Power distribution system coordination planning method by considering renewable resource uncertainty

Abstract

The invention discloses a power distribution system coordination planning method by considering renewable resource uncertainty. The method comprises a distributed power supply, an electric vehicle charging station and an energy storage coordination planning method. The method comprises the following steps: 1, modeling related resources in a planning problem; 2, constructing a distributed power supply, electric vehicle charging station and energy storage coordinated planning model with the minimum network loss as the target, wherein the model is a mixed integer nonlinear planning model; 3, forthe model, performing equivalent processing on the constructed optimization model by adopting an accurate second-order cone relaxation technology, and converting the model into a mixed integer second-order cone programming model for solving; and 4, solving the optimization model obtained in the step 3 to obtain the coordinated planning result of the distributed power supply, the electric vehicle charging station and energy storage. According to the method, the minimum system network loss can be realized.

Description

technical field [0001] The invention belongs to the field of distribution network operation control, and relates to a method for coordinated planning of distributed power sources, electric vehicle charging stations, and energy storage in a power distribution system, and more specifically, to a distribution system that takes into account the uncertainty of renewable resources. Coordinated planning method for electric power supply, electric vehicle charging station, and energy storage. Background technique [0002] With the gradual depletion of global fossil energy and the increasingly severe ecological environment problems, the distributed power generation technology that uses a large number of renewable resources and the electric vehicle industry that uses clean electricity to replace traditional fossil energy have been widely accepted in the past two decades. attention, and has gradually become one of the research hotspots in the power industry. Considering the relatively ...

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Problems solved by technology

[0004] However, in the existing distributed power generation, electric vehicle charging station, and energy storage coordination planning research, there is little consideration of the uncertainty of renewable resources such as wind speed and light intensity, which leads to the construction of an optimization model that is too rough, and the obtained The planning scheme is difficult to be directly applied to engineering practice

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