Power grid new energy consumption capability evaluation calculation method, device and system based on multi-scene generation technology

Abstract

The invention discloses a power grid new energy consumption capability evaluation calculation method, device and system based on a multi-scene generation technology, and the method comprises the steps: determining a power grid range and a calculation period of power grid new energy consumption capability evaluation calculation needing to be carried out, and other calculation boundaries; generatinga large number of combined scenes containing multiple new energy power plants through free permutation and combination among the fields; adopting a scene reduction technology of a backward reductionmethod, merging similar scenes, reducing the number of combined scenes, and generating typical combined scenes; carrying out the similar time period merging analysis, and reducing the number of time periods entering optimization; for each typical combination scene, establishing an SCUC dimension reduction model after time period merging, and solving to obtain a unit combination result; establishing an all-time SCED model based on the unit combination result and solving, and finally obtaining a new energy consumption result under each typical combination scene, thereby finishing power grid newenergy consumption capability evaluation calculation based on a multi-scene generation technology. According to the invention, on the premise of ensuring the safety and stability of the system, the effectiveness and referenceability of the consumption capability evaluation result are improved.

Description

technical field [0001] The invention belongs to the technical field of electric power system dispatching automation, and relates to a calculation method for evaluating and calculating the new energy consumption capacity of a power grid, in particular to a calculation method for evaluating and calculating the new energy consumption capacity of a power grid based on a multi-scenario generation technology. Background technique [0002] The penetration rate of new energy in the power system is gradually increasing, which makes the dispatching resources in the system more abundant and the operation mode more and more complicated. However, the traditional distribution network still has problems such as insufficient new energy consumption capacity, which seriously restricts the high penetration of new energy. , which is not conducive to the optimization and adjustment of the energy structure. Moreover, new energy grid integration puts forward higher requirements on the power system...

AI Technical Summary

Problems solved by technology

[0007] The random error of new energy forecast is the key factor that restricts whether the grid new energy consumption capacity evaluation calculation model based on multi-scenario generation technology can obtain the optimal decision-making scheme. How to reasonably consider and describe the multiple new energy in the original dispatching mode Combining scenarios is a problem that needs to be paid attention to in the research of optimal operation scheduling with large-scale new energy sources; on the other hand, the traditional calculation model for evaluating the new energy consumption capacity of power grids based on multi-scenario generation technology does not take into account the SCUC problem, making the optimization results inaccurate. Guarantee the safe operation of the power grid

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