Multilevel selective harmonic elimination PWM technique in series-connected voltage inverters

Li Li, Dariusz Czarkowski, Yaguang Liu, Pragasen Pillay

Research output: Contribution to journalArticlepeer-review


Selective harmonic elimination pulsewidth modulation (SHEPWM) method is systematically applied for the first time to multilevel series-connected voltage-source PWM inverters. The method is implemented based on optimization techniques. The optimization starting point is obtained using a phase-shift harmonic suppression approach. Another less computationally demanding harmonic suppression technique, called a mirror surplus harmonic method, is proposed for double-cell (five-level) inverters. Theoretical results of both methods are verified by experiments and simulations for a double-cell inverter. Simulation results for a five-cell (11-level) inverter are also presented for the multilevel SHEPWM method.

Original languageEnglish (US)
Pages (from-to)160-170
Number of pages11
JournalIEEE Transactions on Industry Applications
Issue number1
StatePublished - Jan 2000

ASJC Scopus subject areas

  • Control and Systems Engineering
  • Industrial and Manufacturing Engineering
  • Electrical and Electronic Engineering


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