A Generic Model for Inertia-Based Fast Frequency Response of Wind Turbines and Other Positive-Sequence Dynamic Models for Renewable Energy Systems

As the global push for decarbonization of the world electric power generation systems continues, the deployment of ever larger wind power plants, as well as photovoltaics, and battery energy storage systems abound worldwide. Roughly a decade ago the Western Electricity Coordinating Council's (WECC) Renewable Energy Modeling Task Force successfully achieved the goal of developing a set of publicly available, non-proprietary and generalized dynamic models for computer simulation modeling of such renewable energy systems (RES) in bulk power system planning studies. These models have, and continue to be used by many in both North America and elsewhere. In the past several years, the WECC modeling and validation subcommittee (MVS) has continued these efforts to develop, and with the help of many commercial software vendors, release a set of new modules that help to augment these so-called generic RES dynamic models and increase the range of their applicability. These include features such as a model for simulating inertia-based fast frequency response of wind turbine generators, emulating the so-called weak grid option controls, and updated voltage-source type converter models. This article presents an account of these latest developments.