Solution method for unit commitment limitations and utility constraints

Journal Article · Mon Dec 31 23:00:00 EST 1990 · IEEE Computer Applications and Power; (United States)

DOI:https://doi.org/10.1109/67.65029· OSTI ID:5202334

Hussain, K ^[1]

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1. Saudi Consolidated Electric Co., Riyadh (SA)

The Unit Commitment (UC) computer program has been used at the Riyadh Energy Control Centre since 1982. This is a thermal unit commitment program, and allows data to be defined for: Minimum and maximum spinning reserve, daily load forecast (24 values), Initial state of plant, Operating, fixed, startup/shutdown costs, and Unit failure rate, unit minimum and maximum capacity, and maximum allowable rate of change of unit output power. The program determines unit loading for each interval of the period so that the period operating costs are minimized. A dynamic programming algorithm is used as a solution technique in the unit commitment. First, it determines the optimum scheduling of units, i.e., which units are online for each interval. Allowance is made for system spinning reserve requirements, unit minimum and maximum loadings, and cost of starting up units. Second, the algorithm performs more detailed allocation using the schedule from the first stage. Units can be allowed to change their loading. The results of the UC program consist of several useful pages of computer printout.

• OSTI ID: 5202334
• Journal Information: IEEE Computer Applications and Power; (United States), Journal Name: IEEE Computer Applications and Power; (United States) Vol. 4:1; ISSN ICAPE; ISSN 0895-0156
• Country of Publication: United States
• Language: English

Related Subjects

29 ENERGY PLANNING, POLICY, AND ECONOMY
296000* -- Energy Planning & Policy-- Electric Power
99 GENERAL AND MISCELLANEOUS
990200 -- Mathematics & Computers
ALGORITHMS
ASIA
COMPUTER CODES
COST
DEVELOPING COUNTRIES
ELECTRIC UTILITIES
MATHEMATICAL LOGIC
MIDDLE EAST
MODIFICATIONS
OPTIMIZATION
PUBLIC UTILITIES
SAUDI ARABIA