Improvement of Post-Fault Performance of a Cascaded H-bridge Multilevel Inverter

Ouni, S.; Zolghadri, M.R.; Khodabandeh, M.; Shahbazi, M.; Rodriguez, J.; Oraee, H.; Lezana, P.; Schmeisser, A.U.

Abstract

This paper is focused on improving the post-fault performance of Cascaded H-bridge Multilevel Inverters by decreasing the common mode voltage. First, an algorithm is proposed to determine the optimal post-fault state among all possible states which have the same maximum available voltage. Furthermore, a modified technique is proposed to calculate the references of inverter phase voltages under faulty conditions. This technique leads to a decrease in the common mode voltage when the required output voltage is less than its maximum value. These solutions are mutually employed in the post-fault control system. Simulation and experimental results confirm the effectiveness of the proposed solutions in comparison with the existing methods in different cases.

Citation

Ouni, S., Zolghadri, M., Khodabandeh, M., Shahbazi, M., Rodriguez, J., Oraee, H., …Schmeisser, A. (2017). Improvement of Post-Fault Performance of a Cascaded H-bridge Multilevel Inverter. IEEE Transactions on Industrial Electronics, 64(4), 2779-2788. https://doi.org/10.1109/tie.2016.2632058

• Journal Article Type: Article
• Acceptance Date: Oct 17, 2016
• Online Publication Date: Nov 22, 2016
• Publication Date: Apr 1, 2017
• Deposit Date: Nov 7, 2016
• Publicly Available Date: Nov 8, 2016
• Journal: IEEE Transactions on Industrial Electronics
• Print ISSN: 0278-0046
• Publisher: Institute of Electrical and Electronics Engineers
• Peer Reviewed: Peer Reviewed
• Volume: 64
• Issue: 4
• Pages: 2779-2788
• DOI: https://doi.org/10.1109/tie.2016.2632058
• Public URL: https://durham-repository.worktribe.com/output/1370962