Publication
Hyun-Woo Sim, June-Seok Lee, and Kyo-Beum Lee, "Detecting Open-Switch Faults: Using Asymmetric Zero-Voltage Switching States," IEEE Industry Applications Magazine, vol. 22, no. 2, pp. 27-37, March/April 2016.
2016
PEEMS
-
Oct. 4, 2023
views
1. Authors: Hyun-Woo Sim, June-Seok Lee, and Kyo-Beum Lee
2. Title: Detecting Open-Switch Faults: Using Asymmetric Zero-Voltage Switching States
3. Journal: IEEE Industry Applications Magazine
4. Vol/no/pp: vol. 22, no. 2, pp. 27-37
5. Date: Mar./Apr. 2016
6. Abstract
: This article presents a detection method for an open-switch fault in cascaded H-bridge multilevel inverters (CHMIs). Recently, CHMIs were widely used in high-power systems. Therefore, the reliability of this topology has become an important factor. To improve the reliability, methods for detecting openswitch faults are required. The proposed method is based on the current path analysis according to zero-voltage switching states. The location of both faulty cells and switches can be detected from the current waveform and zero-voltage switching states. This method is applicable when using the level-shifted pulsewidth modulation (LSPWM), which is commonly used for a modulation method in CHMIs. The performance of the proposed detection method is verified by simulation and experimental results.
- Oct. 4, 2023 June-Seok Lee and Kyo-Beum Lee, "Open-Circuit Fault Tolerant Control for Outer Switches of Three-Level Rectifiers in Wind Turbine Systems," IEEE Transactions on Power Electronics, vol. 31, no. 5, pp. 3806-3815, May 2016.
- Oct. 4, 2023 June-Seok Lee and Kyo-Beum Lee, "Time-Offset Injection Method for Neutral-Point AC Ripple Voltage Reduction in a Three-Level Inverter," IEEE Transactions on Power Electronics, vol. 31, no. 3, pp. 1931-1941, March 2016.