Fig.1 Configuration of the Multi-input PSS

Configuration of the Multi-input PSS

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The Multi-input PSS (MPSS) is developed to improve damping of low frequency power swing in long distance power system and to emphasize robustness for changing power system configuration and/or operating conditions. In the MPSS, a deviation of reactive power DeltaQ, changing rates of terminal voltage dEa and active power output dP are added to the DeltaP+DeltaOmega PSS. It is verified by computer simulation that the MPSS has good robustness, because it successfully stabilizes all testing cases without changing any MPSS parameters.

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