Adequacy Assessment of a Combined Generating System Containing Wind Energy Conversion Systems
Date
1994-01
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Degree Level
Masters
Abstract
Dwindling energy resources and the potential impact on the environment of conventional energy systems have resulted in serious consideration of the utilization of wind energy for satisfying electrical energy demands. It is, therefore, both necessary and important to study the characteristics of wind power and its effects in a combined generating system. Modeling wind energy conversion systems is more complex than conventional unit modeling in that wind energy conversion systems consist of small size units in the KW range and the wind energy is both intermittent and weather dependent. This thesis examines the adequacy of combined generating systems containing conventional units and wind energy conversion systems. The analysis is conducted using Monte Carlo simulation and multi-state analytical approaches. A systematic procedure for wind modeling is presented using time-series analysis. The two methods are used to investigate the effects of some important factors, such as, the number of wind turbine generating units added to the system, the forced outage rate of wind turbine generating units, the wind speed, the penetration level and the load profile on the adequacy of the combined system. The wind is modeled using a time-series analysis which incorporates the randomness and the chronological order of the wind speed. In this thesis, practical multi-state and Monte Carlo simulation techniques for adequacy evaluation of electric power systems containing wind energy conversion systems are developed and applied to a hypothetical test system. The basic multi-state approach is improved using simulated wind speeds from the time-series model. The calculated results from the multi-state approach are compared with those from the simulation results to determine the applicability of the multi-state approach.
The developed models and methods are relatively easy to use and can be applied to practical combined generating systems containing wind energy conversion systems .
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Degree
Master of Science (M.Sc.)
Department
Electrical Engineering