Publication
Min-Gyo Jeong, Seok-Min Kim, June-Seok Lee, and Kyo-Beum Lee, "Discontinuous PWM Scheme for Switching Losses Reduction in Modular Multilevel Converters," Journal of Power Electronics, vol. 17, no.6, pp. 1490-1499, Nov. 2017.
2017
PEEMS
-
Oct. 4, 2023
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1. Authors: Min-Gyo Jeong, Seok-Min Kim, June-Seok Lee, and Kyo-Beum Lee
2. Title: Discontinuous PWM Scheme for Switching Losses Reduction in Modular Multilevel Converters
3. Journal: Journal of Power Electronics
4. Vol/no/pp: vol. 17, no.6, pp. 1490-1499
5. Date: Nov. 2017
6. Abstract
: The modular multilevel converter (MMC) is generally considered to be a promising topology for medium-voltage and high-voltage applications. However, in order to apply it to high-power applications, a huge number of switching devices is essential. The numerous switching devices lead to considerable switching losses, high cost and a larger heat sink for each of the switching device. In order to reduce the switching losses of a MMC, this paper analyzes the performance of the conventional discontinuous pulse-width modulation (DPWM) method and its efficiency. In addition, it proposes a modified novel DPWM method for advanced switching losses reduction. The novel DPWM scheme includes an additional rotation method for voltage-balancing and power distribution among sub modules (SMs). Simulation and experimental results verify the effectiveness and performance of the proposed modulation method in terms of its switching losses reduction capability.
- Oct. 4, 2023 Yeongsu Bak, June-Seok Lee, and Kyo-Beum Lee, "Low-Voltage Ride-Though Control Strategy for a Grid-Connected Energy Storage System," Applied Science, vol. 8, no.1, Jan. 2018.
- Oct. 4, 2023 June-Hee Lee, June-Seok Lee, and Kyo-Beum Lee, "A Fault Diagnosis Method in Cascaded Hbridge Multilevel Inverter Using Output Current Analysis," Journal of Electrical Engineering & Technology, vol. 12, no.6, pp. 2278-2288, Nov. 2017.