A multi-timescale hybrid stochastic/deterministic generation scheduling framework with flexiramp and cycliramp costs

Mohamed, Shaaban and Tan, Wen-Shan and Md Pauzi, Abdullah (2018) A multi-timescale hybrid stochastic/deterministic generation scheduling framework with flexiramp and cycliramp costs. International Journal of Electrical Power and Energy Systems, 99. pp. 585-593. ISSN 0142-0615

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Flexible ramping products (flexiramp), provided by entitled resources to meet net demand forecast error, are the underpinning for the accommodation of the substantial uncertainties associated with variable wind power. This paper proposes an enhanced flexiramp modeling approach, cast in a hybrid stochastic/deterministic multi-timescale framework. The framework employs a chance-constrained day-ahead scheduling method, as well as deterministic scheduling on intra-hourly basis (real-time scheduling), to allow optimal procurement planning of the flexiramp products in both timescales. A stepwise and piecewise demand price curve is also proposed to calculate the flexiramp surplus procurement price. Non-generation resource (NGR), referring to energy storage, is implemented to provide extra flexibility. Additionally, cycling ramping cost (cycliramp), introduced to model operational and maintenance costs and reduce the wear and tear of generators, is also included as a penalty. Numerical tests are conducted on 6-bus and 118-bus systems. Results demonstrate the merits of the proposed scheduling model as well as the effects of flexiramp and cycliramp costs in the multi-timescale scheduling. © 2018 Elsevier Ltd

Item Type: Article
Uncontrolled Keywords: Flexible ramping product, Generation unit ramping cost, Ramp market, Renewable energy integration, Mixed-integer linear programming, unimas, university, universiti, Borneo, Malaysia, Sarawak, Kuching, Samarahan, ipta, education, , research, Universiti Malaysia Sarawak.
Subjects: T Technology > TK Electrical engineering. Electronics Nuclear engineering
Divisions: Academic Faculties, Institutes and Centres > Faculty of Engineering
Depositing User: Ibrahim
Date Deposited: 16 Mar 2018 07:12
Last Modified: 25 Apr 2021 22:28
URI: http://ir.unimas.my/id/eprint/19832

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