Results 291 to 300 of about 160,250 (344)

Current-fed Z-source matrix converter

2009 International Conference on Applied Superconductivity and Electromagnetic Devices, 2009
This paper proposes a current-fed Z-source matrix converter topology. It combines the current-fed Z-source ac-ac converter with traditional current-fed matrix converter, and can overcome the conceptual and theoretical barriers and limitations of the traditional matrix converter. It can output lower voltage and has higher reliability.
Xupeng Fang, Zhiqiao Chen
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Switched Z-source DC-DC converter

IECON 2017 - 43rd Annual Conference of the IEEE Industrial Electronics Society, 2017
In this paper, a switched Z-source dc-dc converter (SZSC) is proposed for the conversion from a low voltage to a higher one in renewable energy systems. The voltage gain is increased by adding another one switch and diode to the output terminal of the traditional Z-source dc-dc converter.
Jun Zeng, Jialei Wu, Zehui Yu, Junfeng Liu   +3 more
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Photovoltaic lighting system based on Z-source/quasi-Z-source converter topology

2011 Twenty-Sixth Annual IEEE Applied Power Electronics Conference and Exposition (APEC), 2011
This paper proposes a photovoltaic lighting system based on a power converter that combines the Z-source and the quasi-Z-source topologies. When there is enough sunlight the power converter operates similarly as the quasi-Z-source topology and thus the photovoltaic energy is stored in a battery bank.
L. V. Hartmann, E. C. Santos, A. M. N. Lima, A. C. Oliveira, M. B. R. Correa   +4 more
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A Family of Z-source and Quasi-Z-source DC-DC Converters

2009 Twenty-Fourth Annual IEEE Applied Power Electronics Conference and Exposition, 2009
This paper presents a family of four-quadrant dc-dc converters with minimal number of switches and passive devices. These converters employ a Z-source or a quasi-Z-source network with two active switches to provide four quadrant operation which means bipolar output voltage and bidirectional current operation.
Dong Cao, Fang Z. Peng
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Comparative Evaluation of Three Z-Source/Quasi-Z-Source Indirect Matrix Converters

IEEE Transactions on Industrial Electronics, 2015
Conventional matrix converters (MCs) have limited voltage gain that is less than 0.866, whether for direct MC (DMC) or indirect MC (IMC). Existing Z-source (ZS)/discontinuous quasi-Z-source (qZS) DMCs and ZS IMCs achieved larger than 0.866 voltage gain; however, the former inherited the complex commutation from DMC, and the latter involved a ZS network
Shuo Liu, Baoming Ge, Xinjian Jiang, Haitham Abu-Rub, Fang Zheng Peng   +4 more
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A Family of Z-Source Matrix Converters

IEEE Transactions on Industrial Electronics, 2012
This paper extends the Z-source concept to matrix converters and explores a family of Z-source matrix converters. Their principles and characteristics are analyzed, and a simplified voltage-fed Z-source matrix converter is used as an example to demonstrate its operation, voltage gain versus modulation index, PWM method, boost control, and ...
Baoming Ge, Qin Lei, Wei Qian, Fang Zheng Peng   +3 more
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Simplified quasi‐Z source indirect matrix converter

International Journal of Circuit Theory and Applications, 2014
SummaryConventional matrix converters have a limited voltage gain less than 0.866 and also require many power switches and additional input filter that ensures a low input current harmonics to the grid. Quasi‐Z source (qZS) indirect matrix converter can provide high voltage gain and ensure a sinusoidal input current without additional input filter ...
Shuo Liu, Baoming Ge, Xinjian Jiang, Haitham Abu‐Rub, Fang Zheng Peng   +4 more
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Hybrid Z-Source Boost DC–DC Converters

IEEE Transactions on Industrial Electronics, 2017
This paper presents a new family of hybrid Z-source boost dc–dc converters intended for photovoltaic applications, where the high step-up dc–dc converters are demanded to boost the low-source voltages to a predefined grid voltage. Because the boost capabilities of the traditional Z-source networks are limited, the proposed converters are composed of ...
Hanyun Shen, Bo Zhang, Dongyuan Qiu
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Matrix converter with a series Z-source

IECON 2012 - 38th Annual Conference on IEEE Industrial Electronics Society, 2012
Series Z-source network, an expansion of the popular concept of Z-source dc link, was originally proposed for boosting the output voltage of power electronic inverters. In this paper, that idea is extended onto a three-phase indirect matrix converter.
Ekrem Karaman, Mehdi Farasat, Andrzej M. Trzynadlowski   +2 more
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Generalized single phase Z-source matrix converter

2011 IEEE Electrical Power and Energy Conference, 2011
In this paper a novel topology for single phase Z-source matrix converter is presented. Introduced structure has ability of direct ac-ac converting without frequency restriction. This means presented structure can generate wide range of frequency without considering input frequency.
S. H. Hosseini, J. Nabati, A. Mirlou
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