Results 81 to 90 of about 18,616 (261)
Micro Partial Discharge Characteristics of SF6 Under DC Voltage
High Voltage, EarlyView.ABSTRACT In gas‐insulated high‐voltage direct current (HVDC) devices, micro partial discharges (PD) caused by micro‐protrusions or surface roughness on conductors or enclosures may not cause immediate insulation system failure due to their weak discharge intensity.
Geng Chen +4 more
wiley +1 more source
EnergiesThe characteristics of the dynamic reactive power demand of a hybrid multi-infeed HVDC transmission system during the post-fault recovery period are analyzed and a coordinated control strategy to improve the fault recovery characteristics of the hybrid ...
Bingjie Jin +7 more
doaj +1 more source
Dynamic analysis of voltage angle droop controlled HVDC systems in curative congestion management scenarios [PDF]
EPJ Web of Conferences, 2019 The integration of the voltage-source converter based high voltage direct current (VSC-HVDC) system makes the set-point of its active power adaptive to the changes in the power flow, and contributes to the curative congestion management.
Zhou Yang, Dalhues Stefan, Häger Ulf
doaj +1 more source
Optimal Control Design for Multiterminal HVDC [PDF]
, 2013 This thesis proposes an optimal-control based design for distributed frequency control in multi-terminal high voltage direct current (MTDC) systems.
de Courreges d'Ustou, Benoit
core
Test system requirements for modelling future power systems [PDF]
, 2010 This paper discusses the need for new test system models to be developed and made available to researchers. A number of features of such test systems are proposed.
Bell, K.R.W., Tleis, A.N.D.
core +1 more source
Simulation‐Based Material Design for HVDC Cable Accessories
High Voltage, EarlyView.ABSTRACT The worldwide increasing demand for electricity, coupled with the need for more reliable infrastructures and more interconnected networks, has put forward high voltage direct current (HVDC) technologies for energy transmissions. Questions still arise as regards synthetic insulation for cable systems and accessories, as it remains one of the ...
Thi Thu Nga Vu +2 more
wiley +1 more source
Multi-pole voltage source converter HVDC transmission systems [PDF]
, 2016 This study connects several modular multilevel converters to form multi-pole voltage source converter highvoltage dc (VSC-HVDC) links which are suited for bulk power evacuation, with increased resiliency to ac and dc network faults.
Ased, Grain Philip, Williams, Barry W.
core +1 more source
IET Power Electronics, EarlyView.Some of the topologies with a fewer number of power switches are reviewed and scrutinized. An extensive analysis of the topologies, control strategy and applications are presented here, suggesting suitable multilevel inverter solutions to the known industrial application or new research.
Anurag Choudhary +5 more
wiley +1 more source
Minimum Frequency and Voltage Stability Constrained Unit Commitment for AC/DC Transmission Systems
Applied Sciences, 2019 An increased use of the high-voltage direct current (HVDC) technologies can have important effects on frequency performance and voltage stability of the receiving-end grid during normal operation as well as during blocking failure.
Ningyu Zhang, Qian Zhou, Haoming Hu
doaj +1 more source
Impedance-compensated grid synchronisation for extending the stability range of weak grids with voltage source converters [PDF]
, 2016 This paper demonstrates how the range of stable power transfer in weak grids with voltage source converters (VSCs) can be extended by modifying the grid synchronisation mechanism of a conventional synchronous reference frame phase locked loop (PLL).
D'Arco, Salvatore +3 more
core +2 more sources