A modified unit commitment and generation control for utilities with large wind generation penetrations
A modified unit commitment is proposed in this paper that would be updated on three different cycles (daily, quarter-hourly and every minute). The 24 hour updated unit commitment would include the effects of load and slow trend wind power change that could be predicted 24 hours ahead. The quarterhourly updated unit commitment would handle the fast trend and cyclic change in wind power that could be predicted one hour ahead and would commit peaking, regulation, and quick pickup and possibly economic units to handle these wind power changes. The minute updated unit commitment would connect or disconnect quick pickup units or wind turbines based on a 15 minute ahead prediction of cyclic wind power variations with periods greater than 10 minutes. The modified generation control would utilize: normal automatic general control; coordinated blade pitch control of all wind turbines in the array to clip and smooth wind power variations; and supplementary control of peaking, regulating and quick pickup units committed by the quarterhourly and minute updated unit commitments. This paper also discusses the unit commitment problem of supplying sufficient generation to meet load and the spinning reserve, operating reserve, unloadable generation reserve, and load following levels required to assure operating reliability. The generation control problem of controlling both conventional and wind generation to track load is also discussed. The inadequacy of the three present alternative solutions to the unit commitment and generation control problem are also discussed.
- Research Organization:
- Michigan State University, East Lansing, Michigan
- OSTI ID:
- 6493426
- Journal Information:
- IEEE Trans. Power Appar. Syst.; (United States), Vol. PAS-104:7
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
POLICY AND ECONOMY
WIND POWER
FORECASTING
VARIATIONS
WIND POWER PLANTS
COMPUTERIZED CONTROL SYSTEMS
LOAD MANAGEMENT
ELECTRIC UTILITIES
LOAD ANALYSIS
PEAK LOAD
POWER GENERATION
WIND TURBINES
CONTROL SYSTEMS
ENERGY SOURCES
MACHINERY
MANAGEMENT
POWER
POWER PLANTS
PUBLIC UTILITIES
RENEWABLE ENERGY SOURCES
TURBINES
TURBOMACHINERY
299003* - Energy Planning & Policy- Unconventional Sources & Power Generation- Other- (-1989)