A Comparative Study of Series and Cascaded Z-Source Matrix Converters

Karaman, Ekrem; Farasat, Mehdi; Trzynadlowski, A.M.

doi:10.1109/tie.2014.2301766

Cited by 81 publications

(41 citation statements)

References 16 publications

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“…These converters constitute an improvement over the cascaded Zsource matrix converter by reducing the voltage across the Zsource network's capacitor, limiting the inrush current at startup for series Z-source and widening the boost ratio for quasi Z-source and very high boost ratio for switched inductor Z-source matrix converter. The FFT analysis of these converters input/output currents can be carried out [21] , [22] , indicating a slight superiority of the switched inductor Z-source matrix converter over the quasi Z-source converter and the series Z-source matrix converter over the cascaded Z-source converter with respect to the quality of input currents.…”

Section: A Topology Different Configurationsmentioning

confidence: 99%

Z-Source Matrix Converter: An Overview

Ellabban

Abu‐Rub

Bayhan

2016

IEEE Trans. Power Electron.

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Conventional matrix converters (MCs) have limited voltage gain that is less than 0.866, whether for direct MC (DMC) or indirect MC (IMC). The Z-source matrix converters (ZSMC) overcome the voltage gain limitation of the traditional MC and achieve buck andboost operation with reduced switches count, therefore achieving low cost, high efficiency, and reliability, compared to the back-to-back converter. Furthermore, it will leads to more MC industrial applications. This paper presents an up to date comprehensive overview of the different Z-source matrix converter topologies and their configurations, circuit analysis, modulation schemes, and applications. This study offers a comprehensive and systematic reference for the future development of the Z-source matrix converters.Keywords: Z-source converter, Quasi-Z-source converter, Z-source indirect matrix converter, Z-source direct matrix converter.I. 0885-8993 (c) topology of the MC, they are called Z-Source Indirect Matrix Converter (ZSIMC) and Z-Source Direct Matrix Converter (ZSDMC). Therefore, it is possible to overcome the low voltage gain challenge of the traditional MC; in addition, the ZS/QZS network allows the short circuit, which makes the ZSMC commutation easier. As a result, the ZSMC provides a low-cost, reliable, and highly efficient structure for buck and boost ac/ac conversion. Moreover, there are two different configurations of the ZSIMC topology depending on the location of the ZS/QZS network. The ZS/QZS network can be located between the rectifier and inverter of indirect matrix converter at the intermediate dclink, the voltage gain is extended, but it is not all-silicon-solution and will cause larger size and heavier weight (it requires large inductors and capacitors in the dc-link) than the conventional IMC. The other option, where the ZS/QZS network is inserted between the input ac source and rectifier of the indirect matrix converter to achieve all-silicon solution. This configuration can achieve high voltage gain with a small ZS/QZS network, but it requires a large number of switches, so it is at the result of higher cost. This paper will present an updated overview of the different Zsource matrix converter topologies including the ZSIMC with its all-silicon and not all-silicon configurations and also the ZSDMC.

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Section: A Topology Different Configurationsmentioning

confidence: 99%

Z-Source Matrix Converter: An Overview

Ellabban

Abu‐Rub

Bayhan

2016

IEEE Trans. Power Electron.

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“…It is exactly that this limitation leads to lack of load driving ability when the driving system combined with USMC is overloading in the range of approximate rated speed. Nowadays, the method of improving voltage transfer ratio (VTR) can be divided into two categories: topology [6][7][8][9] and modulation [10][11][12][13][14][15].…”

Section: Introductionmentioning

confidence: 99%

“…They can improve the VTR to 1.0. References [7][8][9] increased the VTR from 0.866 to 4.33 theoretically by introducing a Z-source network to the USMC which contained two inductors and capacitors. These methods are introduced by adding energy storage elements to improve the amplitude of dc-link voltage, yet they lead to a large volume and a complicated topology.…”

Section: Introductionmentioning

confidence: 99%

Research on Linear Output Voltage Transfer Ratio for Ultrasparse Matrix Converter

Xia

Yan

et al. 2016

IEEE Trans. Power Electron.

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Many existing researches of ultra Sparse matrix converter (USMC) show that the maximum linear output voltage transfer ratio (MLO-VTR)is less than 0.866, however, this paper proves that, based on space vector modulation(SVM), MLO-VTR for USMC can break the ultimate value. Firstly, based on the condition that input power factor is 1, the maximum output voltage within one carrier period and the maximum linear output voltage are derived. Further the mathematical equations among MLO-VTR, the output/input frequency ratios and the output voltage initial phase is also derived. After that, by solving the operating limits of the mathematical relationship of the MLO-VTR, we can obtain the maximum value of MLO-VTR under different output/input frequency ratios, which can be more than 0.866. Finally, all of theoretical derivations are verified by experiments.

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“…This topology could provide all the desired characteristics that a common matrix converter would, except power flow bi-directionality. The Z-source network operates simultaneously as an energy reservoir and a filter to overcome the current and voltage ripple [7], as depicted in Figure 1. There is an alternative option of indirect energy conversion by employing IMC or the sparse matrix converter.…”

Section: Z-source and Voltage Transfer Ratiomentioning

confidence: 99%

“…The MC family is still categorized as a laboratory AC/DC driver with little reliable potential for industrial use [6,7] because of the control complexity [8], sensitivity in the face of abnormal input [9], limitation of the voltage transfer ratio up to 86.6% [10], and excess semiconductor switches [11]. These are the most critical obstacles to overcome, and, hence, solutions would be welcomed by manufacturers and industrial developers.…”

Section: Introductionmentioning

confidence: 99%

A Current Control Approach for an Abnormal Grid Supplied Ultra Sparse Z-Source Matrix Converter with a Particle Swarm Optimization Proportional-Integral Induction Motor Drive Controller

et al. 2016

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A rotational d-q current control scheme based on a Particle Swarm OptimizationProportional-Integral (PSO-PI) controller, is used to drive an induction motor (IM) through an Ultra Sparse Z-source Matrix Converter (USZSMC). To minimize the overall size of the system, the lowest feasible values of Z-source elements are calculated by considering the both timing and aspects of the circuit. A meta-heuristic method is integrated to the control system in order to find optimal coefficient values in a single multimodal problem. Henceforth, the effect of all coefficients in minimizing the total harmonic distortion (THD) and balancing the stator current are considered simultaneously. Through changing the reference point of magnitude or frequency, the modulation index can be automatically adjusted and respond to changes without heavy computational cost. The focus of this research is on a reliable and lightweight system with low computational resources. The proposed scheme is validated through both simulation and experimental results.

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A Comparative Study of Series and Cascaded Z-Source Matrix Converters

Cited by 81 publications

References 16 publications

Z-Source Matrix Converter: An Overview

Z-Source Matrix Converter: An Overview

Research on Linear Output Voltage Transfer Ratio for Ultrasparse Matrix Converter

A Current Control Approach for an Abnormal Grid Supplied Ultra Sparse Z-Source Matrix Converter with a Particle Swarm Optimization Proportional-Integral Induction Motor Drive Controller

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