09.2021.164.172

Solution for Estimating the LC Filter Current Components in Inverters Using Neural Network

Author(s):

Ngo Minh Duc, Bui Thi Hai Linh, Nguyen Hong Quang*

Affiliation(s):

Thai Nguyen University of Technology, No. 666, 3/2 Street, Thai Nguyen, Viet Nam

Corresponding Author Email: quang.nguyenhong@tnut.edu.vn

This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

The LC filter is an essential component in inverters. It helps that the output voltage retains the desired fundamental component and eliminates the converter’s high-order harmonic component. It isn’t easy to accurately measure the current through the inductor and capacitor because it includes different harmonic components. This paper proposes a method to estimate the current through the capacitor of an LC filter by using a neural network from which it can be accurately determined to control. A model is built in Matlab/Simulink software to verify the correctness of the method.