A fuzzy set approach to the flow computation in optimal power scheduling

Conference · Wed Jan 01 04:00:00 EST 1992 · Proceedings of the American Power Conference; (United States)

OSTI ID:7116892

Wang, C; Shahidehpour, S M ^[1]; Adapa, R ^[2]

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1. Illinois Inst. of Tech., Chicago, IL (United States). Dept. of Electrical and Computer Engineering
2. Electric Power Research Inst., Palo Alto, CA (United States)

The objective of multi-area power scheduling is to minimize the system operation cost while satisfying the system constraints, e.g., tie line capacity limits. This paper reports that there are two phases considered for the solution of this problem. One is the unit commitment which determines the operation states of generating units. The other is the economic dispatch which coordinates the generation among committed units. These two phases interact with each other as the area unit commitment may have to be rescheduled according to the economic dispatch results to m maintain a certain amount of area power generation and satisfy the operating constraints. In order to obtain an initial area unit commitment, previous algorithms assumed there would be no interchange transactions among areas(1-3). The principle idea for solving the multi-area generation scheduling problem was based on scheduling the unit commitment in each area and dispatching the total load economically among committed units such that the economical areas would generate excessive power and export the extra power to more expensive areas. However, tie flows reflect the power generation schedule in each area as the area unit commitment is adjusted to satisfy the security constraints. If the initial unit commitment in each area does not include any information regarding the interchange transactions, it will be computationally expensive to reach the optimal solution in large scale systems.

• Sponsoring Organization: EPRI; Electric Power Research Inst., Palo Alto, CA (United States)
• OSTI ID: 7116892
• Report Number(s): CONF-920432--; CNN: RP8010-24
• Conference Information: Journal Name: Proceedings of the American Power Conference; (United States) Journal Volume: 54:1
• Country of Publication: United States
• Language: English

Related Subjects

24 POWER TRANSMISSION AND DISTRIBUTION
240100* -- Power Systems-- (1990-)
240700 -- Power Transmission & Distribution-- Economic
Industrial & Business Aspects-- (1990-)
29 ENERGY PLANNING, POLICY, AND ECONOMY
296000 -- Energy Planning & Policy-- Electric Power
99 GENERAL AND MISCELLANEOUS
990200 -- Mathematics & Computers
COMPUTER CALCULATIONS
COMPUTERIZED SIMULATION
ECONOMICS
FUZZY LOGIC
LOAD MANAGEMENT
MANAGEMENT
MATHEMATICAL LOGIC
OPTIMIZATION
PERFORMANCE TESTING
PLANNING
POWER GENERATION
POWER SYSTEMS
POWER TRANSMISSION
SIMULATION
TESTING