High Switching Frequency Operation of a Single-Phase Five-Level Hybrid Active Neutral Point Clamped Inverter with a Model Predictive Control Approach

Mohammad Najjar*, Mahdi Shahparasti, Rasool Heydari, Morten Nymand

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingArticle in proceedingsResearchpeer-review

Abstract

Wide bandgap (WBG) devices such as Silicon-Carbide (SiC) MOSFETs can be utilized to increase the switching frequency of power electronic converters. The size of passive components of an output filter can be reduced by increasing the switching frequency of converters or the number of output levels thorough the employment of multilevel topologies. Therefore, the combination of multilevel converters and WBG switches with a high switching frequency can improve the dynamic of converters. Meanwhile, a high bandwidth controller is also required to achieve a fast dynamic response of the system. In this paper, an advanced model predictive control (MPC) approach, based on the concept of hysteresis current control, is presented for a single-phase five-level hybrid active neutral point clamped (ANPC) inverter. A hybrid modulation technique with different switching frequencies is considered in this paper. As a result, different semiconductor technologies including SiC and Si are employed in the structure of the converter. Considering the AC and DC sides mathematical modeling of the converter, an MPC with the ability to control the neutral point (NP) voltage is designed. Finally, experimental results show that by utilizing the SiC MOSFETs and the proposed advanced MPC structure, the inverter's switching frequency is increased, with lower current ripple and fast dynamic performance.

Original languageEnglish
Title of host publication2022 24th European Conference on Power Electronics and Applications (EPE'22 ECCE Europe)
Number of pages7
PublisherIEEE
Publication dateSept 2022
ISBN (Electronic)9789075815399
Publication statusPublished - Sept 2022
Event24th European Conference on Power Electronics and Applications, EPE 2022 ECCE Europe - Hanover, Germany
Duration: 5. Sept 20229. Sept 2022

Conference

Conference24th European Conference on Power Electronics and Applications, EPE 2022 ECCE Europe
Country/TerritoryGermany
CityHanover
Period05/09/202209/09/2022

Keywords

  • Capacitor voltage balancing
  • Model Predictive Control
  • Multi-level converters
  • Silicon Carbide (SiC)
  • Voltage Source Inverter (VSI)

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