Measurement and Detection of Sub-synchronous Oscillations in Power Electronics Dominated Power Systems

As power converters gain a pivotal role in driving the energy transition of power networks, new electrical phenomena are emerging in the grid. Amongst them, a new type of sub-synchronous oscillation has been identified as originating from the interaction of power converters connected to the grid. This paper discusses the detection and measurement of sub-synchronous oscillations along with the instrumentation requirements.