Direct-current microgrid control processing method and device

A DC micro-grid, control and processing technology, applied in the direction of DC network circuit devices, circuit devices, electrical components, etc., can solve the problem that the fixed droop coefficient control method cannot meet the technical requirements, etc.

Active Publication Date: 2020-04-10
STATE GRID BEIJING ELECTRIC POWER +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] This application provides a DC microgrid control processing method and device to solve the problem that the fixed droop coefficient control method adopted in the related art cannot meet the technical requirements

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  • Direct-current microgrid control processing method and device
  • Direct-current microgrid control processing method and device
  • Direct-current microgrid control processing method and device

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[0023] It should be noted that, in the case of no conflict, the embodiments in the present application and the features in the embodiments can be combined with each other. The present application will be described in detail below with reference to the accompanying drawings and embodiments.

[0024] 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.

[0025] It should be noted that the terms "first" and "second...

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Abstract

The invention discloses a direct-current microgrid control processing method and device. The method comprises the steps that a droop curve adopted for droop control over the direct-current microgrid is acquired; and the droop curve is adjusted, and the adjustment of the droop curve comprises a hybrid compensation adjustment mode of translating the droop curve and adjusting the slope of the curve at the same time. According to the application, the problem that a fixed droop coefficient control mode adopted in related technologies cannot meet technical requirements is solved.

Description

technical field [0001] The present application relates to the field of direct current microgrid control, in particular, to a method and device for controlling and processing a direct current microgrid. Background technique [0002] In order to realize the power supply reliability and load proportional distribution of the DC microgrid system, multiple distributed power sources are usually required to share the power required by the load. In the parallel operation mode, the slack terminals of the system adopt the droop control characteristic. However, this control method using a fixed droop coefficient cannot simultaneously satisfy the two control objectives of proportional load distribution and bus voltage stability. The control is differential adjustment, and the addition of virtual impedance increases the voltage deviation of each distributed unit node, which is easy to exceed the allowable deviation range. [0003] In addition, droop control cannot meet the goal of coordi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02J1/00
CPCH02J1/00
Inventor 贾东强及洪泉刘庆时于希娟汪伟常乾坤万庆祝王海云张岩钱叶牛
Owner STATE GRID BEIJING ELECTRIC POWER
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