FSC-MPC Current Control of a 5-level Half-Bridge/ANPC Hybrid Three-phase Inverter

Multilevel converters are well-established in literature as topologies used in applications aiming to reduce current and voltage Total Harmonic Distortion (THD). This work proposes a current control loop for a 5-level three-phase inverter using Finite Control Set - Model Predictive Control (FCS-MPC)...

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Bibliographic Details
Main Authors: Silva, Jailson Leite, Rocha Matias, Rafael, de Carvalho Alves, Max Dannyel, Nayana Alencar Leao e Silva, Ranoyca, Silva Monteiro, Amanda Thayla, Pessoa dos Santos, Kristian
Format: Conference Proceeding
Language:English
Subjects:
Cost function
Current control
Current measurement
Harmonic distortion
Inverters
Load modeling
multilevel inverter
predictive control
Switches
Topology
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Summary:Multilevel converters are well-established in literature as topologies used in applications aiming to reduce current and voltage Total Harmonic Distortion (THD). This work proposes a current control loop for a 5-level three-phase inverter using Finite Control Set - Model Predictive Control (FCS-MPC). The adopted scheme allows the current control of a system composed of the inverter connected to a RL load, so that the phase currents of the load follow sinusoidal references whose amplitude can be adjusted. The optimal switching sequence is found by the minimization of a cost function that is calculated for the available voltage vectors. The used control method is straightforward, and the constraints can be adjusted in a simple manner during the project. The used method was able to maintain line voltage THD ratios below other techniques such as SHE-PWM, PD-PWM and CS-PWM.
ISSN:2643-9778
DOI:10.1109/COBEP/SPEC44138.2019.9065454