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Power grid partitioning method based on line transmission betweenness

A technology of transmission dielectric number and power grid partition, applied in electrical components, circuit devices, AC network circuits, etc., can solve the problems of thermal stability constraints, power rationing, and control of power transmission and consumption in the transmission channel, so as to alleviate mutual constraints, The effect of optimizing the power supply

Inactive Publication Date: 2019-06-07
NORTH CHINA ELECTRIC POWER UNIV (BAODING)
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Problems solved by technology

However, traditional zoning is mostly based on geographical location, and the adjustment of zoning based solely on geographical location is prone to the phenomenon that the sending channel has thermal stability constraints and is forced to limit power.
In the power grid at the sending end, the external transmission and consumption of electricity may be restricted

Method used

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  • Power grid partitioning method based on line transmission betweenness
  • Power grid partitioning method based on line transmission betweenness
  • Power grid partitioning method based on line transmission betweenness

Examples

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Embodiment

[0053] figure 2 It is a schematic diagram of the Gansu Hexi Power Grid with multiple source loads such as wind power, hydropower, thermal power, and high-load energy load according to the embodiment of the present invention. image 3 It is a curve diagram of the ascending order of the transmission dielectrics of the transmission lines in the Hexi region of Gansu according to the embodiment of the present invention. Figure 4 It is a schematic diagram of the division result of the Hexi region of Gansu according to an embodiment of the present invention. In this embodiment, the operation data of the 2018 Winter University in Gansu Province is used for analysis. The method of grid division based on the transmission dielectric of the line provided by the present invention includes:

[0054] S1: Analyze the topological structure model of Hexi Power Grid in Gansu Province. In order to simplify the calculation, only nodes and lines with voltage levels of 330kV and above are considered, w...

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Abstract

The invention discloses a power grid partitioning method based on line transmission betweenness, and belongs to the field of topological partitioning of complex networks. The method comprises the following steps: calculating a node admittance matrix of a whole power grid according to a topological structure model of the power grid in a local area; calculating a power transmission distribution factor of each line; calculating the load rate of each line; calculating the transmission betweenness of the transmission lines; performing sorting according to the values of transmission betweenness of the transmission lines, and partitioning the power grid at the key transmission line of a transmission betweenness inflection point by adopting a GN algorithm in a heuristic network clustering algorithm. According to the power grid partitioning method based on the line transmission betweenness, the complex problem that source load operation constraint and channel constraint are mutually restrictedand mutually restricted in a traditional geographic partition is solved.

Description

Technical field [0001] The invention belongs to the technical field of power grid division, and in particular relates to a power grid division method based on line transmission dielectric. Background technique [0002] With the continuous expansion of the power grid, the complexity of power grid dispatching and calculation is getting higher and higher. Under this background, it is a way to reduce the complexity to simplify and fully explore the reasonable partitioning of the large power grid and the adjustment and optimization of each partition as the research object. An effective way of source-load regulation potential in the sub-region. The six regional power grids developed in our country based on the principle of hierarchical and zoning have proved that through the appropriate exchange capacity interconnection, it is possible to achieve benefits including peak shaving, peak shifting, and water-fire mutual assistance. Therefore, it is of theoretical and practical value to stu...

Claims

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Application Information

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IPC IPC(8): H02J3/00
Inventor 朱丽萍刘文颖
Owner NORTH CHINA ELECTRIC POWER UNIV (BAODING)
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