Automatic Re-synchronization Controller Analysis within a Multi-Domain Gas Turbine and Power System Model

International audienceThis paper presents the design of a centralized controller architecture for automatic re-synchronization of islanded networks that uses remote synchrophasor measurements from Phasor Measurement Units (PMUs). The controller behaviour is tested in a multi-domain power system model, where a thermomechanical model of a gas turbine is used within the controlled generator to model a Distributed Energy Resource (DER), in substitution of a traditional turbine-governor representation. The controller architecture uses PMU data from substations at transmission and distribution level. Considering different power dispatch levels of the distribution generator model in the power system, the performance of frequency control module inside the overall re-synchronization controller has been analyzed and compared for both electrical-domain and multi-domain models. This paper shows that multi-domain models provide more detailed representation of the turbine behaviour and a better adjustment of the control signal behavior during the resynchronization process