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Delay compensation in the wide area control of SVCs for first swing stabilisation and damping
conference contributionposted on 12.12.2017, 00:00 by Edward PalmerEdward Palmer, G Ledwich, A Vahidnia
A delay compensation algorithm is presented for improving the robustness to delays of a wide area control strategy directed at using remote measurements to perform load modulation by means of an SVC. The compensation algorithm uses backward and forward projection of PMU based angle and velocity measurements to compensate for delays. Through the simulation of a simple network it is shown that a doubling of the delay robustness is possible and it is expected that the algorithm will adequately compensate for delays greater than what would be expected. Non-linear delay compensation is recommended however based on a small degradation noted with first swing performance.