AUTHOR=Zhou Yunhai , Jia Qian , Xin Yuejie , Zhang Tao 

TITLE=Intraday Scheduling of a System With Following Units Based on Two-Stage Stochastic Programming

JOURNAL=Frontiers in Energy Research

VOLUME=Volume 10 - 2022

YEAR=2022

URL=https://www.frontiersin.org/journals/energy-research/articles/10.3389/fenrg.2022.873377

DOI=10.3389/fenrg.2022.873377

ISSN=2296-598X

ABSTRACT=In order to further reduce the impact of new energy forecast errors on the system scheduling plan. This paper proposes an intraday rolling scheduling strategy for systems with follower units based on two-stage stochastic programming. Firstly, the nonparametric kernel density estimation method is used to simulate the randomness of wind and scenery errors. The first stage is to pre-decide the operating state of the follower unit with the goal of minimizing the start-stop cost of the fast unit. Then, based on the determined start-stop information in the second stage, the active power output of each unit is optimized with the goal of the lowest expected cost of the overall system operation. Finally, through the analysis of practical examples, it is verified that the built model can reduce the number of start and stop of the following units, reduce the operating cost of the system and increase the rate of new energy on-grid, which has more practical application significance.