A power distribution network renewable energy power generation cluster access planning method

Abstract

The invention relates to a power distribution network renewable energy power generation cluster access planning method. An upper layer planning model and a lower layer scheduling model are adopted, and the upper layer planning model takes maximum revenue of a renewable energy power generation investor as a target; an objective function of the lower-layer scheduling model comprises a power balancedegree index, the adjustment cost of a power distribution company and the active power reduction amount of renewable energy power generation; the adjustment measures comprise the action of a tie lineswitch, the tap action of an on-load voltage regulation transformer and the active power reduction and reactive power compensation of renewable energy power generation; the C-Vine Copula model is usedfor modeling according to the timing correlation between load and renewable energy resources,, and a typical planning scene considering load and resource correlation is generated by combining a Latinhypercube sampling method.

Description

technical field [0001] The invention relates to a planning method for connecting renewable energy power generation clusters in a distribution network considering load and time sequence correlation of resources. Background technique [0002] The connection of renewable energy power generation to the distribution network plays a positive role in saving energy and reducing carbon emissions. However, when renewable energy power generation accounts for 20%-30% of the total power generation of various power sources, the intermittent and random nature of renewable energy power generation will lead to problems such as system overvoltage and power reverse. Therefore, in order to improve the acceptance capacity of the distribution network for renewable energy generation, it is necessary to consider the impact of renewable energy generation on system operation in the planning stage. [0003] Aiming at the problem of renewable energy power generation planning in distribution network, m...

AI Technical Summary

Problems solved by technology

This type of method considers that the distribution networks under different substations are independent of each other, and does not consider the connection and influence between the operation of multiple substations in the system.

[0007] (2) In the process of renewable energy power generation planning, the influence of various adjustment measures in the active distribution network, especially the network reconfiguration on the change of power supply support capacity between multiple substations, is not fully considered

[0008] (3) Existing technology methods can only describe the linear correlation between load and resources, and the modeling between variables with asymmetric and nonlinear correlations is not accurate enough

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