Impact of wind turbine control strategies on voltage performance

摘要

This study examines the 2013 Irish electricity networkand its ability to accommodate large levels of wind generationwhile maintaining appropriate voltage levels across thesystem. The network provides a fully functional test system thatis suitable for large scale power flow and dynamic simulations. Inthe next decade, wind generation is expected to constitute largepercentage of the country’s new renewable generation portfoliodue to the rich wind resource available in Ireland. As windpenetration grows, larger levels of conventional generation willbe displaced and there will be an increased need to provide bothvoltage and frequency stability support. Many wind turbines havethe capability to perform certain mitigation tasks such as reactivepower support; in particular, this study will examine the windturbine’s ability to provide terminal voltage control in order toimprove the system’s voltage performance. This will be achievedusing steady-state power flow analysis with historical loadingpatterns while taking into account the inherent variability of thewind resource. It will show that increased application of terminalvoltage control strategies will allow for more robust voltages bothlocally and systemically.