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Wheeling path selection method and system based on big data analysis

A path selection, big data technology, applied in circuit devices, AC network circuits, electrical components, etc., can solve problems such as system oscillation, changes in the total amount of power transfer energy, and intelligent equipment disasters. The effect of system instability

Active Publication Date: 2018-08-10
王鑫磊
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Problems solved by technology

[0003] However, the existing transfer methods only set the selected transfer mode after a fault occurs, which is an obstacle to the development of smart grids with stricter real-time requirements. During this period of time to choose the power transfer method, the power may impact all corners of the smart grid, which will bring disaster to various smart devices
Moreover, the conventional transfer method does not consider the change of the total amount of electric energy before and after the transfer. If the change is large, it will cause system oscillation and induce more serious secondary faults.

Method used

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  • Wheeling path selection method and system based on big data analysis
  • Wheeling path selection method and system based on big data analysis

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Embodiment Construction

[0031] See figure 1 , a transfer path selection method based on big data analysis, including the following steps:

[0032] a. Based on historical data and current transfer data, establish a transfer path big data transfer analysis model:

[0033] Set transfer path selection set S:

[0034] S={s 1 ,s 2 ,...,s p}, p is the total number of alternative transfer paths, s i Represents an alternative transfer route;

[0035] Establish the total energy model of the power system:

[0036] ,

[0037] Among them, n is the total number of nodes in the power system, , are the active and reactive injections of node i, respectively, is the node i voltage phase angle, is the voltage amplitude of node i, is the susceptance between nodes i and j, is the self-susceptance of node i, is the total energy of the power system;

[0038] The total energy e of the power system is verified according to the data of the historical transfer scheme: , where p1, p2p(n-1) are the avai...

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Abstract

The invention discloses a wheeling path selection method based on big data analysis. A wheeling path selection set S and the historical wheeling path number are set, and a total energy model of a power system is established; a real-time wheeling path selection set S0 is obtained, the real-time total energy e0 of the power system is calculated, and the total energy of the simulated power system after power wheeling according to a wheeling path is calculated; all wheeling paths in the wheeling path selection set are re-ordered according to a solution result; wheeling paths satisfying conditionsare output according to information of a trend section; and when there is a wheeling demand, power wheeling is carried out according to the output wheeling path. Big data analysis is carried out for wheeling path selection by setting a wheeling path selection manner in real time, an optimized wheeling selection scheme is formed so that power wheeling can be carried out timely, and the used wheeling path can satisfy requirement for the stability of the system to largest extent on the basis of a total energy function.

Description

technical field [0001] The invention relates to a method for selecting a transfer route based on big data analysis, in particular to a method for selecting a transfer route based on big data analysis and a big data analysis system that can ensure the stability and safety of the system after the transfer route is implemented. Background technique [0002] The power output and load in the power system are in the process of real-time changes, and power lines and equipment usually fail due to the external environment, such as wind, rain, thunder, electricity, and their own life. Therefore, power transfer is a power It is a method commonly used in the system to re-guarantee the power supply when there is a power imbalance, so that the power can reach a balanced state again. [0003] However, the existing transfer methods only set the selected transfer mode after a fault occurs, which is an obstacle to the development of smart grids with stricter real-time requirements. During th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02J3/00
CPCH02J3/0073H02J2203/20
Inventor 李淑芹
Owner 王鑫磊
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