PUBLICATIONS
Paper
[International Conference] Seungjong Yoo, June-Seok Lee, and Kyo-Beum Lee, "A New Discontinuous PWM Method of Three-Level Inverter for Neutral-Point Voltage Ripple Reduction," in Proc. ICPE (ECCE-Asia) Conf., Jun. 2015, pp. 521–526.
- 글쓴이 관리자
- 날짜 2019-06-28 19:51
- 조회 1,500
A new pulse width 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 the inherent problem of neutral-point
voltage unbalancing due to the split dc-link capacitors. This structure can cause the large neutral-point voltage ripple. Furthermore,
output currents of the three-level NPC inverter can be distorted by the neutral-point voltage ripple. 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.
