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Regional power grid source network load storage multivariate coordination ubiquitous scheduling control system

A regional power grid, dispatching control technology, applied in electrical components, circuit devices, AC network circuits, etc., can solve the problems of limited peak shaving capacity, large peak-to-valley difference between power grids, and many heating units, etc., to reduce reserve capacity, The effect of increasing the spare capacity and reducing the peak-to-valley difference

Inactive Publication Date: 2019-11-01
STATE GRID TIANJIN ELECTRIC POWER +3
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For urban power grids with typical grid characteristics, there are the following problems: the peak-to-valley difference of the grid is large and continues to grow year by year; the proportion of new energy is increasing year by year; there are many heating units and the peak-shaving capacity is limited, so the peak-shaving situation of the grid is severe , the existing scheduling mode has been difficult to alleviate the contradiction between load characteristics and peak shaving demand
However, there are still obvious deficiencies in the application of source-network-load-storage collaborative control technology and the construction of market incentive guarantee mechanism.
In particular, at present, there is a lack of a multi-coordination system for source-grid-load-storage at the global level of the regional power grid at home and abroad to solve the above problems

Method used

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  • Regional power grid source network load storage multivariate coordination ubiquitous scheduling control system
  • Regional power grid source network load storage multivariate coordination ubiquitous scheduling control system

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Embodiment Construction

[0032] Below in conjunction with accompanying drawing and specific embodiment the present invention will be described in further detail:

[0033] The multi-coordination ubiquitous dispatching and control system of source, network, load, and storage in the regional power grid is divided into three levels from top to bottom, namely, decision-making layer, micro-grid coordination control layer (micro-grid layer), and equipment layer (unit layer). Each level is oriented to different objects, and supports flexible access and plug-and-play of multiple devices. The system architecture can achieve the goals of safe and reliable power supply, energy "interaction", and flexible consumption. System structure and basic functions such as figure 1 shown.

[0034] 1. Decision-making level:

[0035] (1) Obtain the operation data of each control object equipment from the corresponding micro-grid coordination control layer, and predict the output and load demand of renewable energy in the re...

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Abstract

The invention discloses a regional power grid source network load storage multivariate coordination ubiquitous scheduling control system, which comprises a decision-making layer, a micro-grid coordination control layer, and an equipment layer. The decision-making layer is used for acquires operation data of each control object device from the micro-grid coordination control layer, predicting renewable energy output and load requirements in a region, completing peak regulation and frequency modulation, reserve capacity coordination control and power transaction security check, carrying out day-ahead and intra-day collaborative optimization scheduling on each control object, and issuing a control target to the micro-grid coordination control layer. The micro-grid coordination control layer is used for realizing uploading of operation data of equipment in the micro-grid to the decision-making layer, realizing the internal coordination control and economic dispatch of the micro-grid, decomposing the decision-making layer control instruction and issuing the instruction to the equipment layer. The equipment layer is used for acquiring related equipment operation data and uploading the data to the micro-grid coordination control layer; executing a control instruction of the micro-grid coordination control layer; and island operation of the equipment in emergency is supported. According to the invention, global coordination optimization control under a multi-dimensional target can be realized, and the new energy acceptance capability and the power grid operation economy are improved.

Description

technical field [0001] The invention relates to the field of power system analysis, in particular to a ubiquitous dispatching control system for multi-coordination of source, network, load, and storage in regional power grids. Background technique [0002] The current power grid dispatching basically adopts the traditional dispatching mode of "source follows the load and only adjusts the centralized power generation", which mainly dispatches the centralized power generation and the power grid, and the load and energy storage are not included in the dispatching category for the time being. For urban power grids with typical grid characteristics, there are the following problems: the peak-to-valley difference of the grid is large and continues to grow year by year; the proportion of new energy is increasing year by year; there are many heating units and the peak-shaving capacity is limited, so the peak-shaving situation of the grid is severe , the existing scheduling mode has ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02J3/00H02J3/46
CPCH02J3/008H02J3/46
Inventor 于天一许志成俞浩孙宁卞海波陆涛刘宏江赵元元陈丽艳刘星何玉龙赵帅李振斌杨帮宇姚维平孙灿刘颂张杰张珩彭志超晁进刘放周扬帆张宇庞礴周光鲁王英鹏
Owner STATE GRID TIANJIN ELECTRIC POWER
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