Optimal uncertain intervals in unit commitment with wind power

It is important to select an appropriate representation of wind power uncertainty for unit commitment (UC). Unlike previous studies predefining the scope of uncertainty, this paper presents a method to co-optimize wind power uncertain intervals and unit commitment. The proposed method is aiming to s...

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Bibliographic Details
Published in2016 IEEE Power and Energy Society General Meeting (PESGM) pp. 1 - 5
Main Authors Ying Wang, Kaifeng Zhang, Zhi Zhou, Botterud, Audun, Hongwei Han, Qia Ding
Format Conference Proceeding
LanguageEnglish
Published IEEE 01.07.2016
Subjects
confidence intervals
Economics
MILP
optimal interval
Power systems
Reliability
Uncertainty
unit commitment
Upper bound
Wind forecasting
Wind power forecast uncertainty
Wind power generation
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Summary:It is important to select an appropriate representation of wind power uncertainty for unit commitment (UC). Unlike previous studies predefining the scope of uncertainty, this paper presents a method to co-optimize wind power uncertain intervals and unit commitment. The proposed method is aiming to select the optimal wind power uncertain intervals and achieve the optimal trade-off between economics and reliability in power system operation. An interval UC considering the costs of expected energy not served (EENS) and expected wind power curtailment (EWC) is modeled. Then, a reformulation and linearization method is proposed, transforming the model to a MILP problem. Numerical studies on a six-bus system and the modified IEEE 118-bus system illustrate the effectiveness of the proposed model.
ISSN:1944-9933
DOI:10.1109/PESGM.2016.7741172