Multi-objective power grid planning method and device considering new energy consumption and environmental benefits

Abstract

The invention provides a multi-objective power grid planning method and device considering new energy consumption and environmental benefits. First, the power grid development cost, the economic loss of abandoning wind and solar energy and the amount of power grid pollution are calculated; The optimal solution set of the conditions realizes the multi-objective power grid planning. The multi-objective power grid planning model is constructed with the goal of minimizing grid development cost, economic loss of wind and solar power curtailment, and grid pollution. The technical scheme provided by the present invention takes into account the influence of two new energy sources, wind and solar on power grid planning, and at the same time, on the basis of considering the minimum total cost of power grid development, reduces economic losses caused by abandoning wind and solar energy, and maximizes environmental benefits. On the basis of ensuring the safe and stable operation of the power grid, both economic and environmental benefits can be achieved simultaneously.

Description

technical field [0001] The invention relates to the field of power grid planning, in particular to a multi-objective power grid planning method and device considering new energy consumption and environmental benefits. Background technique [0002] With the continuous development of the economy, my country's energy shortage and environmental and climate crisis have become increasingly prominent. Vigorously developing and utilizing new energy is an effective way to deal with the current global energy, environment and climate crisis. It is also an effective way to promote energy conservation and emission reduction to achieve sustainable energy supply and environmental effective way to protect. Although the advantages of new energy sources such as wind photovoltaics are prominent, the inherent uncertainty poses new challenges to power grid planning. [0003] Current research mainly focuses on issues related to grid planning considering wind power access, and has achieved a lot o...

AI Technical Summary

Problems solved by technology

In the existing technology, there is an objective function with the shortest total length of the line and the smallest flicker value at the public access point of the wind farm to finally realize the multi-objective planning of the power grid containing the wind farm, but this technology does not consider the connection of photovoltaic units. The impact of grid connection on grid planning

There is also a technology that builds a joint optimization planning model of transmission lines connected to multi-objective wind farms and power grids, but this joint optimization planning model does not consider the economic losses caused by wind abandonment

There are other technologies that consider the impact of wind power and photovoltaics on grid planning, but only establish a single-objective planning model with the objective function of minimizing the total investment cost of the line.

The above-mentioned related technologies have little consideration of the uncertainty of photovoltaic power station access to the grid, and the impact on grid planning in the case of wind and solar grid integration, few factors are considered, and the scope of application is small

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