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Implementation method and device for loads to access to microgrid

An implementation method and technology of microgrid, applied in the field of microgrid, can solve problems such as three-phase load imbalance of microgrid, achieve the effect of solving the problem of unbalanced three-phase load of microgrid and reducing the degree of unbalanced three-phase load

Inactive Publication Date: 2019-06-07
STATE GRID BEIJING ELECTRIC POWER +1
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] The embodiment of the present application provides a method and device for implementing load access to a microgrid, so as to at least solve the increasingly prominent technical problem of unbalanced three-phase loads of the microgrid caused by the asymmetry of the three-phase loads of the microgrid

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  • Implementation method and device for loads to access to microgrid
  • Implementation method and device for loads to access to microgrid
  • Implementation method and device for loads to access to microgrid

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Embodiment Construction

[0027] In order to enable those skilled in the art to better understand the solution of the present application, the technical solution in the embodiment of the application will be clearly and completely described below in conjunction with the accompanying drawings in the embodiment of the application. Obviously, the described embodiment is only It is an embodiment of a part of the application, but not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by persons of ordinary skill in the art without creative efforts shall fall within the scope of protection of this application.

[0028] It should be noted that the terms "first" and "second" in the specification and claims of the present application and the above drawings are used to distinguish similar objects, but not necessarily used to describe a specific order or sequence. It is to be understood that the data so used are interchangeable under appropriate circumstances such ...

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Abstract

The invention discloses an implementation method and device for loads to access to a microgrid. The method includes establishing the three-phase load function of a microgrid; performing calculating onthe three-phase load function according to a quantum genetic algorithm so that an optimal solution can be obtained; determining the phase sequence of at least one single-phase load accessing to the microgrid according to the optimal solution; and accessing at least one single-phase load to the microgrid according to the phase sequence of at least one single-phase load. Thus, the technical problemof the increasing imbalance problem of the three-phase load of the microgrid caused by the asymmetric three-phase load of the microgrid can be solved.

Description

technical field [0001] The present application relates to the field of microgrids, and in particular, to a method and device for implementing load access to microgrids. Background technique [0002] In recent years, more and more attention has been paid to microgrid energy optimization management, and the unbalanced three-phase load of microgrid has always been one of the problems affecting the power quality of microgrid. At present, most microgrids supply power to users after stepping down at 10kV / 400V first. Most of the wiring methods are three-phase four-wire system, and a few are three-phase three-wire system. When the local power supply bureau installs a single-phase load, it basically distributes the load evenly on the three phases A, B, and C. Continuous operation forces the unbalanced three-phase load on the power distribution side to become increasingly serious. The asymmetry of the three-phase load of the microgrid is the main reason for the unbalanced three-phas...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02J3/26
CPCY02E40/50
Inventor 黄山刘弘景吴麟琳周峰苗旺吴振升
Owner STATE GRID BEIJING ELECTRIC POWER
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