Results 231 to 240 of about 2,556 (266)

Control for Fault Ride-Through Capability Augmentation

2014
This chapter presents the design and implementation of a new control scheme for reactive power compensation, voltage regulation and transient stability enhancement for wind turbines equipped with fixed-speed induction generators in large interconnected power systems.
Jahangir Hossain, Hemanshu Roy Pota
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Low voltage fault ride through control in MMC-HVDC

2017 IEEE 26th International Symposium on Industrial Electronics (ISIE), 2017
Modular multilevel converters (MMCs) are the latest converter topology for the high voltage high power applications like the high voltage dc (HVDC) transmission. This paper presents the response of an MMC-HVDC converter during grid faults. Recent grid code requirements specify reactive current injection during low voltage fault conditions and negative ...
Sanjay K. Chaudhary, Remus Teodorescu, Dimitrios Rizadis, Laszlo Mathe   +3 more
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A fault ride through strategy of multi-ports DC transformer

2020 5th International Conference on Automation, Control and Robotics Engineering (CACRE), 2020
DC transformer (DCT) is the main and key equipment of DC distribution network. Multi-ports DCT can connect multiple DC lines or networks at the same time, which has high power supply reliability and is suitable for interconnection equipment among different DC power grids.
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A Megawatt Converter with Ride-Through Fault Capability

IEEE Transactions on Industry Applications, 1975
Protecting thyristors by means of fuses in electro-chemical rectifiers where more than 100 devices are used in a single unit may cause considerable service interruption when fuses open during temporary faults. This paper considers the thyristor and fuse ratings in conjunction with gate suppression techniques to achieve a protective system which allows ...
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Unbalanced-Grid-Fault Ride-Through Control for a Wind Turbine Inverter

IEEE Transactions on Industry Applications, 2007
Large variable speed wind turbines with fully rated, direct-in-line converters are increasingly used as silicon cost continues to decline. While grid codes require wind turbines to ride-through grid faults, including unbalanced faults, voltage source inverters interfaced to the grid are inherently sensitive to any unbalance in the a.c. voltage.
Chong Ng, Li Ran, Jim Bumby
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Fault Ride Through for a DC ring bus microgrid

2016 International Conference on Energy Efficient Technologies for Sustainability (ICEETS), 2016
DC microgrid is gaining more prominence due to the development of renewable resources that generate DC output and also due to the increasing use of DC in end-user equipments. Also with DC system, connection of backup energy storage and small size generation is easier to realize. For any system, disconnecting a part of the system during temporary faults
null Vishnupriya S, P Kanakasabapathy
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Fault Current Suppression for the Fault Ride-Through of Triple-Active-Bridge Converters

IEEE Transactions on Industrial Electronics
The fault ride-through (FRT) capability is an important ancillary service for power converters in dc power distribution systems. Despite extensive research, the triple active bridge converter (TABC) has been perceived as lacking FRT capability due to the requirement of blocking all power switches in the event of a dc short-circuit fault at the dc ...
Hanwen Zhang 0005, Haoyuan Yu, Qi Zhang 0065, Yanbo Wang 0002, Zhe Chen 0007   +4 more
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Assessment of Fault Ride Through Requirement for Distributed Generators

3rd Renewable Power Generation Conference (RPG 2014), 2014
One of the biggest changes the power industry will encounter over the next twenty years will be the significant increase of embedded generation connecting directly to the distribution system. Amongst various generator connection requirements required to ensure network resilience, Fault Ride Through requirement may be one of the key areas which requires
G.R. Jenkins, V. Hamidi
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Analysis of SFCL for Improving Fault Ride Through of DFIG

2020 IEEE International Conference on Applied Superconductivity and Electromagnetic Devices (ASEMD), 2020
With the wide use of the wind power energy, Doubly Fed Induction Generator (DFIG) plays an important role in the power grid. Because the stator side of DFIG is connected with the grid, the fault ride through (FRT) is widely followed by people. To reduce the cost of the fault current limiter (FCL) economically, adopting a resistive-type superconducting ...
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Fault ride-through of doubly-fed induction generators

2012 International Conference on Power, Signals, Controls and Computation, 2012
The aim of this paper is to explore the various dynamic controllers to enhance the fault ride-through (FRT) of doubly-fed induction generators (DFIGs). A wind farm of total capacity 9 MW is considered for the study. The flexible AC transmission system (FACTS) controllers like Static Synchronous Compensators (STATCOM) and Unified Power Flow Controllers (
Kazi Ahsanullah, Jayashri Ravishankar
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