A regional power grid planning system and method containing high-penetration intermittent energy sources

Abstract

The invention discloses a regional power grid planning system containing high permeability intermittent energy and a method thereof, and the system provides multi-objective and multi-constraint selections and has high efficiency. According to the system and the method, different planning requirements are satisfied through providing optional multiple objectives, multiple constraints and multiple algorithms, at the same time, the application of a stochastic production simulation parsing algorithm of a power grid to the generation process of a planning scheme is considered, and quick solution can be carried out. According to the system and the method, an intermittent power supply which is equivalent to a normal unit assembly in a method processing system is employed, and the computational efficiency of the stochastic production simulation is raised obviously. At the same time, a weighing method is employed to process multiple objectives, the feedback of a follow-up evaluation decision-making process can be received at the same time, and the constant revision of the scheme is facilitated. Finally, a solution set sent by the regional power grid comprehensive planning method is a noninferior solution after pareto optimization, thus the improvement of the overall effectiveness of the solution set on the basis that a solution flexibility is maintained is assisted, and the follow-up planning work process is facilitated.

Description

technical field [0001] The invention relates to the field of power grid planning, in particular to a regional power grid planning system and method containing high-permeability intermittent energy sources. Background technique [0002] With the rapid development of wind power-based intermittent power generation in China, the grid-connected capacity of this type of power will increase significantly, and its intermittency and volatility will have a significant impact on the operation and planning of the power grid. Therefore, it is necessary to consider the influence of large-scale intermittent power supply at the same time in the planning process. [0003] Because power grid planning problems may face different consideration angles and involve different goals and requirements, their expression needs for planning models are often different, and corresponding to different models and systems, the performance of various solving methods is often also different. The same, so it is...

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Problems solved by technology

[0003] Because power grid planning problems may face different consideration angles and involve different goals and requirements, their expression needs for planning models are often different, and corresponding to different models and systems, the performance of various solving methods is often also different. The same, so it is difficult to adapt to the above-mentioned diverse requirements with a single objective, constraint expression and solution method

[0004] Considering the reliability analysis of intermittent power supply, the simulation method is mainly used at present, which may bring a large calculation burden. The random production simulation analysis algorithm can perform faster calculations, but most of the random production simulation analysis algorithms Unable to take into account the constraints of the network

In the stochastic production simulation analysis algorithm, intermittent energy can be treated as a multi-state unit equivalently, but this will also bring additional calculation burden

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