2Short‐Term Frequency Response of Power Systems with High Nonsynchronous Penetration Levels
Lisa Ruttledge and Damian Flynn
School of Electrical and Electronic Engineering, University College Dublin, Dublin, Ireland
In addition to the generation and transmission of electricity, the reliable and secure operation of power systems also relies on various ancillary support services supplied by power plants and loads. The portfolio of required support services has historically been well understood. However, as conventional power plant are displaced by modern variable renewable generation, such as wind and solar, so too are those traditional ancillary support services. As a result, new support services are required and changes in operational behavior are necessary. The impact of increased variable generation levels on one such support service category, short‐term system frequency response, is considered here. The evolution of power system behavior with respect to this service is assessed, with potential solutions to the associated challenges explored, and pertinent future questions in this area highlighted.
INTRODUCTION
Electricity is one of the most widely used commodities in the world today, with its share of global final energy consumption doubling over the past four decades[1]. Electric power systems form the backbone of the production, delivery, management, and use of electricity. Therefore, efficient and reliable system operation is of paramount importance to ensure its effective ...