Closed-Loop Identification of Power System Based on Ambient Data

الملخص EN

Small fluctuations caused by random changes of loads exist continuously in power grids, which are called ambient signals.

Using time-synchronized phasor measurements, the closed-loop identification of power system based on ambient data is discussed, which can reflect accurate operating conditions currently and provide critical information for system analyzing and controller designing.

The closed-loop identification of a power system with multiple disturbances is theoretically studied, including the closed-loop identifiability, the consistency properties, and the convergence properties.

The requirements for realizing the closed-loop identification are summarized, and the theoretical research results are validated by simulation examples.