Modulated Predictive Current Control Technique for a Three-Phase Four-Wire Active Power Filter based on H-bridge Two-Level Converter

Renault, Alfredo; Rodas, Jorge; Comparatore, Leonardo; Pacher, Julio; Gregor, Raúl

doi:10.1109/upec.2018.8542044

Cited by 10 publications

(3 citation statements)

References 21 publications

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“…Among the MMC topologies, the cascade H-Bridge (CHB) configuration stands out as a popular choice due to its inherent modularity, facilitating scalability to generate higher MMC voltage levels. Additionally, the CHB-based MMC design avoids the need to incorporate an extensive array of flying capacitors or clamping diodes in the power converter topology [17]. Consequently, one of the most widely discussed topologies in the literature is the seven-level voltage source converter (7L-VSC) based on three CHB cells in series per phase [18].…”

Section: Introductionmentioning

confidence: 99%

Part I—Advancements in Power Converter Technologies: A Focus on SiC-MOSFET-Based Voltage Source Converters

et al. 2023

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Power converter technologies have become vital in various applications due to their efficient management of electrical energy. With the growing prominence of renewable energy sources such as solar and wind, the high penetration of power electronic converters has been justified. However, ensuring power quality has emerged as a significant challenge for grid-connected power converters. The divergence from the ideal sinusoidal waveform in terms of magnitude and frequency impacts both grid-side currents and voltages. Several studies have proposed solutions to address power quality issues at the load side. The advancement of power converters has been fueled by the development of high-performance microprocessors and the emergence of high-speed switching devices, such as SiC-MOSFETs. This paper focuses on the design of voltage source converters, particularly those based on SiC-MOSFET semiconductor devices. The article presents the design of H-Bridge cells, discusses two-level voltage source converters based on cascade H-Bridge cells in a parallel configuration with experimental fault analysis, addresses the seven-level voltage source converter topology, and explores the design and experimental results of the matrix converter. The findings underscore the importance of considering the entire converter design for improved performance at high switching frequencies. The article concludes by summarizing the main outcomes and implications of this research.

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Section: Introductionmentioning

confidence: 99%

Part I—Advancements in Power Converter Technologies: A Focus on SiC-MOSFET-Based Voltage Source Converters

et al. 2023

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“…Among these MMC topologies, the cascade H-Bridge (CHB) is a popular choice because of its modularity, which simplifies the extension for a higher number of levels of the MMC. Moreover, the MMC does not demand a vast number of flying capacitors or clamping diodes [12]. Consequently, the CHB-based MMC is currently a competitive choice in the new era of VSCs [13].…”

Section: Introductionmentioning

confidence: 99%

Model Predictive Control of a Modular 7-Level Converter Based on SiC-MOSFET Devices—An Experimental Assessment

et al. 2022

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Power converter technology has expanded into a wide range of low, medium, and high power applications due to the ability to manage electrical energy efficiently. In this regard, the modular multilevel converter has become a viable alternative to ensure an optimal harmonic profile with a sinusoidal voltage at the load side. Model predictive control (MPC) is a state-of-the-art technique that has been successfully used to control power electronic converters due to its ability to handle multiple control objectives. Nevertheless, in the classical MPC approach, the optimal vector is applied during the whole sampling period producing an output voltage. This solution causes an unbalanced switching frequency of the power semiconductor, which then causes unbalanced stress on the power devices. Modulation strategies have been combined with MPC to overcome these shortcomings. This paper introduces the experimental assessment of a 7-level converter combining a simple phase shift multicarrier pulse-width modulation approach with the MPC technique. A custom test-bed based on SiC-MOSFETs switches is used to validate the proposal.

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“…The control strategies implemented in the APF are the PID control techniques which need a large number of variables to be measured [19], the hysteresis control, which has a high band value, producing the greater propagation of low-order harmonic distortion and a low value [20], increasing switching losses, while model-based predictive control (MPC) is a nonlinear control technique applied to power converters [21,22], having some advantages such as fast dynamic response, the ability to handle multivariable systems [23], nonlinearities, and constraints. Some disadvantages are that it depends on the model of the system, and it uses a variable switching frequency, which causes the propagation of low-order harmonics in the output current that deteriorate the performance of the system [24]. On the other hand, the MPC applied to the APF based on seven-level cascade H-bridge converters uses the switching states, which correspond to a specific voltage level, which is normally a constant reference voltage [25], but having floating capacitors such as the DC-link, by which they are charged and discharged according to the polarity of the filter current, which generates ripples in the capacitor voltages.…”

Section: Introductionmentioning

confidence: 99%

Harmonics Compensation by Using a Multi-Modular H-Bridge-Based Multilevel Converter

et al. 2021

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This paper presents an active power filter based on a seven-level cascade H-bridge where the main contribution is a control strategy that combines model-based predictive control, the voltage vectors of the converter output levels, the phase shift PWM technique, and suboptimal DC-link voltage control. The proposed scheme greatly simplified the overall control system, making it well suited to compensate the current harmonics distortion at the grid side, generated by nonlinear loads connected to the point of common coupling. In addition, the proposed method achieved a balancing of the capacitor voltages of the seven-level cascade H-bridge converter by using the minimum DC-link voltage sensors. This feature significantly reduced the control system complexity and provided a low computational burden. Experimental results confirmed the feasibility and effectiveness of the proposed controller.

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Modulated Predictive Current Control Technique for a Three-Phase Four-Wire Active Power Filter based on H-bridge Two-Level Converter

Cited by 10 publications

References 21 publications

Part I—Advancements in Power Converter Technologies: A Focus on SiC-MOSFET-Based Voltage Source Converters

Part I—Advancements in Power Converter Technologies: A Focus on SiC-MOSFET-Based Voltage Source Converters

Model Predictive Control of a Modular 7-Level Converter Based on SiC-MOSFET Devices—An Experimental Assessment

Harmonics Compensation by Using a Multi-Modular H-Bridge-Based Multilevel Converter

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