Distribution network optimization method adapted to large-capacity load transfer in distribution network

Abstract

The invention relates to a power distribution network optimization method adapting to power distribution network high capacity load transfer, comprising steps of analyzing a load fluctuation curve of a regional power distribution network and a complementary load characteristic curve of the regional power distribution network and an adjacent power distribution network of, obtaining the two characteristics of the power distribution network high capacity load transfer which are that the load fluctuation of the regional power distribution network is relatively big and the complementarity of the adjuacent regional power distribution network is strong, determining the characteristics satisfied by the characteristics of the power distribution network load, if two above characteristics are both satisfied, adopting a spatial transfer optimization method to optimize, if only the characteristic that the load fluctuation of the regional power distribution is big is satisfied, adopting the time transfer optimization to optimize. The power distribution network optimization method adapting to power distribution network high capacity load transfer groups the power distribution network high capacity load transfer into two categories, enables the distribution of the load to be more balance, improves the power distribution network planning and the operation level, has the directive significance, and improves the capability of the power distribution network to deal with the high capacity load transfer.

Description

technical field [0001] The invention belongs to the technical field of distribution network optimization, and in particular relates to a distribution network optimization method adapted to large-capacity load transfer of the distribution network. Background technique [0002] In recent years, with the improvement of people's living standards and the rapid growth of power load, the peak-to-valley difference of power grid load has gradually increased. The problem of peak shaving is more prominent, and it also causes a series of difficulties for power dispatching. In particular, the distribution network load is flexible and changeable. The load in many places has large fluctuations and transfer characteristics, which brings great challenges to the planning and operation of the distribution network. In-depth research on large-capacity load transfer is required. The impact and countermeasures on the distribution network, distribution network planning and operation mode arrangeme...

AI Technical Summary

Problems solved by technology

On the one hand, the load transfer and fluctuation of the distribution network are relatively large, and the load rate of transformers in some areas varies greatly, which can reach more than 50% or even higher. At present, power distribution equipment is planned and constructed according to the peak load of the power grid, but the peak load of the power grid The duration is short, resulting in a low utilization rate of power distribution equipment assets planned and constructed to meet the peak load demand, resulting in a certain waste of investment; It is becoming more and more difficult to obtain substations and feeder corridors. It is necessary to explore new planning methods to rationally optimize the current distribution network and optimize the operation mode of the distribution network to improve the capacity of the current power grid to accept loads.

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