Switched Capacitor-Based Power Electronic Converter—Optimization of High Frequency Resonant Circuit Components

Waradzyn, Zbigniew; Stala, Robert; Mondzik, Andrzej; Пирог, С.

doi:10.1007/978-3-319-45735-2_15

Cited by 12 publications

(11 citation statements)

References 17 publications

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“…Low power SCVMs operating below 600 V on the output can be achieved as high frequency MOSFET-based converters. Such type of converters is analyzed in details in [15,16], where the problems of selection of components, feasibility, an impact of parasitic components as well as efficiency are presented. High power SCVMs as well as other switched capacitor converters need specific approach.…”

Section: Concept Of Operation and Composition Of The Scvmmentioning

confidence: 47%

“…In the DC-DC conversion area, a number of topologies, concepts and families of the SC converters are proposed in . For many high power applications, in kilowatt range, many new, attractive conversion methods based on SC converters are presented [3][4][5][6][7][8][9][10][11][12][13][14][15][16]. (Fig.…”

Section: Introductionmentioning

confidence: 44%

“…The SC converters can also be designed in an efficient way thanks to an appropriate selection of passive and active components [4,16]. The selection of the parameters of the passive components for an SCVM is a complex process and and it should be done considering the switch technology, power and required efficiency, which is demonstrated in [16].The SCVM topology is suitable for the application of thyristors as active switches [3,4,15]. Furthermore, the ability of bidirectional voltage blocking makes it possible to further optimize the SCVMs, as presented in [4,26,27], where the reduction of the number of switches is demonstrated in the topology called RSCVM.…”

mentioning

confidence: 47%

“…The switched capacitors are previously charged by a parallel connection to the source. A general description of the operation of the SCVMs can be found in [4,15,16]. The current and voltage of the capacitors during charging are…”

Section: Concept Of Operation and Composition Of The Scvmmentioning

confidence: 99%

mentioning

confidence: 99%

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A family of high-power multilevel switched capacitor-based resonant DC-DC converters – operational parameters and novel concepts of topologies

Stala

Пирог

Penczek

et al. 2017

Bulletin of the Polish Academy of Sciences Technical Sciences

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Abstract. This paper presents the concept of topologies and investigation results of switched-capacitor voltage multipliers designed for application in high power systems. The analyzed family of multilevel converters includes established topologies as well as novel concepts. The application of thyristors as well as the invention of novel concepts of multiplier topologies and appropriate control make it possible to achieve high efficiency, high voltage gain, reliable and simple DC-DC converters for high power systems. Based on analytical models of the SCVMs, the paper presents a discussion of the selection of components and the efficiency of the converters as a function of converted power as well as the voltage range on the input and the output side. The results are supported by computer simulations and demonstrative experimental tests. The SC converters operate using the principle of charge pumps and usually contain a large number of switches. However, high efficiency can be achieved in the SC converters by the application of resonant operation [4,15]. The SC converters can also be designed in an efficient way thanks to an appropriate selection of passive and active components [4,16]. The selection of the parameters of the passive components for an SCVM is a complex process and and it should be done considering the switch technology, power and required efficiency, which is demonstrated in [16].The SCVM topology is suitable for the application of thyristors as active switches [3,4,15]. Furthermore, the ability of bidirectional voltage blocking makes it possible to further optimize the SCVMs, as presented in [4,26,27], where the reduction of the number of switches is demonstrated in the topology called RSCVM. The application of thyristors creates possibilities for DC-DC conversion in resonant mode topology at high power, voltages and currents, owing to extremely high parameters of the thyristors. The resonant-mode operation is advantageous, because it makes turning-off the switches possible and assures zero current switching (ZCS) [4]. This paper, in Section 2, presents an analysis of the thyristor-based SCVM related to feasibility of the converter for high power application (Fig. 1a). The analytical results reach 500 kilowatts power, which makes it possible to demonstrate, in figures, the efficiency, range of currents as well as the value of LC parameters. Next, in Section 3, the thyristor-based topologies suitable for high power operation are presented (Figs. 1b, 1c, 1d). The evolution of the SCVM, presented in [4] is also

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Section: Concept Of Operation and Composition Of The Scvmmentioning

confidence: 47%