A method for making short-term plan of a multi-staged cascade warehouse group of a warehouse for undertaking peak shaving task

Abstract

The invention relates to the field of power network planning and dispatching operation, in particular to a method for making short-term plan of a multi-staged cascade warehouse group of a warehouse for undertaking peak shaving task. Firstly, according to the distribution characteristics of the load curve, the fuzzy semi-cascade membership function is used to divide the peak and valley periods, andthe peak-to-valley ratio of the power station is adjusted to determine the typical peak-to-valley curve. Then, the particle swarm optimization algorithm is used to solve the process of power distribution between factories. Finally, in order to reduce the occurrence of waste water in the calculation process, waste water adjustment strategy is adopted to modify the output process of each hydropowerstation, so as to minimize waste water. The method of the invention realizes the output matching of upstream and downstream power stations, balances the relationship between peak shaving and energy storage, and improves the problem that short-term peak shaving is not effective due to complex constraints. The method of the invention has the advantages of clear principle, easy operation and high computational efficiency, and provides a feasible new idea for solving the practical project scheduling problem.

Description

Technical field [0001] The invention relates to the field of power grid planning and dispatching operation, in particular to a short-term plan formulation method of a multi-level cascade library group undertaking peak load regulation tasks. technical background [0002] Increasing load peak-to-valley difference and continuous production of intermittent energy put huge peak-shaving pressure on short-term power grid dispatch. As a high-quality peak-shaving power source, hydropower plays a role in ensuring the safe, stable and economical operation of my country’s power system Plays an increasingly important role. Most of the river basins in my country adopt the "one storage and multi-level" or "multi-bank and multi-level" development, that is, there are one or more leading power stations with good regulation capacity in the upstream, and multiple power stations with small storage capacity, high water head and poor regulation capacity in the downstream. Make full use of the regulation...

AI Technical Summary

Problems solved by technology

[0004] The technical problem to be solved by the present invention is to provide a short-term planning method for one-storage and multi-level cascade storage group undertaking peak-shaving tasks, and to propose a "one-storage and multi-level" method based on fuzzy identification of "peak and valley periods" and improved cascade energy storage A rapid generation method for the short-term peak-shaving plan of cascade hydropower station groups, in order to reasonably arrange the power generation plan of the upstream and downstream power stations, balance the relationship between peak-shaving and energy storage, and solve the problem that the mathematical planning method is not time-sensitive

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