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

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...

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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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