Design of a GaN-Based Interleaved Nine-Level Flying Capacitor Multilevel Inverter for Electric Aircraft Applications

Modéer, Tomas; Pallo, Nathan; Foulkes, Thomas; Barth, Christopher; Pilawa-Podgurski, Robert C. N.

doi:10.1109/tpel.2020.2989329

Cited by 114 publications

(34 citation statements)

References 24 publications

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“…It is observed from Figure 61 that the seven‐level FC MLI developed by Raman et al 75 achieved the highest efficiency of 99%. The nine‐level MLI proposed by Pallo et al 36 and Modeer et al 49 secured the highest efficiency of 98.6%.…”

Section: Comparartive Analysismentioning

confidence: 97%

“…Modeer et al 49 designed a nine‐level dual‐interleaved FC MLI with GaN switches for electric aircrafts. Figure 28 depicts the power dense interleaved FC MLI topology.…”

Section: Reduced Switch Mlismentioning

confidence: 99%

“…Table 34 presents a detailed comparative analysis based on the number of output voltage levels ( N level ) and component count, namely, number of switches ( N sw ), number of diodes ( N diode ), number of capacitors ( N cap ), number of gate drivers ( N gd ), number of DC voltage sources ( N dc ), number of inductors ( N ind ), and total component count (TCC). It is observed that the single‐phase inverter topologies proposed by Modeer et al, 49 Pallo et al, 36,43 Lei et al, 33 and Pereda and Dixon 29 require a very large switch count relative to other reduced‐switch MLI topologies, when they are used for three‐phase EV motor drive applications.…”

Section: Comparartive Analysismentioning

confidence: 99%

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Review of reduced‐switch multilevel inverters for electric vehicle applications

Aishwarya

Sheela

2021

Circuit Theory & Apps

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This paper deals with the detailed review and comparative analysis of latest reduced switch multilevel inverter topologies for electric vehicle applications. The recent trends in reduced‐switch multilevel inverters are discussed. Detailed review of the reduced‐switch multilevel inverter topologies, their merits and demerits, and the comparative analysis based on component count, total harmonic distortion, and efficiency are conducted. This paper gives a detailed review of recent trends in reduced‐switch multilevel inverter topologies for electric vehicle applications. Switching pattern of the topologies is provided for better understanding of the inverter operation. Comparative analysis of the reduced‐switch inverter topologies based on the component count, total harmonic distortion of output voltage, and efficiency is also presented in this paper. Based on the comparative analysis, it is observed that the interleaved nine‐level flying capacitor multilevel inverter topology achieved the lowest output voltage distortion of 1.6%, which is within the acceptable limits of IEEE 519‐2014 standard. It is observed that the three‐level active neutral point clamped multilevel inverter topology achieved the highest working efficiency of 99.4%. This paper discusses the most recent trends in reduced‐switch multilevel inverters. A comprehensive review of the recent publications and a crisp comparative analysis of the different inverter configurations based on component count, harmonic distortion of output voltage, and efficiency are presented in this paper.

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Section: Comparartive Analysismentioning

confidence: 97%

“…Modeer et al 49 designed a nine‐level dual‐interleaved FC MLI with GaN switches for electric aircrafts. Figure 28 depicts the power dense interleaved FC MLI topology.…”

Section: Reduced Switch Mlismentioning

confidence: 99%

Section: Comparartive Analysismentioning

confidence: 99%

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Review of reduced‐switch multilevel inverters for electric vehicle applications

Aishwarya

Sheela

2021

Circuit Theory & Apps

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“…Similar to the diode-clamped topology, the main disadvantage of the multilevel inverter with flying capacitors is the large number of used capacitors, which makes the practical implementation of this solution larger in terms of packaging. In spite of this drawback, some recent papers report that the topology itself can be successfully applied in BESS based on GaN switches: [115] presents a BESS with a 13-level converter, but [116]-a 9-level converter for aircraft. In addition, the BESS interface converter offered by SolarEdge in [108] utilizes the MLC with flying capacitors as a grid inverter.…”

Section: Multilevel Inverter With Flying Capacitorsmentioning

confidence: 99%

Interface Converters for Residential Battery Energy Storage Systems: Practices, Difficulties and Prospects

et al. 2021

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Recent trends in building energy systems such as local renewable energy generation have created a distinct demand for energy storage systems to reduce the influence and dependency on the electric power grid. Under the current market conditions, a range of commercially available residential energy storage systems with batteries has been produced. This paper addresses the area of energy storage systems from multiple directions to provide a broader view on the state-of-the-art developments and trends in the field. Present standards and associated limitations of storage implementation are briefly described, followed by the analysis of parameters and features of commercial battery systems for residential applications. Further, the power electronic converters are reviewed in detail, with the focus on existing and perspective non-isolated solutions. The analysis covers well-known standard topologies, including buck-boost and bridge, as well as emerging solutions based on the unfolding inverter and fractional/partial power converters. Finally, trends and future prospects of the residential battery storage technologies are evaluated.

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“…By interleaving two cells, each cell can process half of the total power [8]. Beyond that, interleaved operation brings the advantage of reducing output filters, given that they can have larger current ripples, once a large portion of ripple is attenuated through modulation [9].…”

Section: B Interleaved Operationmentioning

confidence: 99%

Analysis and Design of an Interleaved Switched-Capacitor Multilevel ANPC Converter

Bach¹,

Castiblanco²,

Rech³

2021

Proceedings of the 13th Seminar on Power Electronics and Control (SEPOC 2021)

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This paper presents an interleaved switchedcapacitor multilevel ANPC converter (SCANPC) for high power density applications. To demonstrate the feasibility of the idea, the analysis and design of the converter are made initially for one cell and after for the two cells interleaved configuration. In addition, it is used a power loss estimation methodology for the Gallium Nitride switches. Simulations and power loss estimations are shown for a 4kW power prototype.

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Design of a GaN-Based Interleaved Nine-Level Flying Capacitor Multilevel Inverter for Electric Aircraft Applications

Cited by 114 publications

References 24 publications

Review of reduced‐switch multilevel inverters for electric vehicle applications

Review of reduced‐switch multilevel inverters for electric vehicle applications

Interface Converters for Residential Battery Energy Storage Systems: Practices, Difficulties and Prospects

Analysis and Design of an Interleaved Switched-Capacitor Multilevel ANPC Converter

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