Open AccessImproving wind power utilisation under stormy weather condition by risk‐limiting unit commitment
Author(s) -
Qin Zhijun,
Cai Ximing,
Hou Yunhe
Publication year - 2017
Publication title -
the journal of engineering
Language(s) - English
Resource type - Journals
ISSN - 2051-3305
DOI - 10.1049/joe.2017.0635
Subject(s) - limiting , wind power , power system simulation , portfolio , wind speed , computer science , unit (ring theory) , reliability engineering , electricity generation , power (physics) , time horizon , electric power system , automotive engineering , meteorology , engineering , mathematical optimization , business , electrical engineering , mathematics , finance , geography , mechanical engineering , physics , mathematics education , quantum mechanics
Wind power generation has constituted a major body of generation portfolio in many countries. In stormy weather conditions, however, wind power generation would be curtailed due to the over‐speed protection of wind turbines. In this study, the authors propose to apply the risk‐limiting unit commitment (UC) in a rolling framework to improve the efficient utilisation of wind power. The proposed method includes three modules, namely, day‐ahead UC, hourly‐ahead UC, and real‐time load shedding. The first module provides the baseline of hourly dispatch, whereas the latter two serve as recourse means applied during stormy event unfolding. Illustrative examples are provided, demonstrating that the proposed method will reduce the overall generation cost of the time horizon under consideration, as compared to conservative dispatch methods, by postponing the timing of proactive wind curtailment.