An Improved Seven-Level PUC Inverter Topology With Voltage Boosting

Ali, Jagabar Sathik Mohamed; Bhatnagar, Kaustubh; Sandeep, N.; Blaabjerg, Frede

doi:10.1109/tcsii.2019.2902908

Cited by 85 publications

(61 citation statements)

References 16 publications

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“…Few more seven-level boost inverter topologies have been proposed in [19]- [25], however, the higher number of components have always been the major concern about these topologies. Furthermore, the topologies proposed in [21], [22], [24], [25] have a lower value of boosting factor.…”

Section: Introductionmentioning

confidence: 99%

A Single DC Source Nine-Level Switched-Capacitor Boost Inverter Topology With Reduced Switch Count

et al. 2020

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This paper presents a new boost inverter topology with nine level output voltage waveform using a single dc source and two switched capacitors. The capacitor voltages are self-balancing and thus is devoid of any sensors and auxiliary circuitry. The output voltage is twice higher than the input voltage, which eliminates the need for an input dc boost converter especially when the inverter is powered from a renewable source. The merits of the proposed topology in terms of the number of devices and cost are highlighted by comparing the recent and conventional inverter topologies. In addition to this, the total voltage stress of the proposed topology is lower and have a maximum efficiency of 98.25%. The operation and dynamic performance of the proposed topology have been simulated using PLECS software and are validated using an experimental setup considering a different dynamic operation. INDEX TERMS Multilevel inverter, nine-level inverter, step-up inverter, switched capacitor, reduce switch count.

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Section: Introductionmentioning

confidence: 99%

A Single DC Source Nine-Level Switched-Capacitor Boost Inverter Topology With Reduced Switch Count

et al. 2020

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“…One class of multilevel inverters has been packed U-cell (PUC) [9][10][11][12][13][14]. In PUC converters, the lack of boosting ability has been the main limitation of these converters for high-voltage applications.…”

Section: Introductionmentioning

confidence: 99%

“…In PUC converters, the lack of boosting ability has been the main limitation of these converters for high-voltage applications. An improved PUC with boosting feature has been proposed in [13], however the boosting has a limited value of 1.5. Nowadays, switched-capacitor (SC) MLI is studied as a new approach for solving the problems mentioned above.…”

Section: Introductionmentioning

confidence: 99%

Dual input switched‐capacitor‐based single‐phase hybrid boost multilevel inverter topology with reduced number of components

Rawa

Siddique

Mekhilef

et al. 2020

IET Power Electronics

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A new switched-capacitor-based topology with features of boosting and self-voltage balancing of the capacitor has been proposed in this study. The proposed multilevel inverter topology uses two isolated dc voltage sources with a switchedcapacitor to produce 11 levels across the load. In this study, two different modes of the selection of dc voltage sources have been discussed for the proposed topology. Furthermore, the generalised structure of the proposed boost topology has also been discussed. Quantitative comparison with several topologies has been carried out to set the benchmark of the proposed topology. Selective harmonic elimination pulse width modulation technique has been adopted to improve the performance of the suggested topology. The power loss analysis of the proposed topology gives the maximum efficiency of 96.5% at the output power of 100 W and has an efficiency value of 95.3% at the output power of 500 W. The proposed topology has been simulated using PLECS and the simulation results have been verifying using an experimental prototype. The proposed topology has been tested for the different types of load and changes in the modulation index. The experimental results have verified the feasibility of the proposed topology.

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“…Several power converter topologies that combine neutral point clamped, T-type, flying-capacitor, modular multilevel converters and cascaded H-bridge have been developed as a part of the MLI family and the so-called hybrid MLIs [4][5][6][7][8]. The majority of such topologies require an additional control strategy to balance floating capacitors (FCs) and it is increasing the circuit complexity and implementation cost [4,[9][10][11][12][13][14]. A hybrid topology cascading fivelevel active neutral point clamped (ANPC) and T-type converter in [10] utilise three FCs and require a higher number of power devices.…”

Section: Introductionmentioning

confidence: 99%

Seven‐level boosting active neutral point clamped inverter using cross‐connected switched capacitor cells

Ali

Sandeep

Almakhles

et al. 2020

IET Power Electronics

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In this study, an active neutral point clamped-type boosting switched-capacitor multilevel inverter (SCMLI) with selfvoltage balancing capability is proposed. In the proposed topology, a novel switched capacitor cell is used, which has eight switches and two diodes. The presented topology has reduced power component count with self-boosting and balancing abilities. The distinctive features of the proposed topology are highlighted and benchmarked against other recent 7L-SCMLI topologies. To validate the feasibility of the proposed topology, experimental tests are performed on a 1 kW prototype hardware setup.

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An Improved Seven-Level PUC Inverter Topology With Voltage Boosting

Cited by 85 publications

References 16 publications

A Single DC Source Nine-Level Switched-Capacitor Boost Inverter Topology With Reduced Switch Count

A Single DC Source Nine-Level Switched-Capacitor Boost Inverter Topology With Reduced Switch Count

Dual input switched‐capacitor‐based single‐phase hybrid boost multilevel inverter topology with reduced number of components

Seven‐level boosting active neutral point clamped inverter using cross‐connected switched capacitor cells

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