A Switched-Capacitor Three-Phase AC–AC Converter

Lazzarin, Telles Brunelli; Andersen, Romero Leandro; Barbi, I.

doi:10.1109/tie.2014.2336625

Cited by 63 publications

(32 citation statements)

References 26 publications

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“…Furthermore, the proposed converter also presents split-phase characteristics at the output stage (voltages under C 2 and C 3 ), which can expand the range of potential applications for the proposed converter. The main aim behind this topology is to boost the VSI output voltage using an ac-ac SCC [23], [24] topology instead of a transformer. The only magnetic device of the proposed topology is the inductor on the filter stage.…”

Section: Proposed Integration Between Inverter and Switched-capacmentioning

confidence: 99%

“…This converter naturally equalizes the capacitor voltages of C 2 and C 3 if these capacitances and switching frequencies are properly designed, as demonstrated in [23]. The resistance, R on , in Figure 1(a) represents the equivalent series resistance of the four-quadrant switch, obtained from the manufacturer datasheet.…”

Section: Switched-capacitor Convertermentioning

confidence: 99%

“…However, a higher gain can be obtained if more cells are added in series, as demonstrated in [23] and [28].…”

Section: Switched-capacitor Convertermentioning

confidence: 99%

“…R eq is the equivalent resistance seen from the low voltage side. The conduction losses of the switched capacitor cell can be designed by a resistance, as discussed in [23], [28] and [29]. This resistance is called of series resistance (R s ), and is given by:…”

Section: Switched-capacitor Convertermentioning

confidence: 99%

“…Thus, in order to design a converter to operate in the PC mode, the designer should respect the limits shown in Figure 5(b) [23]. The first limit is given by:…”

Section: Switched-capacitor Convertermentioning

confidence: 99%

See 4 more Smart Citations

Transformerless Step-Up Inverter Based On Switched-Capacitor Converter Technology

Lazzarin¹,

Pont²,

Waltrich³

2017

Eletrônica de Potência

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-In this paper the integration between a voltage source inverter (VSI) and a switched capacitor converter (SCC) is proposed to generate a sinusoidal waveform with a double peak voltage value at the converter output terminal, without the use of a transformer or a dc-dc boost converter. The novel structure (VSI-SCC) is designed as a transformerless step-up inverter with linear gain. VSI and SCC models are individually characterized to integrate both structures in only one model. To validate the theoretical analysis a prototype was designed for a power of 1 kW, considering a dc input voltage of 200 V and an ac output voltage of 220 V (rms). In this prototype the VSI converter supplies 110 V (rms) to the SCC converter, and this converter step-up it to 220 V (rms). Furthermore, open and closed-loop control were also tested in the prototype reaching a maximum efficiency of 90%.

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Section: Proposed Integration Between Inverter and Switched-capacmentioning

confidence: 99%

Section: Switched-capacitor Convertermentioning

confidence: 99%

“…However, a higher gain can be obtained if more cells are added in series, as demonstrated in [23] and [28].…”

Section: Switched-capacitor Convertermentioning

confidence: 99%

Section: Switched-capacitor Convertermentioning

confidence: 99%

“…Thus, in order to design a converter to operate in the PC mode, the designer should respect the limits shown in Figure 5(b) [23]. The first limit is given by:…”

Section: Switched-capacitor Convertermentioning

confidence: 99%

See 3 more Smart Citations

Transformerless Step-Up Inverter Based On Switched-Capacitor Converter Technology

Lazzarin¹,

Pont²,

Waltrich³

2017

Eletrônica de Potência

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Matrix converters for electric power conversion: Review of topologies and basic control techniques

Alammari

Aleem

Iqbal

et al. 2019

Int Trans Electr Energ Syst

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Summary A matrix converter (MC) is a topology for ac‐ac power conversion that has been widely investigated and compared with conventional ac‐dc‐ac topologies because of its attractive features. The MC is formed of controlled active devices and does not include any sizeable passive components. The converter can be used to directly control single/three/multiphase loads. MCs are highly effective in controlling the power factor and providing sinusoidal input and output currents. This paper provides a comprehensive state of the art review of the MC and discusses the main topology variations including single‐phase conventional and isolated MCs, three‐phase direct and indirect MCs, impedance source (Z‐source) MCs, multiphase MCs, and multilevel MCs (MMCs). The aim of this research article is to provide a one‐stop information on single/three/multiphase matrix, Z‐source matrix, and multilevel MCs for potential readers, researchers, and practicing engineers.

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Improved “K” type seven‐level switched capacitor inverter topology with Self‐voltage balancing

Ali

Sandeep

Almakhles

et al. 2020

Circuit Theory & Apps

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This paper proposes an improved "K" type seven-level switched capacitor inverter topology. The proposed topology consists of eight active switches, one floating capacitor, and two dc-link capacitors. The floating capacitors are charged and discharged in each half-cycle to maintain the capacitor voltage with the same value of the input voltage. The floating capacitor voltage is selfbalanced, and the output voltage is 1.5 times higher than the input voltage. To prove the superiority of the proposed topology, it is compared with the existing seven-level inverters in terms of maximum voltage stress on the switch and required the number of power components. The simulation and experimental validation are carried out for 1.6 kW, 50 Hz using a laboratory-based setup with a switching frequency of 5 kHz. The results are discussed highlighting the performance of the proposed topology for the dynamic load variations at different modulation indices. Both simulation results and experimental results have good agreement in terms of voltage balancing of flying capacitor. K E Y W O R D S multilevel inverter, voltage boosting, capacitor balancing and ANPC

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A Switched-Capacitor Three-Phase AC–AC Converter

Cited by 63 publications

References 26 publications

Transformerless Step-Up Inverter Based On Switched-Capacitor Converter Technology

Transformerless Step-Up Inverter Based On Switched-Capacitor Converter Technology

Matrix converters for electric power conversion: Review of topologies and basic control techniques

Improved “K” type seven‐level switched capacitor inverter topology with Self‐voltage balancing

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