Capacitor voltage balancing in a 5-L full-bridge flying capacitor inverter

Moritz, R.; Batschauer, Alessandro Luiz

doi:10.1109/cobep.2017.8257234

Cited by 10 publications

(2 citation statements)

References 14 publications

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“…Therefore, the best approach to minimize the filter size while using a medium switching frequency is to use multilevel inverter topologies. Several single-phase multilevel inverter topologies were proposed in the literature, and among them, the most famous ones are as follows: flying capacitor (FC), 18 cascaded Hbridge (CHB), 19 neutral point clamped (NPC), 20 and packed U cells (PUC). 21 The main differences between them lie in the number of components for additional levels and their optimal control strategies.…”

Section: Single-phase Inverter Designmentioning

confidence: 99%

Mitigation of voltage imbalance in power distribution system using MPC‐controlled packed‐U‐cells converter

Ahmed

Al‐Emadi

Gastli

et al. 2019

Energy Science & Engineering

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Delivering high power quality in single‐phase distribution has witnessed more challenges especially with the increased penetration of single‐phase distributed generation (DG). This paper proposes a smart solid‐state‐based transformer, which aims to replace traditional ones, for single‐phase distribution laterals, and provide load balancing and protection to the three‐phase main feeders, that is based on connecting the single‐phase lateral to the three‐phase main feeder through a power electronics converter. This converter transfers balanced power from and to the three‐phase feeder while automatically regulating the lateral single‐phase voltage, hence, assuring high power quality without requiring any transformer on‐load tap changer. A 7‐level packed‐U‐cells (PUC) single‐phase inverter topology was used to deliver single‐phase regulated sinusoidal voltage to the AC loads, and at the same time, it is able to deliver DC power to DC loads. The simulation and hardware‐in‐the‐loop (HIL) results have shown that the proposed topology delivers high power quality for both AC and DC loads under different operating scenarios. Moreover, the converter can play the role of a solid‐state protection device coordinated with other up‐ and downstream protective devices. Finally, this system can be integrated within the smart grid allowing more flexibility for automation and efficient control of the grid.

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Section: Single-phase Inverter Designmentioning

confidence: 99%

Mitigation of voltage imbalance in power distribution system using MPC‐controlled packed‐U‐cells converter

Ahmed

Al‐Emadi

Gastli

et al. 2019

Energy Science & Engineering

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“…Various modulation techniques are available in literature for the modulation of MLI [22]. Among them, the high-frequency pulse width modulation (PWM) technique such as level-shifted PWM and carrier phaseshifted PWM technique [23], [24], space vector modulation techniques (SVM) have been used [25]. Furthermore, synchronous optimal PWM [26], [27], active harmonic elimination [28], selective harmonic elimination [29], and nearest level control [30] methods are described as low semi-conductor switchingfrequency modulation technique.…”

Section: Introductionmentioning

confidence: 99%

Nine-level inverter with lesser number of power semiconductor switches using dSPACE

Raj

Mandal

et al. 2022

IJPEDS

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In this paper, a single-phase nine-level multilevel inverter (MLI) topology is created in which reduced number of switches, diodes and gate driver circuits can be used so as to obtain higher output voltage levels. Due to this configuration, the blocking voltage value across the switches will also get reduced. In this proposed single-phase MLI topology, increase in output voltage levels can be observed whenever there is increment in the number of switches in the configuration. Proper mathematical modeling and analysis of the voltage waveform of the proposed inverter have been done for a 9-level MLI. MATLAB platform is used for modeling and simulation of the MLI. Modulation index is varied in order to observe various outcomes through simulation. The proposed nine-level inverter configuration is experimentally evaluated in the laboratory for various modulation indices so as to validate the simulation results. Comparison of this topology is done with the classical MLIs in order to illustrate its advantages.

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A New Topology for Medium-Voltage Applications

Guo

Narimani

2018

2018 IEEE Energy Conversion Congress and Exposition (ECCE)

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Capacitor voltage balancing in a 5-L full-bridge flying capacitor inverter

Cited by 10 publications

References 14 publications

Mitigation of voltage imbalance in power distribution system using MPC‐controlled packed‐U‐cells converter

Mitigation of voltage imbalance in power distribution system using MPC‐controlled packed‐U‐cells converter

Nine-level inverter with lesser number of power semiconductor switches using dSPACE

A New Topology for Medium-Voltage Applications

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