Journal
INTERNATIONAL JOURNAL OF ELECTRICAL POWER & ENERGY SYSTEMS
Volume 64, Issue -, Pages 986-995Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.ijepes.2014.08.019
Keywords
Wind power; Peak load; Rapid ramp event; Optimal dispatch; Multiple time interval
Categories
Funding
- National High Technology Research and Development Program (863 Program) of China [2011AA05A105]
- China Postdoctoral Science Foundation [2013M540286]
- National Natural Science Foundation of China [51377035]
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High wind power penetration poses a challenge for the dispatch of the power system when rapid ramp events occur. This paper proposes an optimal dispatching strategy against wind power rapid ramp events during peak load periods by coordinating generation units with different time intervals. Special attention is given to the definition of the wind power rapid ramp events considering operation conditions of the system. Then, the online prediction of wind power rapid ramp events and its influence on the spinning reserve procurement of the system is analyzed. Based on the principle of coordination among generation units with different time intervals, the optimal dispatch during peak load periods when wind power rapid ramp events occur is formulated as an optimization problem considering thermal generation units, the energy storage system, interruptible load and load shedding. To improve computational efficiency, the power output calculation of the generation units with different time intervals is decomposed. The results show that the proposed dispatching strategy is feasible for accommodating wind power rapid ramp events during peak load periods. (C) 2014 Elsevier Ltd. All rights reserved.
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