Thyristor-controlled series capacitor (TCSC) characteristic curves of fundamental frequency impedance change with line current considering thyristor conduction characteristic, which results in experimental deviation w...
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Thyristor-controlled series capacitor (TCSC) characteristic curves of fundamental frequency impedance change with line current considering thyristor conduction characteristic, which results in experimental deviation when using the open-loop impedance control. To end this, this study derives the TCSC fundamental frequency impedance mathematic model to reveal the theoretical mechanism that fundamental frequency impedance changes with line currents. This study proposes two new look-up table approaches to mitigate deviation of the least square look-up table approach using the three-point quadratic interpolation and linear interpolation algorithms. The proposed methods have been validated via TCSC physical simulation experiments.
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