Mitigation of Wideband Oscillation

This chapter first outlines countermeasures to the wideband oscillations (WBOs) in converter-dominated power systems at the planning and design, operational scheduling, damping control, and emergency protection stages. The design principles and implementation methods of new-type power system stabilizers (NPSS) for converter-based devices to mitigate the WBOs are presented, including the principles of their offline and online tuning. Finally, the chapter discusses the application of different types of NPSSs in existing converter-based devices as well as the development of shunt converters specially designed to suppress the WBOs.