4.4 Article

LCCT-derived three-level three-phase inverters

Journal

IET POWER ELECTRONICS
Volume 10, Issue 9, Pages 996-1002

Publisher

INST ENGINEERING TECHNOLOGY-IET
DOI: 10.1049/iet-pel.2016.0023

Keywords

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Funding

  1. Estonian Research Council [PUT (PUT633)]
  2. Latvian National Research Programme 'LATENERGI', Latvian Council of Science [673/2014]
  3. Ukrainian Ministry of Education and Science [0116U004695, 0116U006960]

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Solutions for a family of the novel three-level neutral-point-clamped (NPC) inductor-capacitor-capacitor-transformer (LCCT)-derived three-phase inverters are described and compared. Component design guidelines and steady state analysis, current and voltage waveforms are given. The authors' simulation results confirm the theoretical predictions. It was found that an asymmetrical three-level NPC LCCT-derived inverter with a single diode in the impedance source network is the most promising solution. Experimental results for an asymmetrical three-level NPC LCCT-derived inverter with a single input voltage source and continuous input current are presented. The main advantages and design requirements are discussed.

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