Three-Level Inverter Control Techniques: Design, Analysis, and Comparisons

Authors

  • Dan Selisteanu Department of Automatic Control and Electronics, University of Craiova, Romania
  • Monica Roman Department of Automatic Control and Electronics, University of Craiova, Romania
  • Lucian Mandache Faculty of Electrical Engineering, University of Craiova, Romania
  • Razvan Prejbeanu Department of Automatic Control and Electronics, University of Craiova, Romania
  • Sergiu Ivanov Faculty of Electrical Engineering, University of Craiova, Romania
  • Alexandru Radu R&D Electronic and Electrical Power Department, INDAELTRAC Ltd., Romania

DOI:

https://doi.org/10.5755/j02.eie.29015

Keywords:

Multilevel power converter, PID control, Induction motors, Simulation, Tuning methods

Abstract

This work addresses the analysis and design of various Proportional-Integral-Derivative (PID) control techniques for a three-level inverter. Multilevel power converters are modern and basic elements of high-voltage electric drive and power supply systems. By using simulations and specific computer-aided design tools, the overall functional characteristics of multilevel converters, as well as the electrical demands of the components, can be accurately assessed to obtain an appropriate control solution. An innovative and detailed software model of a three-level inverter is developed and then used for the implementation of control techniques. Several tuning methods are used to tune PID controllers for two specific cases: the multilevel inverter with a linear load and with an asynchronous motor load, respectively. A detailed analysis and comparisons of the quality criteria and control performance are achieved. This analysis shows that the choice of controller type depends on the inverter load. For the linear load, proper results are obtained with a PI Nichols-tuned controller, and for the asynchronous load, with a PI controller tuned via a modified Hokushin method. The computer-aided design tools can be further used for the simulation of the equipment in various operating conditions, normal and fault, following all functional parameters.

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Published

2021-06-28

How to Cite

Selisteanu, D. ., Roman, M., Mandache, L., Prejbeanu, R., Ivanov, S. ., & Radu, A. (2021). Three-Level Inverter Control Techniques: Design, Analysis, and Comparisons. Elektronika Ir Elektrotechnika, 27(3), 26-37. https://doi.org/10.5755/j02.eie.29015

Issue

Section

ELECTRICAL ENGINEERING

Funding data