Research of modeling and control strategies of multi-type generators peaking

Abstract

Multi-type generators peaking problem has always been difficult to the researchers, since there are different generator models and complex constraints. In this paper, a decoupled multi-generator peaking model is proposed and used for control strategies. Also, the peaking control strategies are acquired through quantitative calculation and qualitative analysis. Quantitative calculation gives the output schedule for each unit or plant, while qualitative analysis analyzes the influence of different factors on peaking strategies, and the coordination method of various source types. Deep peaking of thermal units is taken into consideration and a bi-level optimization model is used to solve the thermal subsystem. The index of equivalent start-stop peaking capacity is defined, based on which the coordination method of multi-power peaking strategies is proposed.