Power transmission network planning method considering continuous load curve demand response characteristics

Abstract

The invention relates to a power transmission network planning method considering continuous load curve demand response characteristics, and the method comprises the following steps: S1, building a demand response model based on a continuous load curve; s2, according to the demand response model, establishing a power transmission network economic optimal planning model considering demand response; and S3, based on a mixed integer linear programming solving method, obtaining an optimal solution of the power transmission network economic optimal planning model considering the demand response, and obtaining a power transmission network planning result. According to the continuous load curve segmentation simulation method provided by the invention, a nonlinear load curve is approximated by using some step blocks with fixed load levels, the problem scale is effectively reduced, and the planning efficiency is improved.

Description

technical field [0001] The invention belongs to the field of transmission network planning, and in particular relates to a transmission network planning method considering the demand response characteristics of continuous load curves. Background technique [0002] With the development of smart grid, the potential of the demand side is gradually being explored. Through reasonable scheduling and control of loads, power system operation will have higher adjustability, which can improve system operating efficiency, optimize investment and construction, improve new energy consumption, and stabilize load curves. [0003] At present, the impact of demand response is often ignored in transmission network planning, mainly because considering demand response in the planning stage will bring a huge amount of calculation and increase the calculation burden. However, with the continuous excavation of the potential of the demand side, its influence on the optimal decision-making of trans...

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Problems solved by technology

[0003] At present, the impact of demand response is often ignored in transmission network planning, mainly because considering demand response in the planning stage will bring a huge amount of calculation and increase the calculation burden

However, with the continuous excavation of the potential of the demand side, its influence on the optimal decision-making of transmission network investment is gradually deepening. The traditional transmission network planning model is no longer fully applicable. It is necessary to establish a new transmission network planning method that considers demand response.

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