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Power distribution network medium voltage-low voltage collaborative optimization method

A technology for collaborative optimization and distribution network, applied in electrical components, circuit devices, AC network circuits, etc., to solve problems such as the inability to optimize control of medium-voltage-low voltage flexible resources in distribution networks

Active Publication Date: 2020-08-18
YUNNAN POWER GRID CO LTD ELECTRIC POWER RES INST +1
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  • Application Information

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Problems solved by technology

[0005] This application provides a medium-voltage-low-voltage collaborative optimization method for distribution networks to solve the problem that existing technologies cannot effectively optimize and control medium-voltage-low-voltage flexible resources in distribution networks

Method used

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  • Power distribution network medium voltage-low voltage collaborative optimization method
  • Power distribution network medium voltage-low voltage collaborative optimization method

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Embodiment Construction

[0171] In order to enable those skilled in the art to better understand the technical solutions in the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described The embodiments are only some of the embodiments of the present application, not all of them. 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.

[0172] see figure 1 , is a schematic flowchart of a medium-voltage-low-voltage collaborative optimization method for a distribution network provided in an embodiment of the present application. refer to figure 1 As can be seen, the method includes the following steps:

[0173] S1. Based on the space-time scale of the distribution network, ...

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Abstract

The invention discloses a power distribution network medium voltage-low voltage collaborative optimization method, which comprises the steps of constructing a power distribution network medium voltage-low voltage resource coordination control system based on the space-time scale of a power distribution network, including a day-ahead stage medium voltage control center, an intra-day stage low-voltage control center and a real-time stage resource control center; obtaining the operation cost of the medium-voltage power distribution network system based on the day-ahead stage medium-voltage control center, and establishing a day-ahead optimization objective function based on the operation cost of the medium-voltage power distribution network system; setting a day-ahead optimization constraintcondition; obtaining a medium-voltage power distribution network optimization scheduling model; establishing a prediction model based on the intra-day stage low-voltage control center; sequentially carrying out rolling optimization and feedback correction on the prediction model to obtain the closed-loop rolling optimization control model of the low-voltage power distribution network; and solvingthe medium-voltage power distribution network optimization scheduling model and the low-voltage power distribution network closed-loop rolling optimization control model to realize coordination control of medium-voltage-low-voltage resources of the power distribution network. According to the invention, optimization control can be carried out on medium-voltage-low-voltage flexible resources of thepower distribution network.

Description

technical field [0001] The present application relates to the field of power distribution system automation, in particular to a medium-voltage-low-voltage collaborative optimization method for a power distribution network. Background technique [0002] The distribution network occupies an important position in the power system, including the power supply side and the demand side. On the power supply side, distributed photovoltaics are widely used at present, which has the characteristics of adapting to the complex terrain of power distribution areas and narrow construction space; on the demand side, clean and pollution-free electric vehicles have been widely used in urban areas with high development into the distribution network. With the rapid development of distribution network, the penetration rate of distributed photovoltaic is gradually increasing, which is easy to cause network congestion, so it is very important to optimize the operation of distribution network. Fle...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02J3/46H02J3/00
CPCH02J3/466H02J3/008H02J2203/20H02J2203/10
Inventor 苏适马麟罗恩博赵磊张旭东黄星杨洋严玉廷
Owner YUNNAN POWER GRID CO LTD ELECTRIC POWER RES INST
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