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http://dx.doi.org/10.6113/TKPE.2017.22.2.166

Dead time Compensation of Single-phase Grid-connected Inverter Using SOGI  

Seong, Ui-Seok (Dept. of Electrical Engineering, Kyungnam University)
Lee, Jae-Suk (Dept. of Electrical Engineering, Kyungnam University)
Hwang, Seon-Hwan (Dept. of Electrical Engineering, Kyungnam University)
Kim, Jang-Mok (Dept. of Electrical Engineering, Pusan National University)
Publication Information
The Transactions of the Korean Institute of Power Electronics / v.22, no.2, 2017 , pp. 166-174 More about this Journal
Abstract
This study proposes a compensation method for the dead-time effects on a single-phase grid-connected inverter. Dead time should be considered in the pulse-width modulation gating signals to prevent the simultaneous conduction of switching devices, considering that a switching device has a finite switching time. Consequently, the output current of the grid-connected inverter contains odd-numbered harmonics because of the dead time and the nonlinear characteristics of the switching devices. The effects of dead time on output voltage and current are analyzed in this study. A new compensation algorithm based on second-order generalized integrator is also proposed to reduce the dead-time effect. Simulation and experimental results validate the effectiveness of the proposed compensation algorithm.
Keywords
Single-phase grid-connected inverter; Dead time; SOGI; Current ripple reduction;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
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