scholarly journals Model predictive control of multilevel cascaded converter with boosting capability – a simulation study

2016 ◽  
Vol 64 (3) ◽  
pp. 581-590 ◽  
Author(s):  
P. Wiatr ◽  
M.P. Kazmierkowski
Keyword(s):  
Model Predictive Control ◽  
Predictive Control ◽  
Current Control ◽  
Power Electronic ◽  
Voltage Balancing ◽  
Cascaded Converter ◽  
Capacitor Voltage ◽  
Standard Solution ◽  
Level Converter ◽  
Power Electronic Converter

Abstract This paper presents a multilevel cascaded H-bridge 5-level converter with boosting capability. The standard solution for boosting voltage in power electronic devices is based on a DC-DC converter with a bulky inductor. However, inductor is a problematic component of a power electronic converter because usually it has to be individually designed and produced for every device and also because its size and weight do not allow for compact construction. This paper presents model predictive control (MPC) method that gives boosting capability for the presented converter. A novel contribution of this paper is the development of a predictive model of the converter and cost function enabling output current control and capacitor voltage balancing.

scholarly journals Model predictive control of multilevel cascaded converter with boosting capability – experimental results

2017 ◽  
Vol 65 (5) ◽  
pp. 589-599
Author(s):  
P. Wiatr ◽  
A. Kryński
Keyword(s):  
Model Predictive Control ◽  
Predictive Control ◽  
Output Voltage ◽  
Current Control ◽  
Experimental Results ◽  
Laboratory Model ◽  
Modular Construction ◽  
Three Phase ◽  
Cascaded Converter ◽  
Level Converter

Abstract The main goal of this paper is to present a five-level converter with the feature of output voltage boosting capability. Thanks to its modular construction and single DC source usage, 5LCHB converter becomes an important alternative for two-level converters operating with DC-DC converters that use bulky inductors. Furthermore, model predictive control (MPC) method is presented, which allows for boosting output voltage of presented converter while providing three-phase load current control and flying capacitor voltage stabilization. The last section describes a 5kVA laboratory model of five-level hybrid converter interfacing RL load and shows experimental results confirming theoretical analysis derived in previous sections.

Model-Predictive-Control-Based Capacitor Voltage Balancing Strategies for Modular Multilevel Converters

2019 ◽  
Vol 66 (3) ◽  
pp. 2432-2443 ◽  
Author(s):  
Andres Mora ◽  
Matias Urrutia ◽  
Roberto Cardenas ◽  
Alejandro Angulo ◽  
Mauricio Espinoza ◽  
...  
Keyword(s):  
Model Predictive Control ◽  
Predictive Control ◽  
Multilevel Converters ◽  
Voltage Balancing ◽  
Modular Multilevel Converters ◽  
Capacitor Voltage
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