Definition of frequency under high dynamic conditions

Definition of local bus frequencies during transient simulations. This definition of bus frequency will consider the frequency as it is distributed across the network, as opposed to considering it as a global system variable (i.e., the concept of centre of inertia), which is the current status quo in power systems analysis. The definition of the frequency in this paradigm is thus closer to that of real-world devices, such as PMUs, and is based on sampling phase quantities, filtering the noise and defining the time-varying frequency of the fundamental component of the signal. These methods will be based on phasor analysis, and the accuracy of results can be compared to those found using EMT analysis which includes all fast electro-magnetic dynamics, the three-phase, possibly unbalanced models of every dynamic element of the grid, and detailed PMU models.