Results 41 to 50 of about 381,596 (303)
Evaluation of linear stability operating boundary for voltage source converter under grid faults
Energy Reports, 2023 Voltage source converters have been used in high voltage direction current systems, which provides various advantages such as reduction in installation cost and space, easy connectivity with renewable energy sources and enhanced power quality. One of the
Yuqiang Yang +4 more
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Integration of Voltage Source Converters in Steady-State RMS Short-Circuit Analysis
Energies, 2021 Voltage source converters (VSCs) are self-commutated converters able to generate AC voltages with or without the support of an AC connecting grid. VSCs allow fast control of active and reactive powers in an independent way.
Carlos Coelho Teixeira, Helder Leite
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Isomorphic Relationships Between Voltage-Source and Current-Source Converters
IEEE transactions on power electronics, 2019 Graph isomorphism phenomenon has been identified since the 1930s, which was first addressed in the graph-theoretical field and was thoroughly studied as a critical topic of computer science.
Yuzhuo Li, L. Ding, Y. Li
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IEEE Access, 2019 In this paper, switched Z-source/quasi-Z-source dc-dc converters (SZSC/SQZSCs) are proposed for the photovoltaic (PV) grid-connected power system, where the high step-up dc-dc converters are required to boost the low voltage to high voltage.
Junfeng Liu +3 more
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IEEE Open Journal of Industry ApplicationsThis article proposes a switched-coupled-inductor impedance source network integrating capacitor-winding-diode technology. Next, voltage-boost switched-coupled-inductor dc–dc converters based on the proposed impedance source network are deduced ...
Yuliang Ji, Lina Geng
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Voltage Waveform and Voltage Boost Ratio of Quasi Z Source DC Converters
IEEE AccessIn order to optimize the voltage waveforms of quasi Z source converters and investigate their effects on voltage boost ratio, the LTspice software is used to conduct a simulation study on quasi Z source converters after theoretical analysis.
Sheng Qu
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IEEE Transactions on Power Delivery, 2019 Medium power distributed energy resources (DERs) are commonly connected to medium voltage distribution systems via voltage source converters (VSCs). Several guidelines and standards have been developed to establish the needed criteria and requirements ...
S. F. Zarei +3 more
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Impacts on Power Factor of AC Voltage Controllers Under Non-Sinusoidal Conditions [PDF]
Mehran University Research Journal of Engineering and Technology, 2012 AC-AC conversion is obtained with the help of Cyclo-converters, DC Link converters and AC Voltage Controllers. AC voltage controllers are also referred to as voltage regulators.
Mukhtiar Ahmed Mahar +2 more
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International Journal of Electrical Power & Energy SystemsIslanded grids play a crucial role in AC/DC distribution systems. The adoption of transformerless voltage-source converters as the primary power source is an important development direction for AC/DC distribution systems.
Yuze Li +4 more
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Pediatric Blood &Cancer, EarlyView.ABSTRACT Background Leukemia is the most common childhood cancer in Mexico, and acute lymphoblastic leukemia (ALL) is the most frequent subtype. Exposure to high concentrations of benzene has been associated with ALL incidence, particularly in urban areas. This study evaluated the relationship between distance to benzene emission sources and the number
Orlando Rivera Zurita +5 more
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