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A short-term distribution network planning method based on maximum power supply capacity

A technology with maximum power supply capacity and power supply capacity, applied in the power grid field, it can solve the problems of not considering the utilization rate of power grid equipment and the huge impact of the distribution network automation level, so as to improve the uneven load distribution and ensure reliability. the effect of balancing load distribution

Active Publication Date: 2020-07-14
GUIZHOU POWER GRID CO LTD
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Problems solved by technology

The traditional planning method is mainly to build new lines or install new equipment on the basis of the current power grid, without considering how to improve the utilization rate of the original equipment of the power grid, and at the same time, it does not take into account the huge impact of the increasing automation level of the distribution network on the distribution network. influences

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  • A short-term distribution network planning method based on maximum power supply capacity
  • A short-term distribution network planning method based on maximum power supply capacity
  • A short-term distribution network planning method based on maximum power supply capacity

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Embodiment Construction

[0042] Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. It should be understood that the preferred embodiments are only for illustrating the present invention, but not for limiting the protection scope of the present invention.

[0043] figure 1 It is a schematic flow chart of the method of the present invention, as shown in the figure, the present invention generally includes three major steps: first, carry out the transformation of line switch position and line adjustment, by optimizing the position of line switch, part of the heavy-duty line The load is transferred to the light-loaded line, so that the load distribution of the distribution network is more even.

[0044] Then calculate the power supply capacity of each transformer in the distribution network, and analyze the bottlenecks that limit the improvement of power supply capacity, and take corresponding transformation measures accord...

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Abstract

The invention discloses a power distribution network short-range planning method based on maximum power supply capability. The power distribution network short-range planning method based on maximum power supply capability includes the steps: reconstructing the line switch position and the line adjustment, transferring part of load of a heavy load line to a light load line by optimizing the position of the line switch so as to enable load distribution of the power distribution network to be relatively more uniform; calculating the power supply capability of each transformer in the power distribution network, analyzing the bottleneck of limiting improvement of the power supply capability, and taking the corresponding reconstruction measure according to different types of bottlenecks to achieve the aim of improving the maximum power supply capability of the power distribution network; and finally performing reliability analysis on the current power distribution network. If the reliability does not satisfy the requirement, the aim of improving reliability can be achieved by upgrading the lines, improving the reactive compensation capacity and increasing contact lines. The power distribution network short-range planning method based on maximum power supply capability can realize improvement of the utilization rate of power distribution network equipment and no reduction of the reliability of the power distribution network and can also improve the power supply capability of the power distribution network at the same time, by balancing load distribution of the power distributionnetwork, and suitably upgrading and reconstructing original equipment.

Description

technical field [0001] The invention relates to the technical field of power grids, in particular to a method for short-term planning of distribution networks based on maximum power supply capacity. Background technique [0002] With the rapid development of social economy and the continuous acceleration of urbanization process, while the load of urban distribution network is growing rapidly, the cost of upgrading and construction of power grid is also increasing. The traditional planning method is mainly to build new lines or install new equipment on the basis of the current power grid, without considering how to improve the utilization rate of the original equipment of the power grid, and at the same time, it does not take into account the huge impact of the increasing automation level of the distribution network on the distribution network. influences. Therefore, it is feasible to use the distribution network automation device in the smart grid environment to improve the...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02J3/00H02J3/18
CPCY02E40/30
Inventor 李颖梁海峰刘应明刘建华吕波刘峰汤铁军余家志龙腾江刘世良
Owner GUIZHOU POWER GRID CO LTD
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