Converter Topologies and Power Semiconductors for Industrial Medium Voltage Converters

Hiller, Marc; Sommer, Rainer; Beuermann, Max

doi:10.1109/08ias.2008.308

Cited by 20 publications

(4 citation statements)

References 4 publications

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“…Additionally, at 40 ms the HV ac voltage frequency changes from 400 Hz to 300 Hz, the HV dc port signals are not affected. As has been mentioned in the list of claims in [8], the number of commutations of each cell per grid cycle is significantly lower in the DIMMC, as can be seen in Fig. 7.…”

Section: A Steady State Operationmentioning

confidence: 57%

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Distributed Input Multiport MMC Based Power Converter for AC and DC Loads

Cano¹,

Rodríguez

Castro³

et al. 2023

IEEE Trans. Power Electron.

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A distributed input multi-port topology is proposed in this work based on the use of a Modular Multilevel Converter (MMC). The Distributed Input Modular Multilevel Converter (DIMMC) is based on the application of an MMC to multi-phases systems, such as multiport generators or multiport transformers. The proposed converter is devised for high voltage and high-power applications with distributed inputs such as ship electric propulsion systems or industrial application available for both ac or dc loads. The main claims of the DIMMC are integration, modularity, scalability and fault tolerance. This work analyzes the steady state behavior of the converter, fault tolerance and the advantages/disadvantage of its application.I.

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Section: A Steady State Operationmentioning

confidence: 57%

“…To each of the multiple three-phase systems either an active or a passive rectifier is connected, and the series connection of their outputs form a HV dc bus. Similarly, in [7] and [8] a multiport transformer is used in an industrial application. In the case of [7] a modular converter formed by an H-bridge cells is presented.…”

Section: Introductionmentioning

confidence: 99%

Distributed Input Multiport MMC Based Power Converter for AC and DC Loads

Cano¹,

Rodríguez

Castro³

et al. 2023

IEEE Trans. Power Electron.

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“…A two level s the switching frequency chieve the same ripple in fact coupled with the NPC inverter offers two erter. First, there are far nverter and second, if an omponents will be smaller er components for a two frequency [11].…”

Section: A the 3l Npc Vsc Structurementioning

confidence: 98%

A new fault-tolerant realization of the active three-level NPC converter

Rocha

Silva

Pires³

et al. 2014

2014 IEEE Energy Conversion Congress and Exposition (ECCE)

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The three-level (3L) neutral-point-clamped (NPC) voltage-source (VSC) converter has been the standard solution in medium-voltage range for industrial applications. Recently, the NPC converter structure was improved by adding two extra active switches per phase leg, thus overcoming one of its main drawbacks: the unequal power loss among the power semiconductors. The resulting structure became known as active NPC (ANPC) converter. The high availability of these power converters is mandatory, since their maintenance or replacement imply equipment downtimes incompatible with the requirements of the production processes. The faulttolerant operation of such converters has been addressed in the technical literature, but the main proposed solutions result in more complexity and higher parts count. This work proposes a new fault-tolerant structure for the ANPC IGBT-based converter, using standard devices, with very low additional cost and small complexity. The main goal is to show that the ANPC converter can overcome different and successive failures in its power devices without loss of functionality, before its definitive downtime.

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“…The large drive market with power ratings up to 25 MW is dominated by voltage source inverters in IGBT as well as in IGCT technology [1]. The frequency inverter topologies need to be designed for the maximum blocking voltage class for which power semiconductor devices are available.…”

Section: Fig1 Principle Circuit Diagram Of a Medium Voltage Converter...mentioning

confidence: 99%

An Experimental Study of High Voltage SiC PiN Diode Modules Designed for 6.5 KV / 1 KA

Peters¹,

Thomas

Duetemeyer

et al. 2011

MSF

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The paper describes first results of 6.5 kV SiC PiN diode modules which are designed as neutral point valves for medium-voltage power inverters rated for 1000 A. The power module consists of 4 AlN DCB substrates soldered on an AlSiC base plate. Each DCB is equipped with 20 SiC PiN diodes operating in parallel. The total active area of all 80 diode chips is 5.68 cm². At the rated current of 2 x 500A the forward voltage drops from 4.1 V at room temperature to 3.9 V at an averaged junction temperature of 125°C. The switching experiments show a very low reverse recovery charge of about 30 µC only. The conduction loss is comparable to the corresponding 6.5 kV silicon diode whereas the dynamic loss is marginal with respect to the forward conduction loss if the switching frequency is held below 10 kHz.

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Converter Topologies and Power Semiconductors for Industrial Medium Voltage Converters

Cited by 20 publications

References 4 publications

Distributed Input Multiport MMC Based Power Converter for AC and DC Loads

Distributed Input Multiport MMC Based Power Converter for AC and DC Loads

A new fault-tolerant realization of the active three-level NPC converter

An Experimental Study of High Voltage SiC PiN Diode Modules Designed for 6.5 KV / 1 KA

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