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Mixed micro-grid system

A micro-grid and hybrid technology, applied in the field of micro-grid, can solve the problems of unstable voltage and frequency, not too much consideration for comfort and rationality, and impact of micro-grid and large-scale grid, so as to increase flexibility, improve The effect of in-place consumption levels

Inactive Publication Date: 2017-07-04
HANGZHOU HEZHI ELECTRONICS TECH
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Problems solved by technology

However, due to the volatility, intermittency and uncertainty of renewable energy output, voltage and frequency instability often occur, which can easily cause serious impacts on microgrids and large power grids
[0003] In the current micro-grid structure, when an accident occurs in the power grid and switching from grid to grid is performed, in order to maintain the stability of the micro-grid, the power generation system and load are adjusted extensively, and there is not much comfort and rationality. consider

Method used

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Embodiment Construction

[0025] The present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments.

[0026] In one embodiment, a new microgrid structure is formed through the combination of power generation equipment, storage, and loads, which can quickly adjust the load curve of the user end, taking into account the needs of users and the need for rapid response to large grid safety accidents.

[0027] Refer to attached figure 1 , is a structural diagram of a hybrid microgrid system provided according to an embodiment of the present invention.

[0028] An exemplary microgrid system 100 includes a remote client 110 , a microgrid management platform 120 , multiple distributed generation systems 130 , an energy storage system 140 , and a load system 150 . The remote client 110 is connected to the microgrid management platform 120 through the Internet or private network 160. The remote client is mainly used for users to monitor the operation of...

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Abstract

The invention provides a mixed micro-grid system which comprises a remote client, a micro-gird management platform, a plurality of distributed power generation systems, an energy storage system and a load system. The micro-gird management platform separately establishes connections with the remote client, the plurality of distributed power generation systems, the energy storage system and the load system through internet or a private network. Each distributed power generation system comprises a distributed power generation control unit and one or more generator sets, the energy storage system comprises an energy storage control unit and energy storage equipment, the load system comprises direct control load and indirect control load, and the micro-gird management platform comprises a load prediction unit, an acquisition monitoring unit, a price cost calculating unit, a strategy optimization unit and a hierarchical control unit. According to the invention, the system can quickly regulate client load curve, improve response speed of grid safety accident and improving flexibility of micro-grid regulation.

Description

technical field [0001] The invention relates to the field of micro-grids, in particular to a hybrid micro-grid system. Background technique [0002] In order to solve energy and environmental problems, countries all over the world have been committed to promoting the development of new energy fields. In recent years, the application of new energy has become more and more extensive. The introduction of micro-grid technology provides an important technology for the efficient use of these new energy power. direction. However, due to the volatility, intermittency and uncertainty of renewable energy output, voltage and frequency instability often occur, which can easily cause serious impacts on microgrids and large power grids. [0003] In the current micro-grid structure, when an accident occurs in the power grid and switching from grid to grid is performed, in order to maintain the stability of the micro-grid, the power generation system and load are adjusted extensively, and ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02J3/38H02J3/28H02J3/14
CPCH02J3/003H02J3/14H02J3/28H02J3/381Y02B70/3225Y04S20/222
Inventor 黎叶晓
Owner HANGZHOU HEZHI ELECTRONICS TECH
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