TY - GEN
T1 - Analytical Design of LC Filter Inductance for Two-Level Inverters Based on Maximum Ripple Current
AU - Khoshkbar-Sadigh, Arash
AU - Dargahi, Vahid
AU - Lakhera, Ketan
AU - Corzine, Keith
N1 - Publisher Copyright:
© 2019 IEEE.
PY - 2019/10
Y1 - 2019/10
N2 - Single-phase inverters play a crucial role in transferring the power from renewable energy sources such as wind, solar, or even a hydrogen-based fuel cell to the load and/or the electric-power grid. In order to attenuate the high-frequency switching components of the inverter's generated voltage and to minimize the distortion of the injected current at the grid/load side, the LC filter is usually employed. This paper proposes a simple closed-form formula to analytically calculate the required inductance of an LC filter in a single-phase full-bridge inverter controlled with unipolar switching pattern. The derived equations demonstrate that the LC filter inductance value depends on modulation index. Moreover, it proves that the angle at which the maximum peak-to-peak ripple current occurs is not a fixed value, and it varies based on modulation index. Furthermore, the simulation results of a 6.6 kW single-phase inverter are provided for two cases of modulation index to confirm derived closed-form equations.
AB - Single-phase inverters play a crucial role in transferring the power from renewable energy sources such as wind, solar, or even a hydrogen-based fuel cell to the load and/or the electric-power grid. In order to attenuate the high-frequency switching components of the inverter's generated voltage and to minimize the distortion of the injected current at the grid/load side, the LC filter is usually employed. This paper proposes a simple closed-form formula to analytically calculate the required inductance of an LC filter in a single-phase full-bridge inverter controlled with unipolar switching pattern. The derived equations demonstrate that the LC filter inductance value depends on modulation index. Moreover, it proves that the angle at which the maximum peak-to-peak ripple current occurs is not a fixed value, and it varies based on modulation index. Furthermore, the simulation results of a 6.6 kW single-phase inverter are provided for two cases of modulation index to confirm derived closed-form equations.
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U2 - 10.1109/IECON.2019.8926919
DO - 10.1109/IECON.2019.8926919
M3 - Conference contribution
AN - SCOPUS:85084146549
T3 - IECON Proceedings (Industrial Electronics Conference)
SP - 1621
EP - 1626
BT - Proceedings
PB - IEEE Computer Society
T2 - 45th Annual Conference of the IEEE Industrial Electronics Society, IECON 2019
Y2 - 14 October 2019 through 17 October 2019
ER -
