execution instruction and transmits the control instruction to the intelligent terminal, so that distributed power supply optimized control, energy economic scheduling, regenerative energy output forecast, reactive power optimization and voltage control, demand side response, plug-and-play, grid connection, island conversion and other application functions are realized; therefore, the characteristics of toughness, reliability, high attack resistance and high economy of an intelligent power grid are embodied; and the method and the system have a great significance for popularization and demonstration.

Description

technical field [0001] The invention belongs to the field of distribution network dispatching and management, and in particular relates to a method and system for managing micro-grid energy. Background technique [0002] After the distributed power supply is connected to the power distribution system, the distribution network changes from the original single power receiving structure to a multi-power source structure, which has a great impact on the voltage fluctuation, harmonics, and relay protection of the power system. Distributed power supply is an uncontrollable source for the power grid. The microgrid system regards the load and distributed power supply as a whole. When the external network fails, it will switch to the island operation mode to improve the reliability of power supply. Independently supply power to important loads. [0003] The current micro-grid management technology does not realize the functions of distributed power optimal control, energy economic d...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02J3/00H02J13/00
CPCY04S20/18Y04S40/124Y02B90/228Y02B90/2638Y02B90/20
Inventor 郜士其杨宇全迟福建杨磊林昌年张鹏王庆平张毅
Owner STATE GRID TIANJIN ELECTRIC POWER
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