Finite Control-Set Model Predictive Control (FCS-MPC) of Nested Neutral Point-Clamped (NNPC) Converter

Mehdi Narimani, Bin Wu, Venkata Yaramasu, Cheng Zhongyuan, Navid Reza Zargari

Research output: Contribution to journalArticlepeer-review

99 Scopus citations

Abstract

This paper proposes a model predictive control (MPC) strategy for a nested neutral point-clamped (NNPC) converter to control output currents and voltages of flying capacitors. The NNPC converter is a four-level converter topology for medium-voltage applications with interesting properties such as operating over a wide range of voltages (2.4-7.2 KV) without the need for connecting power semiconductor in series, high quality output voltage, less number of components compared to other classical four-level topologies. A discrete-time model of the converter is presented and all the control objectives are formulated in terms of the switching states. During each sampling interval, the predicted variables are assessed by the cost function and the best switching state which gives minimum value for the cost function is selected and applied to the converter gating terminals. The performances of the NNPC converter and predictive control scheme are verified through MATLAB/Simulink simulations and their feasibility is evaluated experimentally.

Original languageEnglish (US)
Article number7018914
Pages (from-to)7262-7269
Number of pages8
JournalIEEE Transactions on Power Electronics
Volume30
Issue number12
DOIs
StatePublished - Dec 1 2015
Externally publishedYes

Keywords

  • DC-AC power conversion
  • Multilevel converter
  • finite control-set model predictive control (FCS-MPC)

ASJC Scopus subject areas

  • Electrical and Electronic Engineering

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