Optimal Phase-Shifted Modulation Method for Suppressing the Current Ripple of Modular Multilevel Converter-Bidirectional DC–DC Converter Under Unbalanced Operation

Chen, Peng; Liu, Jilong; Xiao, Fei; Zhu, Zhichao; Huang, Zhaojie; Ren, Qiang

doi:10.1109/jestpe.2021.3106159

Cited by 6 publications

(5 citation statements)

References 16 publications

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“…In the study of [15], a phase-shifted modulation (PSM) method was introduced to minimize current ripple in a modular multilevel converter of a bidirectional DC-DC converter, even under unstable operating conditions. Tis method involves adjusting the phase-shift angle between the pulse width modulation (PWM) signals of the half-bridge cells of the modular multilevel converter.…”

Section: Introductionmentioning

confidence: 99%

Comprehensive Analysis of ZVS Operation Range and Deadband Conditions of a Dual H-Bridge Bidirectional DC-DC Converter with Phase Shift Control

Adam

Chen

Kamel

et al. 2023

Journal of Electrical and Computer Engineering

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This study offers a thorough examination of the zero voltage switching (ZVS) operation range and deadband conditions for a bidirectional DC-DC converter with phase shift control, featuring dual H-bridge. The analysis considers the soft switching range of the DAB converter, accounting for the impact of the headband and the ZVS capacitor. By applying the differential equation of the circuit during deadband time, a sufficient constraint for the input and output bridges can be calculated. The findings indicate that as the output voltage increases, the minimum phase shift value required to achieve ZVS decreases, and expanding the phase shift value will expand the ZVS range and reduce switching losses. The study provides simulation results for various operating conditions, validating the theoretical analysis of the proposed system. In addition, the results furnish information about the circuit behavior during the deadband and waveforms. Finally, MATLAB/SIMULINK verifies the simulation results for different operating stages.

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Section: Introductionmentioning

confidence: 99%

Comprehensive Analysis of ZVS Operation Range and Deadband Conditions of a Dual H-Bridge Bidirectional DC-DC Converter with Phase Shift Control

Adam

Chen

Kamel

et al. 2023

Journal of Electrical and Computer Engineering

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“…To control the input side of the series-connected modules, different modulation strategies can be used, very similar to the ones used in Multi-Modular Converters (MMCs) [3][4][5][6][7][8][9][10][11], highlighting as the most used, modulation based on phase displacement [8,9].…”

Section: Introductionmentioning

confidence: 99%

“…An analysis of different modulation strategies used in an MMC has been conducted in [5][6][7][8][9][10][11][12][13][14]. These works try to optimize the operation of the MMC by mitigating the imbalance in voltage capacitors, reducing the circulation currents or reducing the commonmode voltage.…”

Section: Introductionmentioning

confidence: 99%

“…These works try to optimize the operation of the MMC by mitigating the imbalance in voltage capacitors, reducing the circulation currents or reducing the commonmode voltage. To control the input side of the series-connected modules, different modulation strategies can be used, very similar to the ones used in Multi-Modular Converters (MMCs) [3][4][5][6][7][8][9][10][11], highlighting as the most used, modulation based on phase displacement [8,9].…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Improved Operation Strategy for the High Voltage Input Stage of a Multi-Port Smart Transformer

et al. 2022

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Smart transformers are considered a crucial part of future smart grids as they will operate as the energy router and be able to control the power flows from and to the microgrids since they are placed in the border. A multi-port transformer can integrate different energy resources, loads and energy storage systems, optimizing the power flows between these elements. Combining both concepts, a multi-port smart transformer is obtained that is able to integrate efficiently distributed and renewable energy resources, electric vehicle chargers, prosumers and energy storage in both AC and DC microgrids. Nevertheless, the operation of these transformers, composed of several modules connected in series to the high-voltage grid is not easy, mainly due to the different power consumed or generated by each module. In this paper this issue is analyzed and different operation strategies for coordinating the series-connected modules at the input side are studied by simulation. The paper will expose how it is possible to extend the proper operation of the system if a reactive power controller is implemented.

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“…Efficiency, weight, transformer leakage and magnetizing inductances were handled at the same time with nondominated sorting genetic algorithm (NSGA-II). In modulation parameter optimization, GA was used for modular multilevel converter -bidirectional dc-dc converter (MMC-BDC) in [105] to suppress the medium voltage dc side current ripple. A variant of simulated annealing algorithm, the archived multi-objective simulated annealing (AMOSA) algorithm, was adopted for the output LC filter of buck converter, which could take volume, filtering capability and power efficiency into account simultaneously.…”

Section: Application Of Artificial Intelligence In the Power Converte...mentioning

confidence: 99%

The dual active bridge converter design with artificial intelligence

Lin¹

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Optimal Phase-Shifted Modulation Method for Suppressing the Current Ripple of Modular Multilevel Converter-Bidirectional DC–DC Converter Under Unbalanced Operation

Cited by 6 publications

References 16 publications

Comprehensive Analysis of ZVS Operation Range and Deadband Conditions of a Dual H-Bridge Bidirectional DC-DC Converter with Phase Shift Control

Comprehensive Analysis of ZVS Operation Range and Deadband Conditions of a Dual H-Bridge Bidirectional DC-DC Converter with Phase Shift Control

Improved Operation Strategy for the High Voltage Input Stage of a Multi-Port Smart Transformer

The dual active bridge converter design with artificial intelligence

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