Analysis on tracking performance of d-q transformation based method

Envelope tracking is a necessary part of flicker meter, flicker sources detection, and flicker compensation. In this paper three proposed method for tracking of all existing tones in voltage envelope is proposed. These methods are based on the d-q transformation to extract flicker tones which can be used to determine the sources of this event. Three proposed methods include a method based on the square method and the d-q transformation, a method based on the half wave rectifier and the d-q transformation, and finally, a method based on phase shifting method and the d-q transformation are presented in this paper. The performances of the proposed method for flicker tones tracking are examined by simulation in MATLAB. Simulation results show that the proposed method can detect flicker tones correctly.