A practical resource scheduling with OPF constraints

Conference · Sun Dec 31 04:00:00 EST 1995

OSTI ID:367361

Abdul-Rahman, K H; Shahidehpour, S M ^[1]; Aganagic, M; Mokhtari, S ^[2]

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1. Illinois Inst. of Tech., Chicago, IL (United States). Dept. of Electrical and Computer Engineering
2. Siemens Energy and Automation, Brooklyn Park, MN (United States)

This paper presents an efficient approach to short term resource scheduling based on the augmented Lagrangian relaxation method. The problem is divided into two stages, the commitment stage and the constrained economic dispatch stage. The proposed mathematical model incorporates optimal power flow (OPF) constraints in the unit commitment stage. By OPF constrains, the authors refer to the relevant active power constraints that are incorporated in the constrained economic dispatch stage (i.e. transmission capacity constraints, fuel and various regulated emission requirements). The inclusion of OPF constraints in the commitment stage will improve the feasibility of the constrained economic dispatch solution. Other unit commitment constraints such as spinning and operating reserve requirements, power balance as well as other relevant local constraints (i.e. unit ramping rates, upper and lower generation limits, minimum up and down times) are taken into account in the proposed model. As the authors deal with a larger number of constraints, a more rigorous method is introduced for updating Lagrange multipliers to improve the solution convergence. A software package which addresses energy management systems requirements is developed and tested.

• OSTI ID: 367361
• Report Number(s): CONF-950525--
• Country of Publication: United States
• Language: English

Related Subjects

24 POWER TRANSMISSION AND DISTRIBUTION
99 GENERAL AND MISCELLANEOUS
COMPUTER CALCULATIONS
LAGRANGIAN FUNCTION
OPERATION
POWER PLANTS
POWER SYSTEMS