Improved PD-PWM for minimizing harmonics of multilevel converter using gradient optimization

Gum Tae Son, Yong Ho Chung, Seung Taek Baek, Hee Jin Kim, Tae Sik Nam, Kyeon Hur, Jung Wook Park

Research output: Contribution to journalConference article

7 Citations (Scopus)


This paper proposes the improved phase-disposition PWM (PD-PWM) method, which optimizes the voltage harmonic performance of multilevel converter. The proposed PD-PWM method adjusts the position and magnitude of the carriers to find out the optimal values, which minimize the THD of output voltages. A gradient optimization method is applied as a form of an optimization-enabled transient simulation. A neutral-point clamped converter (NPC) demonstrates that the proposed method improves the THD of output voltages using PSCAD/EMTDC and MATLAB.

Original languageEnglish
Article number6939552
JournalIEEE Power and Energy Society General Meeting
Issue numberOctober
Publication statusPublished - 2014 Oct 29
Event2014 IEEE Power and Energy Society General Meeting - National Harbor, United States
Duration: 2014 Jul 272014 Jul 31


All Science Journal Classification (ASJC) codes

  • Energy Engineering and Power Technology
  • Nuclear Energy and Engineering
  • Renewable Energy, Sustainability and the Environment
  • Electrical and Electronic Engineering

Cite this