A calculation method for primary frequency regulation performance of deep peak regulation units

Abstract

The invention discloses a primary frequency modulation performance calculation method of a deep peak regulation unit. Aiming at the problem that primary frequency modulation performance of a thermal power generating unit is difficult to accurately calculate, based on a dynamic double-overshoot improved model structure, unknown parameters in a model are solved by combining an improved swarm optimization algorithm with better global search capability, data-driven optimization identification calculation is carried out on the primary frequency modulation performance of the thermal power generatingunit, and a specific calculation method for the primary frequency modulation performance is obtained. In order to eliminate modeling errors caused by manual selection of steady-state values, the steady-state values are fused into identification parameters, so that the problem that initial and end states of conventional model identification need to reach steady states is solved; and the method ishigher in calculation precision, and provides a theoretical basis for better understanding the primary frequency modulation output change condition of the unit and for the assessment and determinationof the primary frequency modulation of the deep peak regulation unit by the power grid.

Description

technical field [0001] The invention belongs to the technical field of thermal power engineering and automatic control, and in particular relates to a method for calculating the primary frequency regulation performance of a deep peak regulation unit. Background technique [0002] In order to improve the consumption of new energy power, it is imperative for thermal power units to perform deep peak-shaving operation. The deep peak-shaving operation of the unit is still in its infancy, and many literatures have carried out more analysis and experimental research on the economy and safety of the unit in the deep peak-shaving operation state. However, after the deep peak-shaving operation of the unit, it should be The functions of load regulation and frequency regulation have not been fully emphasized, and the problems that the units and the power grid will face after deep peak regulation have not been fully exposed. [0003] With the gradual completion and operation of UHV tran...

AI Technical Summary

Problems solved by technology

The deep peak-shaving operation of the unit is still in its infancy, and many literatures have carried out more analysis and experimental research on the economy and safety of the unit in the deep peak-shaving operation state. However, after the deep peak-shaving operation of the unit, it should be The functions of load regulation and frequency regulation have not been fully valued, and the problems that the units and the power grid will face after deep peak regulation have not been fully exposed

Images