Results 51 to 60 of about 3,029,816 (219)

A novel control strategy to suppress transient overvoltage balancing active power impact reduction caused by commutation failure

International Journal of Electrical Power & Energy Systems
The line-commutated high voltage direct current (LCC-HVDC) is easy to occur commutation failure (CF), during the CF and recovery period, lots of reactive power surplus can cause transient overvoltage (TOV) in the sending end system.
Wan Liu, Chunya Yin, Fengting Li, Xiaozhu Li, Lu Han, Yining Zhang   +5 more
doaj   +1 more source

A Quantitative Index to Evaluate the Commutation Failure Probability of LCC-HVDC with a Synchronous Condenser

, 2019
Since thyristor cannot turn off automatically, line commutated converter based high voltage direct current (LCC-HVDC) will inevitably fail to commutate and therefore auxiliary controls or voltage control devices are needed to improve the commutation ...
Chunyi Guo, Chengyong Zhao, Atiq Ur Rehman, Jiangbo Sha, Atiq Ur Rehman   +4 more
core   +1 more source

Area‐restricted search under realistic constraints

Oikos, EarlyView.
Abstract Area‐restricted search (ARS) is one of the most influential and widely used concepts in foraging theory, capturing a simple rule by which animals intensify local search following a resource encounter. Because ARS performs well in many spatially structured environments, it serves as a basic model for interpreting movement patterns across taxa ...
Inon Scharf, Arik Dorfman
wiley   +1 more source

Commutation Failure Prevention for HVDC Improvement in algorithm for commutation failure prevention in LCC HVDC

, 2016
Line commutated HVDC systems are widely used due to their high power ratings. However, one of the disadvantages of such HVDC systems is the high risk of commutation failures when AC disturbances arise.
Oketch, Innocent
core   +1 more source

Benchmark model of the DC sending-end system with high-penetration renewable energy for voltage stability analysis

Frontiers in Energy Research
IntroductionWith the increasing integration of renewable energy, the power grid is gradually facing multi-mode voltage stability problems, especially at the DC sending end.
Minglei Jiang, Shengyao Shi, Pupu Chao, Zhipeng Zhang, Xin She, Kerui Ma, Kaiping Wang, Dachi Zhang, Xin Li   +8 more
doaj   +1 more source

Privacy‐Preserving Data‐Driven Distributed MPC for Heterogeneous Nonlinear Multi‐Agent Systems

International Journal of Robust and Nonlinear Control, EarlyView.
ABSTRACT Distributed model predictive control (DMPC) is a cornerstone for coordinating multi‐agent systems, yet simultaneously ensuring data privacy, handling unknown nonlinear dynamics, and managing heterogeneous constraints remains an open challenge.
Mahmood Mazare, Hossein Ramezani
wiley   +1 more source

An Artificial Neural Network Based Strategy for Commutation Failure Forecasting in LCC-HVDC Transmission Networks

, 2023
Commutation failure (CF) is a major challenge associated with line-commutated converter high voltage dc (LCC-HVdc) systems. Faults at the inverter ac systems are regarded as main cause of commutation failure.
Kimia Ghaffari (10332005), Jinghan He (6458033), Kashem M Muttaqi (13589731), Sohrab Mirsaeidi (20257917), Dalila Mat Said (12413386), Fuxiang Shang (20260779)   +5 more
core   +1 more source

How Aligned Are Citizen Preferences With the 15‐Minute Cities Paradigm? An International Survey and K‐Means Clustering Study

Sustainable Development, EarlyView.
ABSTRACT This study investigates how citizens' mobility preferences align with the principles of the 15‐Minute City (15mC), addressing three research questions: what access times and transport modes citizens consider acceptable, whether mobility preference can be clustered, and which services are perceived incompatible with the 15mC.
Maria Perales‐Eguiluz, A. Divasson‐J, Nekane Ione Sainz Bedoya, Cruz E. Borges   +3 more
wiley   +1 more source

Citizen Participation and Transport Sustainability: A Novel Fuzzy ZE‐AHP and Fuzzy ZE‐MABAC Model, Evidence From Dublin, Ireland

Sustainable Development, EarlyView.
ABSTRACT Strategic citizen engagement is fundamental to the socio‐technical transition toward sustainable urban mobility. This study investigates the integration of digital participatory tools within the transport planning framework of Dublin, Ireland, to facilitate inclusive, transparent, and equitable governance.
Sarbast Moslem, Brian Caulfield
wiley   +1 more source

Suppression measures of commutation failure in MIDC transmission systems

, 2019
With the increasing of direct current (DC) transmission capacity, high-voltage DC (HVDC) location has become more and more intensive, and commutation failure has become increasingly prominent in multi-infeed DC (MIDC） transmission systems.
Wang Qing, Wang Ling, Liu Kaipei
core   +1 more source