Results 51 to 60 of about 11,006 (219)

Chance-Constrained AC Optimal Power Flow Integrating HVDC Lines and Controllability

open access: yes, 2019
The integration of large-scale renewable generation has major implications on the operation of power systems, two of which we address in this work.
Barre, Adelie   +4 more
core   +1 more source

Novel protection scheme for high-voltage direct-current transmission lines based on one-terminal transient AC voltage

open access: yesThe Journal of Engineering, 2019
This paper considers the distributed capacitance of transmission lines to research the protection of high-voltage direct-current (HVDC) transmission line.
Yunke Zhang   +5 more
doaj   +1 more source

Distributed Secondary Frequency Control through MTDC Transmission Systems

open access: yes, 2015
In this paper, we present distributed controllers for sharing primary and secondary frequency control reserves for asynchronous AC transmission systems, which are connected through a multi-terminal HVDC grid.
Andersson, Göran   +4 more
core   +2 more sources

Design and implementation of 30kW 200/900V LCL modular multilevel based DC/DC converter for high power applications [PDF]

open access: yes, 2016
This paper presents the design, development and testing of a 30kW, 200V/900V modular multilevel converter (MMC) based DC/DC converter prototype. An internal LCL circuit is used to provide voltage stepping and fault tolerance property.
Aboushady, A.   +3 more
core   +2 more sources

Nonlinear Control Design of Three-Level Neutral-Point-Clamped-Based High-Voltage Direct Current Systems for Enhanced Availability during AC Faults with Semi-Experimental Validation

open access: yesEngineering Proceedings, 2023
This research paper addresses the issue of enhancing the operational availability of NPC three-level converter-based high-voltage direct current (HVDC) transport systems during alternating current (AC) grid fault conditions.
Ilyass El Myasse   +3 more
doaj   +1 more source

Mesh‐Based Charge Simulation Method and Its Applications to Electrostatic Electric Field Computation

open access: yesHigh Voltage, EarlyView.
ABSTRACT The charge simulation method (CSM) is a well‐established numerical technique employed in electrostatic field calculations, primarily due to its simplicity and computational efficiency. However, conventional CSM face challenges when applied to complex geometries, as they necessitate meticulous manual placement of simulation charges and matching
Tahan Wang   +5 more
wiley   +1 more source

Blitzeinschlagsanalyse für rückwärtige Überschläge einer Hybridleitung [PDF]

open access: yes, 2015
A new method to transfer energy over short and long distances is to use hybrid lines. In this paper a lightning surge analysis for backflashovers on overhead transmission lines with one DC and three AC systems on the same tower is considered ...
Kizilcay, Mustafa   +2 more
core  

What to expect from a greater geographic dispersion of wind farms? - A risk portfolio approach [PDF]

open access: yes, 2007
The UK, like many other industrialised countries, is committed to reducing greenhouse gas emissions under the Kyoto Protocol. To achieve this goal the UK is increasingly turning towards wind power as a source of emissions free energy.
Ben Drake   +9 more
core   +1 more source

HVDC Transmission Line Protection Based on Transient Power

open access: yesProcedia Technology, 2016
AbstractThis paper presents a new protection method for High Voltage Direct Current (HVDC) system based on transient power. Behavior of the HVDC system during fault is studied. Variation of transient power and the relation between various parameters of the line are analyzed during each fault.
Tom, Sherin, Thomas, Jaimol
openaire   +1 more source

Multiterminal High‐Voltage Direct Current Projects: A Comprehensive Assessment and Future Prospects

open access: yesHigh Voltage, EarlyView.
ABSTRACT Multiterminal high‐voltage direct current (MT‐HVDC) systems are an important part of modern power systems, addressing the need for bulk power delivery and efficient renewable energy integration. This paper provides a comprehensive overview of recent advances in MT‐HVDC technology, including launched projects and ongoing initiatives.
Mohammad Hossein Mousavi   +3 more
wiley   +1 more source

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