PROJECT TITLE :

A Fixed-Length Transfer Delay-based Adaptive Frequency Locked Loop for Single-Phase Systems

ABSTRACT:

We offer a single phase adaptive frequency-locked loop (FLL) that uses fixed-length transfer delay units. It is possible to create a linear regression model of the grid voltage by evaluating its transmission delay signals. An adaptive FLL is presented using transfer delay (TD-AFLL). The suggested TD-AFLL can reject both phase offset errors and double-frequency oscillatory errors, according to a mathematical proof. So even if there is a shift in the frequency, grid voltage parameters may be precisely predicted. As a result of the transfer delay structure, TD-AFLL achieves fast dynamics. The proposed strategy has been proven to be effective through experiments.