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Running status evaluation method and system of microgrid group

A technology of operating state and micro-grid group, which is applied in the direction of AC network circuits, electrical components, circuit devices, etc., can solve the problem that the real-time evaluation of the coordinated control of the micro-grid group does not occur, and achieve the effect of accurate operating state

Active Publication Date: 2015-12-23
CHINA AGRI UNIV
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  • Description
  • Claims
  • Application Information

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Problems solved by technology

At present, there is no standard definition of the concept of micro-grid groups at home and abroad, and the coordinated control of micro-grid groups and the real-time evaluation of the operating status of micro-grid groups as the basis for coordinated control have not appeared.

Method used

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  • Running status evaluation method and system of microgrid group
  • Running status evaluation method and system of microgrid group
  • Running status evaluation method and system of microgrid group

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Embodiment Construction

[0045] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments It is a part of embodiments of the present invention, but not all embodiments. 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.

[0046] figure 1 It shows a schematic flowchart of a method for assessing the operating state of a microgrid group provided by an embodiment of the present invention, refer to figure 1 , the method includes the following steps:

[0047] 101. Collect the voltage value of the AC bus in the microgrid group, match the voltage value with the volt...

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Abstract

The invention relates to a running status evaluation method and system of a microgrid group, relating to the field of power system running status evaluation. The method comprises the following steps of: acquiring a voltage value of an AC bus in the microgrid group, matching the voltage value with a predetermined voltage value in a power quality section, and determining the power quality of the microgrid group; acquiring a value of a predetermined parameter of each sub microgrid in the microgrid group, acquiring a value of a verification index of each sub microgrid according to the value of the predetermined parameter, acquiring a value of a verification index of the microgrid group according to the value of the verification index of each sub microgrid, and determining regulation capability of the microgrid group according to a predetermined regulation capability rule and the value of the verification index of the microgrid group; and matching according to the power quality of the microgrid group, the regulation capability of the microgrid group, a connection status between a power distribution grid and the AC bus and a predetermined running statue rule, and determining the running status of the microgrid group. By the above method, the running status of the microgrid group can be accurately evaluated, and the reliability of coordination control of the microgrid group is improved.

Description

technical field [0001] The invention relates to the field of evaluating the operating state of a power system, in particular to a method and system for evaluating the operating state of a microgrid group. Background technique [0002] The microgrid can improve the power supply reliability and voltage stability of the distributed power access area. However, due to the intermittent and random nature of the distributed power contained in the microgrid, a single microgrid may still not be able to meet the power supply requirements of the microgrid. need. Therefore, in a certain geographical area, multiple microgrids are connected to the distribution network in the form of a cluster through a common connection point, and the energy mutual aid between each microgrid is coordinated and controlled through the microgrid group. [0003] Due to the complexity of the topological structure of the low-voltage micro-grid group and the particularity of cluster control, the coordinated cont...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02J3/00
Inventor 井天军王江波李铮唐云峰杨仁刚
Owner CHINA AGRI UNIV
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