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Scheduling method and device for low-voltage direct-current interconnected power distribution network with fast charging load and storage medium

A low-voltage DC, power distribution network technology, applied in circuit devices, AC networks with the same frequency from different sources, AC network circuits, etc., can solve the problems of high AC/DC converter cost, limited power supply capacity, etc. Achieve the effect of satisfying centralized control and local control, avoiding fast charging power limit, and reducing network loss

Pending Publication Date: 2022-07-12
STATE GRID JIANGSU ELECTRIC POWER CO ELECTRIC POWER RES INST +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in the low-voltage AC / DC distribution network, limited by the high cost of the AC / DC converter, the DC network is carried out by a single station, and the power supply capacity is limited

Method used

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  • Scheduling method and device for low-voltage direct-current interconnected power distribution network with fast charging load and storage medium
  • Scheduling method and device for low-voltage direct-current interconnected power distribution network with fast charging load and storage medium
  • Scheduling method and device for low-voltage direct-current interconnected power distribution network with fast charging load and storage medium

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0104] This embodiment introduces a low-voltage DC interconnection distribution network scheduling method with fast charging load, including:

[0105] Obtaining network architecture parameters, load forecast data, real-time load data, and real-time operation data of the low-voltage DC interconnected distribution network, where the load forecast data includes load forecast data corresponding to the day-ahead scheduling period and the intra-day scheduling period;

[0106] According to the set day-ahead scheduling period, before the scheduling day, based on the obtained network architecture parameters and the load forecast data corresponding to the day-ahead scheduling period, the pre-built day-ahead scheduling model is solved to obtain the energy storage charging and discharging status of each time period within the scheduling day. and tie switch status scheduling results;

[0107]According to the set intra-day scheduling period, within the scheduling day, based on the obtained ...

Embodiment 2

[0213] Based on the same inventive concept as Embodiment 1, this embodiment introduces a low-voltage DC interconnected distribution network dispatching device with fast charging load, including:

[0214] A data acquisition module is configured to acquire network architecture parameters, load forecast data, real-time load data and real-time operation data of the low-voltage DC interconnected distribution network, where the load forecast data includes loads corresponding to the day-ahead scheduling period and the intra-day scheduling period forecast data;

[0215] The day-ahead scheduling calculation module is configured to, according to the set day-ahead scheduling period, before the scheduling day, based on the acquired network architecture parameters and the load forecast data corresponding to the day-ahead scheduling period, solve the pre-built day-ahead scheduling model, and obtain Dispatch results of energy storage charging and discharging status and tie switch status in e...

Embodiment 3

[0223]This embodiment introduces a computer-readable storage medium on which a computer program is stored. When the computer program is executed by a processor, the method for dispatching a low-voltage DC interconnection distribution network with fast charging load as described in Embodiment 1 is implemented.

[0224] like figure 1 shown, the present invention

[0225] As will be appreciated by those skilled in the art, the embodiments of the present application may be provided as a method, a system, or a computer program product. Accordingly, the present application may take the form of an entirely hardware embodiment, an entirely software embodiment, or an embodiment combining software and hardware aspects. Furthermore, the present application may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, CD-ROM, optical storage, etc.) having computer-usable program code embodied therein. ...

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Abstract

The invention discloses a scheduling method and device for a low-voltage direct-current interconnected power distribution network with a fast-charging load and a storage medium, and the method comprises the steps: solving a day-ahead scheduling model based on network architecture parameters and load prediction data of a corresponding day-ahead scheduling time period before a scheduling day, and obtaining a current scheduling model; obtaining the energy storage charge and discharge state and interconnection switch state scheduling result of each time period in the scheduling day; in the scheduling day, solving the intra-day scheduling model in a rolling manner based on the network architecture parameters, the load prediction data of the corresponding intra-day scheduling time period and the day-ahead scheduling result, and obtaining the energy storage power, the photovoltaic power and the converter switching state scheduling result of each intra-day scheduling time period in the current day; and based on the real-time load data and the real-time operation data, solving the real-time scheduling model to obtain a real-time scheduling result of the converter and the charging pile. According to the method, flexible control over devices such as interconnection switches, energy storage devices and converters can be achieved through intra-day-day-before-real-time multi-time-scale different-target scheduling.

Description

technical field [0001] The invention relates to the technical field of optimal scheduling of power systems, in particular to a scheduling method, device and storage medium for a low-voltage direct current interconnected distribution network with fast charging loads. Background technique [0002] At present, fossil energy is still the main body of my country's energy supply. In order to further achieve energy conservation and emission reduction, my country has put forward the development goals of carbon peaking and carbon neutrality. Electric vehicles are not only an integral part of the energy revolution and energy transformation, but also an important starting point for achieving carbon peaking and carbon neutrality. However, the electric vehicle charging peak period overlaps with the conventional load power consumption peak period, the overload risk in the Taiwan area is high, and the network loss cost is high. In terms of accessing the charging load of electric vehicles,...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02J3/06H02J3/38H02J3/32H02J3/00G06F30/20G06Q10/06G06Q50/06G06F111/04G06F111/06G06F113/04
CPCH02J3/06H02J3/38H02J3/32H02J3/0075G06F30/20G06Q10/0631G06Q50/06H02J2203/20G06F2111/04G06F2111/06G06F2113/04Y04S20/222
Inventor 苏伟曾飞肖小龙袁宇波杨雄郭佳豪史明明方鑫袁晓冬
Owner STATE GRID JIANGSU ELECTRIC POWER CO ELECTRIC POWER RES INST
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