Publication
Seok-Min Kim, June-Seok Lee, and Kyo-Beum Lee, "A Modified Level-Shifted PWM Strategy for Fault Tolerant Cascaded Multilevel Inverters with Improved Power Distribution," IEEE Transactions on Industrial Electronics, vol. 63, no. 11, pp. 7264-7274, Nov. 2016.
2016
PEEMS
-
Oct. 4, 2023
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1. Authors: Seok-Min Kim, June-Seok Lee, and Kyo-Beum Lee
2. Title: A Modified Level-Shifted PWM Strategy for Fault Tolerant Cascaded Multilevel Inverters with Improved Power Distribution
3. Journal: IEEE Transactions on Industrial Electronics
4. Vol/no/pp: vol. 63, no. 11, pp. 7264-7274
5. Date: Nov. 2016
6. Abstract
: To increase the fault tolerance for cascaded H-bridge multilevel inverters (CHMIs) based on level-shifted pulse width modulation (LS-PWM), a modified LS-PWM method is proposed for the inverters operating under faulty conditions. To cover both open- and short-device fault cases, two types of switching scheme are included in this PWM method. With this PWM method, the neutral shift can be applied as fault-tolerant control for CHMIs based on LS-PWM. Finally, three-phase-balanced line-to-line voltages and currents with minimum harmonic distortion are produced for the inverter with disabled power cells. In addition, this LS-PWM method has the capability to improve power distribution among the H-bridge power cells under the faulty conditions. Simulation and experimental results show that the proposed PWM method performs satisfactorily to achieve fault tolerance.
- Oct. 4, 2023 Yeongsu Bak, June-Seok Lee, and Kyo-Beum Lee, “Balanced Current Control Strategy for Current Source Rectifier Stage of Indirect Matrix Converter under Unbalanced Grid Voltage Conditions,” Energies, vol. 10, no. 1, Jan. 2017.
- Oct. 4, 2023 Ui-Min Choi, June-Seok Lee, Frede Blaabjerg, and Kyo-Beum Lee, "Open-Circuit Fault Diagnosis and Fault-Tolerant Control for a Grid-Connected NPC Inverter," IEEE Transactions on Power Electronics, vol. 31, no. 10, pp. 7234-7247, Oct. 2016.