A survey on neutral-point-clamped inverters

Jose Rodriguez, Steffen Bernet, Peter K. Steimer, Ignacio E. Lizama

Research output: Contribution to journalReview articlepeer-review

1632 Citations (Scopus)


Neutral-point-clamped (NPC) inverters are the most widely used topology of multilevel inverters in high-power applications (several megawatts). This paper presents in a very simple way the basic operation and the most used modulation and control techniques developed to date. Special attention is paid to the loss distribution in semiconductors, and an active NPC inverter is presented to overcome this problem. This paper discusses the main fields of application and presents some technological problems such as capacitor balance and losses.

Original languageEnglish
Article number5256191
Pages (from-to)2219-2230
Number of pages12
JournalIEEE Transactions on Industrial Electronics
Issue number7
Publication statusPublished - Jul 2010


  • Neutral-point-clamped (NPC) inverters

ASJC Scopus subject areas

  • Control and Systems Engineering
  • Electrical and Electronic Engineering


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