A New AC/AC Multilevel Converter Family

Glinka, Marek; Marquardt, Rainer

doi:10.1109/tie.2005.843973

Cited by 681 publications

(236 citation statements)

References 7 publications

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“…This topology, developed by R. Marquardt [35][36], is basically composed of half-bridge two-level modules (Fig. 11) or full-bridge three-level (H-bridge) modules [37][38], which contain low voltage capacitors -a major advantage of this solution. Each phase leg includes modules divided into two equal parts and inductors protecting short circuits.…”

Section: Cmc In Recent Research and Applicationsmentioning

confidence: 99%

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: Cmc In Recent Research and Applicationsmentioning

confidence: 99%

Cascaded multilevel converters in recent research and applications

Malinowski

2017

Bulletin of the Polish Academy of Sciences Technical Sciences

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“…The multilevel families have certain advantages in the high voltage and high power range. In particular, the Modular Multilevel Converter (MMC) [6], [7], [8] has been identified as a potential choice for two main reasons; • Each converter module is a low voltage assembly made of standard industrial components which will allow many suppliers to be involved in the construction and operation. This aspect is particularly interesting for CERN.…”

Section: Active Front-end Design Considerationsmentioning

confidence: 99%

Power System design compromises for large-scale linear particle accelerators

Papastergiou

Aguglia

2013

2013 15th European Conference on Power Electronics and Applications (EPE)

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This paper discusses various design aspects of a 280MW Power System for the Compact LinearCollider (CLIC), a 50km long electrons-positrons accelerator, under feasibility evaluation. The key requirements are a very high accelerator availability and constant power flow from the utility grid, considering the pulsed power nature of CLIC. Firstly, the possible power network and cabling layouts are discussed along with potential difficulties on electrical fault clearance. Following, the use of active front-end converters is examined as a means to control the power flow and power quality seen by the 400kV grid. In particular a modular multilevel converter preliminary configuration is described and the compromises related to energy storage and voltage level are discussed. AbstractThis paper discusses various design aspects of a 280MW Power System for the Compact Linear Collider (CLIC), a 50km long electrons-positrons accelerator, under feasibility evaluation. The key requirements are a very high accelerator availability and constant power flow from the utility grid, considering the pulsed power nature of CLIC. Firstly, the possible power network and cabling layouts are discussed along with potential difficulties on electrical fault clearance. Following, the use of active front-end converters is examined as a means to control the power flow and power quality seen by the 400kV grid. In particular a modular multilevel converter preliminary configuration is described and the compromises related to energy storage and voltage level are discussed.

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“…Notably, for a more comprehensive discussion on CSCs in wind applications, the readers may be refer to recent works [15][16][17][18][19][20][21]. Similarly, a detailed discussion on the operational features of VSCs in wind generation applications may be found in [8,[20][21][22][23][24][25][26][27][28], while a description and operational features of the BoBC/MMLCs may be found in [13,[29][30][31][32][33][34][35].…”

Section: Hvdc Converter Topologies a Brief Reviewmentioning

confidence: 99%

An Examination of AC/HVDC Power Circuits for Interconnecting Bulk Wind Generation with the Electric Grid

Ludois

Venkataramanan

2010

Energies

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Abstract:The application of high voltage dc (HVDC) transmission for integrating large scale and/or off-shore wind generation systems with the electric grid is attractive in comparison to extra high voltage (EHV) ac transmission due to a variety of reasons. While the technology of classical current sourced converters (CSC) using thyristors is well established for realization of large HVDC systems, the technology of voltage sourced converters (VSC) is emerging to be an alternative approach, particularly suitable for multi-terminal interconnections. More recently, a more modular scheme that may be termed 'bridge of bridge' converters (BoBC) has been introduced to realize HVDC systems. While all these three approaches are functionally capable of realizing HVDC systems, the converter power circuit design trade-offs between these alternatives are not readily apparent. This paper presents an examination of these topologies from the point of view of power semiconductor requirements, reactive component requirements, operating losses, fault tolerance, multi-terminal operation, modularity, complexity, etc. Detailed analytical models will be used along with a benchmark application to develop a comparative evaluation of the alternatives that maybe used by wind energy/bulk transmission developers for performing engineering trade-off studies. Keywords

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A New AC/AC Multilevel Converter Family

Cited by 681 publications

References 7 publications

Cascaded multilevel converters in recent research and applications

Cascaded multilevel converters in recent research and applications

Power System design compromises for large-scale linear particle accelerators

An Examination of AC/HVDC Power Circuits for Interconnecting Bulk Wind Generation with the Electric Grid

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