Towards a more rigorous and practical unit commitment by Lagrangian relaxation
Journal Article
·
· IEEE Trans. Power Syst.; (United States)
A new Lagrangian relaxation algorithm for unit commitment is proposed. The algorithm proceeds in three phases. In the first phase, the Lagrangian dual of the unit commitment is maximized with standard subgradient techniques. The second phase finds a reserve-feasible dual solution, followed by a third phase of economic dispatch. A mathematically-based, systematic and generally applicable procedure to search for a reserve-feasible dual solution is presented in detail. The proposed algorithm has been tested on systems of up to 100 units to be scheduled over 168 hours, giving a reliable performance and low execution times. Both spinning and time-limited reserve constraints are treated.
- Research Organization:
- Dept. of Electrical Engineering, McGill Univ., Montreal PQ H3A 2A7 (CA)
- OSTI ID:
- 6163601
- Journal Information:
- IEEE Trans. Power Syst.; (United States), Journal Name: IEEE Trans. Power Syst.; (United States) Vol. 3:2; ISSN ITPSE
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
200300* -- Electric Power Engineering-- Power Transmission & Distribution-- (-1989)
24 POWER TRANSMISSION AND DISTRIBUTION
42 ENGINEERING
420800 -- Engineering-- Electronic Circuits & Devices-- (-1989)
99 GENERAL AND MISCELLANEOUS
990220 -- Computers
Computerized Models
& Computer Programs-- (1987-1989)
ALGORITHMS
COMPUTERIZED CONTROL SYSTEMS
CONTROL SYSTEMS
DIFFERENTIAL EQUATIONS
EFFICIENCY
ENERGY EFFICIENCY
ENERGY SYSTEMS
EQUATIONS
LAGRANGE EQUATIONS
LOAD MANAGEMENT
MANAGEMENT
MATHEMATICAL LOGIC
PARTIAL DIFFERENTIAL EQUATIONS
POWER SYSTEMS
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24 POWER TRANSMISSION AND DISTRIBUTION
42 ENGINEERING
420800 -- Engineering-- Electronic Circuits & Devices-- (-1989)
99 GENERAL AND MISCELLANEOUS
990220 -- Computers
Computerized Models
& Computer Programs-- (1987-1989)
ALGORITHMS
COMPUTERIZED CONTROL SYSTEMS
CONTROL SYSTEMS
DIFFERENTIAL EQUATIONS
EFFICIENCY
ENERGY EFFICIENCY
ENERGY SYSTEMS
EQUATIONS
LAGRANGE EQUATIONS
LOAD MANAGEMENT
MANAGEMENT
MATHEMATICAL LOGIC
PARTIAL DIFFERENTIAL EQUATIONS
POWER SYSTEMS
RELAXATION