Results 31 to 40 of about 378,481 (208)
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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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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State Feedback Reshaping Control of Voltage Source Converter
IEEE Transactions on Power Electronics, 2022 Admittance reshaping is a widely used strategy to address the converters low-frequency stability issues in weak grid, caused by the PLL and its interaction with the dc and ac voltage controls. However, the asymmetric control of the d-and q-axis current references and the coupling between the converter ac and dc sides restricts the damping capability of
Federico Cecati +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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Voltage Ripple Reduction in Voltage Loop of Voltage Source Converter
International Journal of Power Electronics and Drive Systems (IJPEDS), 2017 In order to achieve a good dynamical response of a full-bridge AC-DC voltage source converters (VSC). The bandwidth of PI controller must be relatively wide. This leads to the voltage ripple produced in the control signal, as known that its ripple frequency has twice of the line frequency and cause the 3rd harmonic of an input current. A Ripple Voltage
Jedsada Jaroenkiattrai, Viboon Chunkag
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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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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 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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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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Stabilization of Electrical Parameters of Machine-Converter Voltage Source [PDF]
EAI Endorsed Transactions on Energy Web, 2018 The paper is devoted to development of Machine-Converter Source (MCS), which forms the output voltage waveform of electric generator as sum of EMFs with near frequencies. As electric modulation generator is used a synchronous generator and asynchronous exciter that have both common driving shaft and common housing.
Yury N. Dementyev +4 more
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