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System and method for managing energy of micro-grid

A technology of energy management system and micro grid, applied in the field of energy management system

Active Publication Date: 2015-01-14
SUNGROW POWER SUPPLY CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] In view of this, the present invention provides an energy management system and method for a micro-grid to solve the problem that the energy management system in the prior art does not need to control data quickly and accurately, and is not suitable for scenarios such as households and small businesses. The specific plan is as follows:

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  • System and method for managing energy of micro-grid

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Embodiment Construction

[0077] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0078] This embodiment discloses an energy management system for a micro-grid, the schematic diagram of which is shown in figure 1 shown, including:

[0079] A power generation unit 11 , an energy storage unit 12 , and a control unit 13 .

[0080] Wherein, the control unit 13 is respectively connected with the power generation unit 11, the energy storage unit 12, the local load and the public grid.

[0081] Wherein, the control unit 15 controls the power gen...

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Abstract

The invention discloses a system and method for managing the energy of a micro-grid. The system comprises an electricity generation unit, an energy storage unit and a control unit. The control unit acquires information of a public grid of the electricity generation unit and the energy storage unit and information of local loads and adjusts the work state of each unit at the next moment according to the current grid connection power and information of each unit, so that the energy flow direction of the system is adjusted and optimal electricity supply is guaranteed. By the adoption of the scheme, the current state and the state of the next moment are accurately acquired and judged, so that the state of a convertor in the system is controlled, the self-electricity-generation self-use rate and benefits are maximized, and the problem that the electric energy flow direction can not be accurately controlled in the prior art, so that the system is not suitable for places such as a family and a small commercial tenant is solved.

Description

technical field [0001] The invention relates to the field of power grid management, in particular to an energy management system and method. Background technique [0002] Microgrid is based on distributed power generation technology. It is a network composed of multiple distributed power sources and their related loads according to a certain topology, and is connected to the conventional power grid through static switches. [0003] In order to realize the management of the micro-grid, an energy management system has emerged, which is the basis for ensuring the safe, reliable and economical operation of the entire micro-grid. The energy management system of a micro-grid with photovoltaic power generation is to adjust the power of the energy storage unit or the power grid in time to plan optimal power generation and power consumption under the condition of changes in the power generation of the photovoltaic array. [0004] However, the existing energy management systems are g...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02J3/28
CPCH02J3/28
Inventor 刘宝其张彦虎胡兵柳萌薛丽英赵为
Owner SUNGROW POWER SUPPLY CO LTD