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Volume 11
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Article

Circulating Current Control in Interleaved and Parallel Connected Power Converters †

by
Khalid Javed
1,2,*,
Ruben De Croo
1,2,
Lieven Vandevelde
1,2 and
Frederik De Belie
1,2
1
Department of Electromechanical, Systems and Metal Engineering, Ghent University, 9052 Ghent, Belgium
2
FlandersMake@UGent—Corelab MIRO, Flanders Make, 9052 Ghent, Belgium
*
Author to whom correspondence should be addressed.
†
This article is an extension of the conference paper: “Pulse Width Modulation Harmonic Elimination Method for Common and Differential Mode Circulating Currents,” 2022 IEEE International Conference on Environment and Electrical Engineering and 2022 IEEE Industrial and Commercial Power Systems Europe (EEEIC/I&CPS Europe), Prague, Czech Republic, 2022, pp. 1–6.
Machines 2023, 11(9), 878; https://doi.org/10.3390/machines11090878
Submission received: 26 June 2023 / Revised: 24 August 2023 / Accepted: 26 August 2023 / Published: 1 September 2023
(This article belongs to the Special Issue Advanced Power Electronic Technologies in Electric Drive Systems)
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Abstract

This article analyzes circulating current control in single-phase power electronic converters, focusing on two different topologies: interleaved and parallel configurations. The study involves a bridgeless interleaving topology with two boost converters for increased efficiency. A parallel connection is also examined for monitoring line current, circulating currents, and power factor control. The article widely explains all current loops, including Common Mode Circulating Currents (CMCC) in the bridgeless interleaved topology and Differential Mode Circulating Currents (DMCC) in parallel-connected interleaved power converters. The proposed control scheme employs voltage and current control loops for output voltage and line current control and introduces CMCC and DMCC compensators to eliminate all types of circulating currents. An efficient Power Factor Correction (PFC) and output voltage control method is presented in this article. The effectiveness of the proposed schemes is validated through comparisons with modern control systems. The results are verified using Simulink/MATLAB and experimental setups with TI Instruments Piccolo prototypes and C2000 (TMS320F28035 microcontroller MCU) microcontrollers in parallel configurations.
Keywords: power electronic converters control; circulating currents control; power factor correction power electronic converters control; circulating currents control; power factor correction

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MDPI and ACS Style

Javed, K.; De Croo, R.; Vandevelde, L.; De Belie, F. Circulating Current Control in Interleaved and Parallel Connected Power Converters. Machines 2023, 11, 878. https://doi.org/10.3390/machines11090878

AMA Style

Javed K, De Croo R, Vandevelde L, De Belie F. Circulating Current Control in Interleaved and Parallel Connected Power Converters. Machines. 2023; 11(9):878. https://doi.org/10.3390/machines11090878

Chicago/Turabian Style

Javed, Khalid, Ruben De Croo, Lieven Vandevelde, and Frederik De Belie. 2023. "Circulating Current Control in Interleaved and Parallel Connected Power Converters" Machines 11, no. 9: 878. https://doi.org/10.3390/machines11090878

APA Style

Javed, K., De Croo, R., Vandevelde, L., & De Belie, F. (2023). Circulating Current Control in Interleaved and Parallel Connected Power Converters. Machines, 11(9), 878. https://doi.org/10.3390/machines11090878

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