Evaluation of Three-Level Rectifiers for Low-Voltage Utility Applications

Teichmann, R.; Malinowski, Mariusz; Bernet, Steffen

doi:10.1109/tie.2005.843908

Cited by 91 publications

(42 citation statements)

References 13 publications

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“…Among the main benefits one may count a superior harmonic spectrum for a given switching frequency, a lower dv/dt stress at the converter terminals, cables and end windings of transformers/generators, a lower common mode voltage, and substantially lower semiconductor switching losses, particularly at medium to higher switching frequencies. A three-level topology is also a highly competitive alternative to the two-level structure in terms of cost, efficiency, and weight/size [2].…”

Section: Malinowskimentioning

confidence: 99%

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Cascaded multilevel converters in recent research and applications

Malinowski

2017

Bulletin of the Polish Academy of Sciences Technical Sciences

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Abstract. Multilevel converters have been intensively investigated and developed since 1960s and have found successful industrial applications. The aim of this paper is to present state of the art as well as recent research and applications of cascaded multilevel converters, which are a very interesting solution for power distribution systems and renewable energy sources. Cascaded multilevel converters can easily operate at medium and high voltage based on the series connection of power modules (cells), which use standard low-voltage component configurations. Series connections of modules (cells) allow for high quality output voltages and input currents, reduction of passive components and availability of component redundancy. Due to these features the cascaded multilevel converters have been recognized as attractive solutions for high-voltage direct-current (HVDC) transmission, solid state transformers (SST) and photovoltaic (PV) systems.Key words: multilevel converters, cascaded converters, modular multilevel converters, modulation, solid state transformer, photovoltaic systems. Cascaded multilevel converters in recent research and applications M. MALINOWSKIInstitute of Control and Industrial Electronics, Warsaw University of Technology, 75 Koszykowa St., 00-662 Warsaw, Poland for multilevel structures. Among the main benefits one may count a superior harmonic spectrum for a given switching frequency, a lower dv/dt stress at the converter terminals, cables and end windings of transformers/generators, a lower common mode voltage, and substantially lower semiconductor switching losses, particularly at medium to higher switching frequencies. A three-level topology is also a highly competitive alternative to the two-level structure in terms of cost, efficiency, and weight/size [2].The final choice of converter topology for RES depends on type of application, expected power, reliability demand and price. Three-phase multilevel converters, e.g. three-level neutral point clamped (3L-NPC) [3][4][5][6], three-level transistor clamped (3L-TCC) [4] or five-level active neutral point clamped (5L-ANPC) [7][8][9] are most popular in high power applications. However, 3L-NPC converters may be considered even in power range of few hundreds kVA, which was discussed in [2].

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Section: Malinowskimentioning

confidence: 99%

“…three-level neutral point clamped (3L-NPC) [3][4][5][6], three-level transistor clamped (3L-TCC) [4] or five-level active neutral point clamped (5L-ANPC) [7][8][9] are most popular in high power applications. However, 3L-NPC converters may be considered even in power range of few hundreds kVA, which was discussed in [2]. …”

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Cascaded multilevel converters in recent research and applications

Malinowski

2017

Bulletin of the Polish Academy of Sciences Technical Sciences

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“…Using IGBT as the switching device, in order to ensure the drive signal well anti-interference characteristic, the optical drive is adopted. Because direct drive converters mainly work in the sea or harsh conditions, each component cabinet internal need to prevent salting out and dust, on the other hand, on account of larger power for the direct drive converter, so the requirements of heat dissipation is higher, if the cooling volume will be great, so often cooled by water cooling [11]. The technical parameters are shown in Table 1.…”

Section: Analysis Of Technical Conditionsmentioning

confidence: 99%

Research on the Grid-Converter for High Power Permanent Magnet Direct-Driven Wind Turbine

Gu¹,

Ji²,

Xu³

et al. 2015

IJCA

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“…Inductive components are a critical component in today's power electronics based power systems [1]. To achieve lower size and cost, high-order passive filters [2] are preferred in general, to limit the switching harmonics from Pulse Width Modulation (PWM).…”

Section: Introductionmentioning

confidence: 99%

Evaluation of core loss in magnetic materials employed in utility grid AC filters

Beres

Wang

Blaabjerg

et al. 2016

2016 IEEE Applied Power Electronics Conference and Exposition (APEC)

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Abstract-Inductive components play an important role in filtering the switching harmonics related to the pulse width modulation in voltage source converters. Particularly, the filter reactor on the converter side of the filter is subjected to rectangular excitation which may lead to significant losses in the core, depending on the magnetic material of choice and current ripple specifications. Additionally, shunt or series reactors that exists in LCL or trap filters and which are subjected to sinusoidal excitations have different specifications and requirements. Therefore, the core losses of different magnetic materials adopted in utility grid ac filters have been investigated and measured for both sinusoidal and rectangular excitation, with and without dc bias condition. The core loss information can ensure costeffective passive filter designs and may avoid trial-error design procedures of the passive components parameters.

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Evaluation of Three-Level Rectifiers for Low-Voltage Utility Applications

Cited by 91 publications

References 13 publications

Cascaded multilevel converters in recent research and applications

Cascaded multilevel converters in recent research and applications

Research on the Grid-Converter for High Power Permanent Magnet Direct-Driven Wind Turbine

Evaluation of core loss in magnetic materials employed in utility grid AC filters

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