Synchronizing Torque Impacts on Rotor Speed in Power Systems

An investigation into spatial and temporal aspects of transient stability in power systems with increasing renewable generation

“…This is further analysed in more general terms in [19]. Other parameters found in literature to impact the angular stability boundary include level of system inertia and synchronising torque [20].…”

Modelling of inter‐area angular dynamics and proactive defence strategy in deregulated power grids with large‐scale integration of renewable energy sources

“…This inertial response elicits speed deviations in synchronous generators influenced by their relative location to the CCS as well as inertia [9]. The synchronisation mechanism strives to attain synchronous speed; consequently, angular oscillations of generators and swinging of coherent groups occurs [10]. The primary regulation reserve characteristics of synchronous generators highly influence these angular dynamics while trying to attain the synchronous speed, lesser or higher than the nominal speed following the nature of CCS out power forecast error [8].…”

Comparison of Coupled Nonlinear Oscillator Models for the Transient Response of Power Generating Stations Connected to Low Inertia Systems

“…Recent publications exist exploring the effect of increasing grid RES levels on its rotational inertia and dynamics following a disturbance. This has usually been achieved by finding relevant physical characteristics using simulations on various classical multimachine model testbeds, e.g., simulating the dynamic response [3]- [6], analysing the eigenvalue sensitivity [4], investigating the effects on the rate of change of rotor speed [7], and investigating inter-area power-flow oscillations (using a five-machine reduced model to represent The Western Electric Coordinating council transmission grid) [5]. Another method is Koopman mode decomposition [8], [9] which is relevant to the current paper as the nonlinear dynamic response of the system is represented as a sum of eigenfunctions in both cases, although the methods for obtaining them differ significantly.…”

“…Analysis of these systems is usually performed via a numerical solution of a many body system [3]- [7]. To obtain analytic results, however, the many body system must be reduced to a two body one, representing two coupled nonlinear phase oscillators.…”