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Fault Current Hierarchical Limitation Strategy for Fault Ride-Through Scheme of Microgrid
IEEE Transactions on Smart Grid, 2019With the growing penetration of grid-connected microgrids (MGs), utility grid (UG) faces the challenge of high-level fault current during fault ride-through (FRT) of MGs. To tackle this challenge, a fault current hierarchical limitation (FCHL) strategy is proposed, which consists of four levels: 1) fault current primary limitation control (FCPLC) is ...
Xubin Liu +7 more
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Fault-Ride-Through Capability of Photovoltaic Inverter
201025th European Photovoltaic Solar Energy Conference and Exhibition / 5th World Conference on Photovoltaic Energy Conversion, 6-10 September 2010, Valencia, Spain; 4992 ...
Tounsi, B., Duval, J., Thibert, M.
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Fault ride-through enhancement of wind turbines in distribution networks
Journal of Ambient Intelligence and Humanized Computing, 2012This paper proposes a fuzzy controller for improving fault ride-through (FRT) capability of doubly fed induction generator based wind turbines (WTs). The controller is designed in order to compensate the voltage at the point of common coupling by regulating the reactive and active power generated by WTs simultaneously.
Geev Mokryani +2 more
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An enhanced MMC topology with DC fault ride-through capability
IECON 2013 - 39th Annual Conference of the IEEE Industrial Electronics Society, 2013High-voltage direct current system using modular multilevel converter (MMC-HVDC) is a potential candidate for grid integration of renewable energy over long distances. The dc-link fault is an issue MMC-HVDC must deal with. This paper proposed an enhanced MMC topology with dc fault ride-through capability.
Xiaoqian Li +4 more
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Low voltage fault ride through control in MMC-HVDC
2017 IEEE 26th International Symposium on Industrial Electronics (ISIE), 2017Modular 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 +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), 2020DC 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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Control for Fault Ride-Through Capability Augmentation
2014This 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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Unbalanced-Grid-Fault Ride-Through Control for a Wind Turbine Inverter
IEEE Transactions on Industry Applications, 2007Large 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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Assessment of Fault Ride Through Requirement for Distributed Generators
3rd Renewable Power Generation Conference (RPG 2014), 2014One 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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A Megawatt Converter with Ride-Through Fault Capability
IEEE Transactions on Industry Applications, 1975Protecting 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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