Enhancing the Efficiency of Locating the Oscillation Source

The article describes the evaluation of the Complex Dissipating Energy Flow (CDEF) method's efficiency in locating the source of oscillation for 250+ simulated cases in 240-bus WECC system and 300+ actual oscillatory events in ISO New England power system. The paper proposes the CDEF implementation in the frequency domain and proposes a formalized Dissipating Energy pattern recognition (DR-PR) process significantly increasing the source locating capability even with limited system observability by PMU. The paper also discusses the efficiency of the CDEF in phasor domain for identifying the source of forced oscillation caused by Invertor Based Resource and using the electromagnetic type modeling.