Results 61 to 70 of about 5,304 (193)

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

Distributed Energy Resource Behavior During Faults: Navigating Voltage Ride‐Through Compliance Within the Realm of EN 50549

IET Generation, Transmission &Distribution, Volume 19, Issue 1, January/December 2025.
This study examines how increasing inverter‐based RERs affect fault propagation in MV DNs, ensuring adherence to European grid codes EN 50549‐1 and EN 50549‐2 concerning LVRT requirements. A model predictive current control strategy, an LVRT, and secondary power controllers are developed and tested using a detailed MATLAB/Simulink model of the Sundom ...
Hussain Sarwar Khan, Muhammad Kamran Khan, Kimmo Kauhaniemi   +2 more
wiley   +1 more source

Transient characteristics and adaptive fault ride through control strategy of DFIGs considering voltage phase angle jump

Journal of Modern Power Systems and Clean Energy, 2017
Wind power in China has experienced fast development in recent years. However, areas rich in wind power resources are often far away from loads centers, which leads to weak connection between wind turbines and power grid.
Xinshou Tian, Yongning Chi, Weisheng Wang, Gengyin Li, Haiyan Tang, Zhen Wang   +5 more
doaj   +1 more source

Improving Power Quality and Fault Ride-Through (FRT) in Grid-Connected Hybrid Energy Systems: Design and Optimization of Dynamic Voltage Restorers

SMART MOVES JOURNAL IJOSCIENCE
The integration of renewable energy sources (RESs) into grid-connected systems has become pivotal in addressing climate change and building a sustainable, carbon-neutral society. However, challenges like power quality issues, grid stability, and fault ride-through (FRT) requirements remain significant.
Vardhan Patidar, Ashish Bhargava
openaire   +1 more source

Enhancement Fault Ride-Through Capability of DFIG By Using Resistive and Inductive SFCLs [PDF]

, 2014
The number of wind turbines connected to the grid is steadily increasing in recent years. This situation forced the revision of the electric utilities grid codes requirements, to remain connected during grid faults, i.e., to ride through the faults ...
Azizpour, Ali, Hosseini, Mehdi, Moghaddam, Mahmoud Samiei   +2 more
core   +2 more sources