Results 61 to 70 of about 11,960 (229)

Blocking Converter Criteria Considering Protection Coordination Strategies of VSC‐MTDC

IET Energy Systems Integration, Volume 7, Issue 1, January/December 2025.
ABSTRACT Multiterminal high‐voltage direct current (MTDC) systems are anticipated to enable the massive integration of renewable energies into modern grids. However, the protection of MTDC systems is a major challenge for their application in connection with offshore wind farms (OWF).
Jalal Sahebkar Farkhani, Jonathan Cervantes Gomez, Peter Jan Randewijk, Claus Leth Bak, Zhe Chen   +4 more
wiley   +1 more source

Receiving-end AC fault ride-through method of hybrid HVDC transmission based on adaptive DC voltage reduction

International Journal of Electrical Power & Energy Systems
The hybrid high-voltage direct current (HVdc) transmission that combines line-commutated converters (LCCs) at the sending end and modular multilevel converters (MMCs) at the receiving end is a promising choice for integrating bulk renewable power ...
Kailun Wang, Qiang Song, Qianhao Sun
doaj   +1 more source

Harmonic suppression and fault ride‐through method of diode‐rectifier‐based hybrid high‐voltage direct current system for offshore wind farms integration

IET Generation, Transmission & Distribution, 2023
The diode‐rectifier (DR)‐based high‐voltage direct current (HVDC) transmission is regarded as a low‐cost alternative to the HVDC transmission for offshore wind farms (OWFs) integration.
Zixi Fang, Renxin Yang, Xu Cai, Xinchi Wei, Kunpeng Zha, Haotian Yu   +5 more
doaj   +1 more source

Coordination between Fault-Ride-Through Capability and Overcurrent Protection of DFIG Generatorsfor Wind Farms [PDF]

, 2009
Due to the increasing penetration of wind farms in power systems, stability issues arise strongly for power system operation. Doubly-Fed Induction Generators (DFIG) are charac-terized with some unique features during normal/abnormal op-erating conditions
Abdel-Rahman, Mansour H., Bak-Jensen, Birgitte, Kawady, Tamer A.   +2 more
core   +1 more source

Impacts of grid‐forming inverters on distance protection

IET Generation, Transmission &Distribution, Volume 19, Issue 1, January/December 2025.
This paper investigates the impacts of grid‐forming (GFM) inverters on distance protection, with the main objective of providing an improved understanding of the topic. Important interoperability issues are highlighted with simulation results and elaborated upon based on the theory behind the distance relay model and the behaviours of GFM inverters ...
Henrik Johansson, Qianli Xing, Nathaniel Taylor, Xiongfei Wang   +3 more
wiley   +1 more source

Improved LVRT Grid Code under Islanding Condition [PDF]

, 2015
The grid code Low Voltage Ride Through (LVRT) requires Renewable Energy Sources (RESs) to remain connected to the grid following the voltage sags resulting from disturbances. The LVRT pattern is based on voltage sag magnitude and its duration at Point of
Bak, Claus Leth, Hoseinzadeh, Bakhtyar, Silva, Filipe Miguel Faria da   +2 more
core   +2 more sources

MMC‐HVDC Control Parameter Selection for Grid Code Compliance and Improved System Protection Performance Under AC‐Side Faults

IET Generation, Transmission &Distribution, Volume 19, Issue 1, January/December 2025.
This paper explores the control parameter selection in modular multilevel converter based high voltage direct current systems to enhance distance protection performance while maintaining stability and grid code compliance under varying grid conditions.
Xiaoxiao Liu, Paul Judge, Geraint Chaffey, Willem Leterme, Dirk Van Hertem   +4 more
wiley   +1 more source

Research on the Automatically Independent Controlling Algorithm of the Grid-Connected PV Inverter Jointly Considering Dynamic Load Features and Active LVRT Capability

IEEE Access, 2023
Due to environmental and energy policies in recent years, some countries will install many PV generations into power systems in the future. Under this condition, it is worrisome that the disconnection of the PV occurs because of a voltage drop triggered ...
Wang Jinpeng, Zhang Bo, Yao Qinxue, Jeremy-Gillbanks, Zhao Xin   +4 more
doaj   +1 more source

A Novel Adaptive Current Differential Protection for Wind Farms Based on Cosine Compensation Coefficient

IET Generation, Transmission &Distribution, Volume 19, Issue 1, January/December 2025.
In this paper, a current differential protection (CDP) scheme based on cosine compensation coefficient is proposed. ABSTRACT The integration of doubly‐fed induction generators (DFIGs) into wind farms presents significant challenges to current differential protection (CDP). In this study, an adaptive CDP principle for wind farms is proposed.
Yifan Li, Bing Hou, Jiashuo Lv, Zebang Yang   +3 more
wiley   +1 more source

A Novel Wind Turbine Concept Based on an Electromagnetic Coupler and the Study of Its Fault Ride-through Capability [PDF]

, 2013
This paper presents a novel type of variable speed wind turbine with a new drive train different from the variable speed wind turbine commonly used nowadays.
Braulio Barahona, Chen, Chen, Hansen, Iov, Jianyun Chai, Krause, Larsen, Nicolaos Cutululis, Rui You, You   +10 more
core   +2 more sources