A Modified ZOH Model for Representing the Small-Signal PWM Behavior in Digital DC-AC Converter Systems. - Florian Hans; Martin Oeltze; Walter Schumacher (IECON, 2019)

Passivation of Current-Controlled Grid-Connected VSCs Using Passivity Indices. - Florian Hans; Walter Schumacher; Shih-Feng Chou; Xiongfei Wang (IEEE Trans. Ind. Electron., 2019)