Search Results - subject:"Unit commitment"

Scenario-based security-constrained hydrothermal coordination with volatile wind power generation

Karami, M.; Shayanfar, H.A.; Aghaei, J.; Ahmadi, A. - In: Renewable and Sustainable Energy Reviews 28 (2013) C, pp. 726-737

System Operators (ISOs) execute the Security-Constrained Unit Commitment (SCUC) program to plan a secure and economical …

Persistent link: https://www.econbiz.de/10010709365

Prices stabilization for inexact unit-commitment problems

Zaourar, Sofia; Malick, Jérôme - In: Computational Statistics 78 (2013) 3, pp. 341-359

A widespread and successful approach to tackle unit-commitment problems is constraint decomposition: by dualizing the …

Persistent link: https://www.econbiz.de/10010759263

Prices stabilization for inexact unit-commitment problems

Zaourar, Sofia; Malick, Jérôme - In: Mathematical methods of operations research 78 (2013) 3, pp. 341-359

Persistent link: https://www.econbiz.de/10010227474

The contribution of heat storage to the profitable operation of combined heat and power plants in liberalized electricity markets

Christidis, Andreas; Koch, Christoph; Pottel, Lothar; … - In: Energy 41 (2012) 1, pp. 75-82

Combined heat and power (CHP) plants are characterized by high fuel efficiency and are therefore usually the thermal power producing units of choice within a district heating network. The operation of CHP units is typically controlled by the current heat demand and thus delimits the range of...

Persistent link: https://www.econbiz.de/10010807540

Designing time-of-use program based on stochastic security constrained unit commitment considering reliability index

Nikzad, Mehdi; Mozafari, Babak; Bashirvand, Mahdi; … - In: Energy 41 (2012) 1, pp. 541-548

Recently in electricity markets, a massive focus has been made on setting up opportunities for participating demand side. Such opportunities, also known as demand response (DR) options, are triggered by either a grid reliability problem or high electricity prices. Two important challenges that...

Persistent link: https://www.econbiz.de/10010807722

Optimal and Adaptive Operation of a Hydropower System with Unit Commitment and Water Quality Constraints

Ferreira, Andre; Teegavarapu, Ramesh - In: Water Resources Management 26 (2012) 3, pp. 707-732

programming (MINLP) with binary variables adopted for incorporating unit commitment constraints and adaptive real-time operations … intractability problems associated with combinatorial domain of integer variables in the unit commitment formulation. The adaptive … operation formulation in conjunction with the solution of turbine unit commitment problem yielded more reliable solutions …

Persistent link: https://www.econbiz.de/10010847375

Subhourly unit commitment with feasible energy delivery constraints

Yang, Yuanchao; Wang, Jianhui; Guan, Xiaohong; Zhai, Qiaozhu - In: Applied Energy 96 (2012) C, pp. 245-252

Unit commitment (UC) is one of the most important daily tasks that independent system operators or regional …

Persistent link: https://www.econbiz.de/10011040844

Generation risk assessment in volatile conditions with wind, hydro, and natural gas units

Sahin, Cem; Shahidehpour, Mohammad; Erkmen, Ismet - In: Applied Energy 96 (2012) C, pp. 4-11

model applies market price forecasts to the risk-constrained stochastic price-based unit commitment (PBUC) for calculating …

Persistent link: https://www.econbiz.de/10010702522

Reformulation of U.S. Day-Ahead Wholesale Power Markets for Improved Intertermporal Operations

Tesfatsion, Leigh; Aliprantis, Dionysios - Department of Economics, Iowa State University - 2012

U.S. Day-Ahead Markets (DAMs) for wholesale electric power managed by Independent System Operators (ISOs) encompass more than 60% of U.S. generating capacity. The current design of these DAMs encourages a focus on decisions that minimize immediate net costs without explicit consideration of...

Persistent link: https://www.econbiz.de/10010660243

THERMAL GENERATION ASSET VALUATION PROBLEMS IN A COMPETITIVE MARKET

Zhu, Wei - 2004

With deregulation in the electric power industry, traditionalapproaches for minimizing production costs have become unfit forthe present competitive environment. Owners of generationassets must now consider price uncertainty in solving unitcommitment problems for scheduling and operating their...

Persistent link: https://www.econbiz.de/10009450626