%0 Journal Article
%T A digital phase shift method for phase compensation of electronic transformer
%A Deng-ping Tang
%A Fan Li
%A Han-miao Cheng
%A Shui-bin Xia
%A Wei Wei
%J Transactions of the Institute of Measurement and Control
%@ 1477-0369
%D 2018
%R 10.1177/0142331217729747
%X When sampling analog signal, the electronic transformer generally produces a fixed phase error that will compromise the measurement accuracy and require a phase shift method for correction. In this paper, we propose a digital phase shift method based on least squares fitting algorithm and derive the recursion formula of digital phase shift. The simulation has also been done to analysis its performance. The result shows that the method has high phase shift resolution and precision. By applying the method to an electronic transformer based on Rogowski coil, we have experimentally verified the feasibility and validity of the method
%K Electronic transformer
%K phase error
%K phase compensation
%K digital phase shift
%K least squares fitting
%U https://journals.sagepub.com/doi/full/10.1177/0142331217729747