Modeling and Verification of Advanced Under-Frequency Load Shedding Schemes

Power system blackouts have been observed increasingly frequent and severe. As an emergency control action to rescue the system from complete blackout, under-frequency load shedding (UFLS) technique can disconnect a part of the load when a disturbance occurs and an excessively low frequency is detected. Traditional UFLS scheme is widely adopted...

Voltage support strategies in a rural low voltage network with high photovoltaic penetration

The rapidly increasing penetration of rooftop PV systems in rural LV distribution networks calls for the attention of DNOs in order to secure end-user voltage range. In times of high photovoltaic generation and low load consumption, voltage at PCCs may exceed the specified upper limit and make PV inverters trip. This phenomenon hinders further...