Method for determining capacity of pumped storage power station

Abstract

The invention discloses a method for determining capacity of a pumped storage power station. The method comprises the following steps: calculating load prediction data in preset time according to historical load data, calculating the wind-electricity power prediction data according to historical wind-electricity power data, and calculating call wire power prediction data according to historical call wire power data; determining the boundary conditions; calculating the equivalent load prediction data on the day according to the load prediction data on the hth day in the preset time, the wind-electricity power prediction data and the call wire power prediction data; determining the maximum technical output requirements on the day in the conventional unit; determining the start-up mode on the day in the conventional unit according to the maximum technical output requirements on the day and the unit operation constraints; determining the minimum technical output on the day in the conventional unit according to the start-up mode on the day, and determining the wind curtailment electric quantity at each point on the day according to the minimum technical output on the day and the equivalent load prediction data on the day; and repeating the previous steps, acquiring the wind curtailment electric quantity data on each day throughout the year, and determining the capacity of a pumped storage power station according to the wind curtailment electric quantity data.

Description

technical field [0001] The invention relates to the technical field of wind power peak regulation, in particular to a method for determining the capacity of a pumped storage power station. Background technique [0002] With the rapid development of wind power and other new energy power generation, the proportion of new energy in the power system is getting higher and higher. The intermittent, random and fluctuating output of new energy power generation has brought great pressure to the peak regulation of the power system. . In the three northern regions (North China, Northeast China and Northwest my country) where wind resources are abundant in China, the proportion of thermal power cogeneration units in thermal power installed capacity is too high, the proportion of power sources with good regulation capabilities such as hydropower, pumped storage and gas is low, and the peak-shaving capacity of power sources is insufficient. Moreover, the winter heating period in the abov...

AI Technical Summary

Problems solved by technology

[0005] The invention provides a method for determining the capacity of a pumped storage power station to at least solve the problem that the capacity planning of the current pumped storage power station is not perfect, and the problem of the impact of large-scale wind power access on the peak regulation demand of the power system is not considered

Images