Results 251 to 260 of about 514,782 (282)

Differential Wye Modular Multilevel AC Converter (DW-M2AC) for Direct AC/AC Power Conversion

2022
Direct AC/AC MMCs are used in a wide variety of power system applications such as interconnecting asynchronous grids with different frequencies, renewable energy integrations and medium voltage variable frequency motor drives. Due to the advantages such as lower component count and lesser control complexity led by a low number of control states ...
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A novel AC-AC series voltage compensator without large energy storage elements and using partial power conversion

2011 Twenty-Sixth Annual IEEE Applied Power Electronics Conference and Exposition (APEC), 2011
Voltage faults and harmonics are some of the main problems in the modern electric power distribution system. Traditional solutions are proved to have several drawbacks. In this paper, a novel AC-AC series voltage compensator without large energy storage elements is proposed to deal with the above voltage problems in the power system, which only ...
Chushan Li, Yan Deng, Yi Zhao, Wuhua Li, Xiangning He   +4 more
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AC/AC power conversion based on matrix converter topology with unidirectional switches

IEEE Transactions on Industry Applications, 1998
In this paper, a new circuit for AC to AC power conversion is presented. The circuit is derived from the matrix converter topology, which has the capability of direct AC to AC power conversion without any DC link reactive component and input inductance except a small snubber.
null Siyoung Kim, Seung-Ki Sul, T.A. Lipo   +2 more
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Virtual Quadrature Source-Based Sinusoidal Modulation Applied to High-Frequency Link Converter Enabling Arbitrary Direct AC-AC Power Conversion

IEEE Transactions on Power Electronics, 2014
Most mature converters topologies for ac power conversion are inverter types, which require relatively short lifetime electrolytic capacitors. The cost, size, and weight of the converter are thus limited. While alternative solutions based on the single-phase direct ac-ac topologies are subject to zero crossing constraints, which prevent them from ...
Chushan Li, Yan Deng, Zibo Lv, Wuhua Li, Xiangning He, Yousheng Wang   +5 more
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A Partial Power Processing MMC Topology for Direct AC/AC Power Conversion

2021 IEEE 22nd Workshop on Control and Modelling of Power Electronics (COMPEL), 2021
Anjana Wijesekera, Yuan Li, Gregory Kish
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Non-isolated Buck-Boost Hybrid Converter with AC-AC/DC Power Conversion for Simultaneous Wired and Wireless Power Transfer

2022 IEEE Applied Power Electronics Conference and Exposition (APEC), 2022
Jiayang Wu, Albert T. L. Lee, Siew-Chong Tan, S. Y. Ron Hui   +3 more
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AC Voltage Synthesis Using Arbitrary Two-Phase Voltages: Frequency, Phase, and Amplitude Modulation for Direct AC–AC Power Conversion

IEEE Transactions on Power Electronics, 2022
Bingda Zhu, Chuang Liu, Dongbo Guo, Lingguo Kong, Guowei Cai, Heyang Sun, Xinming Shao   +6 more
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Flexible self-charging power sources

Nature Reviews Materials, 2022
Ruiyuan Liu, Zhong Lin Wang, Kenjiro Fukuda   +2 more
exaly  

Outdoor air pollution and cancer: An overview of the current evidence and public health recommendations

Ca-A Cancer Journal for Clinicians, 2020
Michelle C Turner, Zorana Jovanovic Andersen, Andrea A Baccarelli   +2 more
exaly  

Pseudocapacitance: From Fundamental Understanding to High Power Energy Storage Materials

Chemical Reviews, 2020
Simon Fleischmann, James B Mitchell, Ruocun Wang   +2 more
exaly