Hydropower station short-term multi-target power generation plan compilation method and system for peak load regulation of a power grid

Abstract

The invention discloses a hydropower station short-term multi-target power generation plan making method and system for power grid peak regulation, and the method comprises the steps: firstly, building a cascade hydropower station short-term multi-target power generation plan making model; Determining a power station economic operation mode according to the input condition; Randomly generating a plurality of particles in the feasible space, determining an individual extreme value of each particle based on an objective function value of each particle, and storing a part of particles which are not mutually dominated in an external archive set; Updating the position and speed of each particle, randomly selecting a part of particles for polynomial variation, repairing the infeasible solution,and calculating the objective function value of each particle again; Updating the individual extremum of each particle according to the re-calculated objective function value of each particle; And updating the external archive set according to the dominance relationship of the particles and the crowding distance, and if a preset termination condition is met, outputting the external archive set soas to obtain a global extreme value. The peak regulation pressure of the system can be effectively reduced, and the power supply quality is improved. The power grid can safely, stably and economicallyoperate.

Description

technical field [0001] The invention belongs to the field of water conservancy dispatching, and more specifically relates to a short-term multi-objective power generation plan preparation method and system for a hydropower station responding to power grid peak regulation. Background technique [0002] With the rapid development of my country's power grid construction and the continuous expansion of the grid scale, the demand for safe and stable economic operation of the power grid is getting higher and higher, and the problem of insufficient peak-shaving capacity of the power system has become increasingly prominent. The preparation of short-term power generation plans for cascade hydropower stations is an important part of the work of the water regulation department of the cascade centralized control center in the basin, and belongs to the model of "determining electricity by water". It usually takes the total cascade power generation, the optimal power generation benefit o...

AI Technical Summary

Problems solved by technology

[0004] Aiming at the above defects or improvement needs of the prior art, the present invention provides a short-term multi-objective power generation plan preparation method and system for hydropower stations for power grid peak regulation, thereby solving the problem that the existing generation preparation method ignores both power generation and peak regulation The overall coordination relationship among them leads to technical problems such as water abandonment and peak shaving

Images