Ju-Yoen Baek and Kyo-Beum Lee, "Model Predictive Current Control Strategy for Improved Dynamic Response in Cascaded H-Bridge Multilevel Inverters," Journal of Electrical Engineering & Technology, vol. 19, pp. 1395-1405, Mar. 2024. -SCIE > Paper

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Paper

International Journals Ju-Yoen Baek and Kyo-Beum Lee, "Model Predictive Current Control Strategy for Improved Dynamic Response in Cascaded H-Bridge Multilevel Inverters," Journal of Electrical Engineering & Technology, vol. 19, pp. 1395-1405, Mar. 2024. -SCIE

2024

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This paper proposes a model predictive current control technique for fast dynamic response in cascaded H-bridge multilevel inverters. Normally,

cascaded H-bridge multilevel inverters use the PI controller and pulse-width modulation method. However, this method has a limit about the dynamic

response. In contrast, the model predictive control method does not require the tuning of proportional and integral gain values and also does not use

the pulse-width modulation method. Therefore, the model predictive control has the characteristic of fast response, a simplify and flexible control

technique. On the other hand, applying the conventional model predictive control to multilevel inverters results in a large amount of computation

because of a large number of voltage vectors. The proposed method suggests a model predictive control strategy to determine the output voltage

vector and switching state based on the position of the reference voltage. Furthermore, the proposed method reduces the computation compared to

conventional model predictive control techniques, which calculate all voltage vectors, and achieves faster response compared to the method that use

adjacent vectors. The effectiveness of the proposed model predictive current control method was validated through simulation and experimental

results.

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