Transient Stability Analysis for Offshore Wind Power Plant Integration Planning Studies—Part II: Long-Term Faults

This paper addresses the transient stability (also called large-signal stability) analysis of power systems for offshore wind power plant integration planning studies. In particular, this study develops a comprehensive practical methodology to assess the transient stability of power systems, including rotor angle stability, voltage stability, and frequency response for large-scale power systems. This methodology considers variability of the offshore wind power plants as well as the type of any faulted system's components present and is applicable to the study of both short-term and long-term faults. Part I of this research discussed the short-term faults, whereas Part II, the present paper, discusses long-term faults. This research considers the integration of offshore wind power plants into existing power systems and demonstrates the utility of this methodology through the examination of the specific case of integrating 1000 MW of offshore wind power into the FirstEnergy/PJM service territory using a realistic model of 63 k-bus test system that represents the U.S. Eastern Interconnection.