Publication
June-Seok Lee, Seungjong Yoo, and Kyo-Beum Lee, "Novel Discontinuous PWM Method of a Three-Level Inverter for Neutral-Point Voltage Ripple Reduction," IEEE Transactions on Industrial Electronics, vol. 63, no. 6, pp. 3344-3354, June 2016.
2016
PEEMS
-
Oct. 4, 2023
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1. Authors: June-Seok Lee, Seungjong Yoo, and Kyo-Beum Lee
2. Title: Novel Discontinuous PWM Method of a Three-Level Inverter for Neutral-Point Voltage Ripple Reduction
3. Journal: IEEE Transactions on Industrial Electronics
4. Vol/no/pp: vol. 63, no. 6, pp. 3344-3354
5. Date: June 2016
6. Abstract
: A new pulsewidth modulation (PWM) strategy which is an alternative approach of the discontinuous PWM (DPWM) for a three-level neutral-point-clamped (NPC) inverter is proposed in this paper. A three-level NPC inverter is completely mature and very well-established topology in high-power applications. However, the three-level NPC inverter has an inheritance problem of the neutral-point voltage unbalancing due to the split dc-link capacitors. This structure can cause large neutral-point voltage ripple. Furthermore, output currents of the three-level NPC inverter are distorted by the neutral-point voltage ripple. Therefore, the neutral-point voltage must be controlled. In this paper, a new DPWM method using two different offsets for the neutral-point ripple reduction is proposed and the effectiveness of the proposed DPWM method is verified by using the simulation and the experimental results.
- Oct. 4, 2023 June-Seok Lee, Tae-Min Yoon, and Kyo-Beum Lee, "Bearing fault detection of IPMSMs using zoom FFT," Journal of Electrical Engineering & Technology, vol.11, no. 5, pp. 1235-1241, Sept. 2016.
- Oct. 4, 2023 June-Seok Lee and Kyo-Beum Lee, "Performance Analysis of Carrier-Based Discontinuous PWM Method for Vienna Rectifiers with Neutral-Point Voltage Balance," IEEE Transactions on Power Electronics, vol. 31, no. 6, pp. 4075-4084, June 2016.