A method for solving the fuel constrained unit commitment problem
The unit commitment problem involves finding the hourly commitment schedule for the thermal units of an electrical system, and their associated generation, over a period of up to a week. For some utilities, contractual or other factors limit the amount of fuel available to certain of the units or plants. This paper describes a new method which solves the unit commitment problem in the presence of fuel constraints. The method uses a Lagrangian decomposition and successive approximation technique for solving the unit commitment problem where the generation, reserve and fuel constraints are adjoined onto the cost function using Lagrange multipliers. All important operating constraints have been incorporated including minimum up and down times, standby operation, ramping limits, time-dependent start-up cost, spinning and supplemental reserve. The method is being applied to a production-grade program suitable for Energy Management Systems applications.
- Research Organization:
- Systems Control, Inc., Palo Alto, CA 94303
- OSTI ID:
- 5989735
- Journal Information:
- IEEE Trans. Power Syst.; (United States), Journal Name: IEEE Trans. Power Syst.; (United States) Vol. PWRS-2:3; ISSN ITPSE
- Country of Publication:
- United States
- Language:
- English
Similar Records
A solving detailed structured duals of unit commitment problems
The generalized unit commitment problem
Related Subjects
200108 -- Fossil-Fueled Power Plants-- Fuels-- (1980-)
29 ENERGY PLANNING, POLICY, AND ECONOMY
290200 -- Energy Planning & Policy-- Economics & Sociology
292000 -- Energy Planning & Policy-- Supply
Demand & Forecasting
296000* -- Energy Planning & Policy-- Electric Power
ALGORITHMS
CAPITALIZED COST
CONTRACTS
COST
ELECTRIC UTILITIES
ENERGY MANAGEMENT SYSTEMS
ENERGY SUPPLIES
ENERGY SYSTEMS
FUEL SUPPLIES
FUNCTIONS
HOURLY VARIATIONS
LAGRANGIAN FUNCTION
LOAD ANALYSIS
MATHEMATICAL LOGIC
POWER GENERATION
PUBLIC UTILITIES
SUPPLY AND DEMAND
TIME DEPENDENCE
VARIATIONS