Residue-Based Evaluation of the Use of Wind Power Plants With Full Converter Wind Turbines for Power Oscillation Damping Control

Grid-Synchronization Stability Analysis for Multi DFIGs Connected in Parallel to Weak AC Grids

“…Given a transfer function F ij (s) from the input u i and the output y i , it can always be expressed as a sum of partial fractions in the following form (23) in which, R k is the residue corresponding to eigenvalue λ k , and it measures the sensitivity of λ k to a scalar feedback [20]. The residue is a complex number, which can be described in the complex plane as depicted in Figure 8.…”

“…Therefore, the magnitudes of residue, which indicate how much an eigenvalue will be affected for a particular input-output signal path, are useful for the signal selections in feedback control design. As a typical application, residues have been utilized in power oscillation damping controls [21][22][23]. Figure 7.…”

The Impact of Increased Penetration of Converter Control-Based Generators on Power System Modes of Oscillation

“…Some other studies have addressed the modal characteristics of the CCBGs and their potential effects on the modal behavior of the power system, using a single machine infinite bus approach [7] or a reduced power system test bed case [6], [8] and [9]. It has been found also that, complementary control loops in CCBGs may be effective in providing additional damping to traditional electromechanical modes [9][10]. Therefore, some supplementary control loop solutions have been presented for emulating inertia response [11] and PSS [12] for CCBGs.…”

The impact of increased penetration of converter control-based generators on power system modes of oscillation

“…Some other studies have addressed the modal characteristics of the CCBGs and their potential effects on the modal behavior of the power system, using a single machine infinite bus approach [7] or a reduced power system test bed case [6], [8] and [9]. It has been found also that, complementary control loops in CCBGs may be effective in providing additional damping to traditional electromechanical modes [9][10]. Therefore, some supplementary control loop solutions have been presented for emulating inertia response [11] and PSS [12] for CCBGs.…”