Hybrid Modulation for Modular Voltage Source Inverters with Coupled Reactors

Szwarc, Krzysztof; Szczepankowski, Pawel; Nieznański, J.; Swinarski, Cezary; Усольцев, А. А.; Strzelecki, Ryszard

doi:10.3390/en13174450

Cited by 1 publication

(3 citation statements)

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“…Both solutions, 6-pulse and 12-pulse, require an appropriately coupled reactors arrangement [25]. The proposed topology, shown in Figure 6a, contains 36 bidirectional switches S A1 -S C12 , which are elements of four 4 matrix converters CMC 1 -CMC 4 and 3 Phase Shifters (PS) PS 1 , PS 2 and PS 3 respectively.…”

Section: Coupled Reactorsmentioning

confidence: 99%

“…Thus theoretically the total number of switch states is 3 12 for the proposed converter topology. Due to the concept of magnetically coupled using the coupled reactors presented in [25] only the rotating vectors are allowed. The stationary and the zero vectors from the conventional matrix converter space-vector frame are not suitable for that kind of the reactors' circuit.…”

Section: The Control Of Output Voltage Amplitude Using the Low Switch...mentioning

confidence: 99%

“…The research of this method in relation to the MMCCR system, including the hybrid method [25], allowing to minimize the frequency of connections in the converter at fixed points will be presented in the next paper. This study article does not in any way pretend to present the full spectrum of problems associated with MMCCR systems.…”

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confidence: 99%

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The Conceptual Research over Low-Switching Modulation Strategy for Matrix Converters with the Coupled Reactors

et al. 2021

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In this paper, different Pulse Width Modulation (PWM) strategies for operating with a low-switching frequency, a topology that combines Conventional Matrix Converters (CMCs), and Coupled Reactors (CRs) are presented and discussed. The principles of the proposed strategies are first discussed by a conceptual analysis and later validated by simulation. The paper shows how the combination of CMCs and CRs could be of special interest for sharing the current among these converters’ modules, being possible to scale this solution to be a modular system. Therefore, the use of coupled reactors allows one to implement phase shifters that give the solution the ability to generate a stair-case load voltage with the desired power quality even the matrix converters are operated with a low-switching frequency close to the grid frequency. The papers also address how the volume and weight of the coupled reactors decrease with the growth of the fundamental output frequency, making this solution especially appropriate for high power applications that are supplied at high AC frequencies (for example, in airport terminals, where a supply of 400 Hz is required).

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Section: Coupled Reactorsmentioning

confidence: 99%

Section: The Control Of Output Voltage Amplitude Using the Low Switch...mentioning

confidence: 99%