Sungkyunkwan University

Kwang Su Na

Chung Yuen Won

Mi Na Kim

Hoon Gi Lee

Bong Yeon Choi

Jun Sin Yi

Chang Gyun An

Tae Gyu Kim

Kyoung Min Kang

A method for controlling a fault of a three phase four wire interlinking converter system according to one embodiment of the present disclosure comprises obtaining a first d-q-o coordinate plane based on an internal phase angle of output voltage produced from each phase of an inverter; converting the first d-q-o coordinate plane to a second d-q-o coordinate plane based on the o-axis configured differently from the first d-q-o coordinate plane; obtaining an output voltage vector for determining a fault location by performing d-q transform on the second d-q-o coordinate plane; determining occurrence of a fault and an area related to the fault based on the output voltage vector; and in the occurrence of the fault, allocating a zero voltage vector to the area related to the fault.

Method for controlling fault using switching technique of three phase four wire interlinking converter

Growing community of inventors

Suwon-si, South Korea

Kwang Su Na