Wind power generation dynamic impacts on electric utility systems. Final report

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Abstract
A primary application of wind power generation on utility systems is expected to be large clusters of megawatt-scale wind turbine (WT) units, connected to the utility transmission network and operated as part of the overall utility generation mix. Wind fluctuations will result in minute-to-minute WT output variations. Large penetrations of wind turbines may cause dynamic impacts such as severe system swings, excessive frequency excursions, or system instability. These potential dynamic impacts, considering the integrated wind power plants, utility conventional generation, and transmission system, may limit the potential WT penetration and/or cause significant system operating restrictions. An initial assessment of potential wind power generation dynamic impacts on utility systems from a global utility perspective was made. Dynamic study of minute-to-minute ramping, frequency excursion, and short-term transient stability was performed using the Hawaiian Electric Company system as an illustrative example.

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