Results 61 to 70 of about 202,483 (295)

A Novel Phase locked Loop Scheme for Grid Voltage Synchronisation Using the Energy Operator [PDF]

, 2015
A well-known issue with existing power systems is rapid and accurate synchronisation to grid voltages when the system is unbalanced under grid fault conditions and corrupted with harmonics. This paper presents a novel phase locked loop technique for grid
Chong, BVP, Nwobu, CJ, Zhang, L
core   +1 more source

Additive Gaussian Process Regression for Predictive Design of High‐Performance, Printable Silicones

Advanced Engineering Materials, EarlyView.
A chemistry‐aware design framework for tuning printable polydimethylsiloxane (PDMS) for vat photopolymerization (VPP) is developed using additive Gaussian process (GP) modeling. Polymer network mechanics informs variable groupings, feasible formulation constraints, and interaction variables.
Roxana Carbonell, Martha Leach, Hongtao Song, Carolyn Seepersad   +3 more
wiley   +1 more source

Research on the improved hybrid DC circuit breaker with voltage-limiting and current-limiting capability

International Journal of Electrical Power & Energy Systems
The DC circuit breaker (DCCB) is a critical device that ensures the safe and reliable operation of the DC transmission system. As the level of DC voltage and transmission power increases, the flexible DC grid will need more and more opening capacity of ...
Hongchun Shu, Zongxue Shao, Yue Dai
doaj   +1 more source

Dynamic effects of fault modeling on stair-step and corner-point grids

Journal of Petroleum Exploration and Production Technology, 2021
Fault modeling has become an integral element of reservoir simulation for structurally complex reservoirs. Modeling of faults in general has major implications for the simulation grid.
Faruk O. Alpak, Tianhong Chen
doaj   +1 more source

Impact of Grid Unbalances on Electric Vehicle Chargers

Energies, 2023
There is a global trend to reduce emissions from cars through the adoption of other alternatives, such as electric vehicles (EVs). The increasing popularity of EVs has led to a growing demand for electric vehicle chargers.
Sultan Alwahaibi, Patrick Wheeler, Marco Rivera, Md Rishad Ahmed   +3 more
doaj   +1 more source

Overview of increasing the penetration of renewable energy sources in the distribution grid by developing control strategies and using ancillary services [PDF]

, 2014
Increasing the renewables energy resources in the distribution network is one of the main challenges of the distributed system operator due to instability, power quality and feeder capacity problems. This paper proposes a solution for further penetration
Bozalakov, Dimitar, Meersman, Bart, Vandevelde, Lieven, Vandoorn, Tine   +3 more
core  

An Adaptive Overcurrent Coordination Scheme to Improve Relay Sensitivity and Overcome Drawbacks due to Distributed Generation in Smart Grids [PDF]

, 2017
Distributed Generation (DG) brought new challenges for protection engineers since standard relay settings of traditional system may no longer function properly under increasing presence of DG.
Conde, Arturo, Leonowicz, ZBIGNIEW MARIA, Martirano, Luigi, Shih, Meng Yen   +3 more
core   +1 more source

Four‐Point Bending Tests at High Temperatures on Commercial MgO‐C Refractory Bricks with and Without Recyclate Considering Different Carbon Contents

Advanced Engineering Materials, EarlyView.
Four‐point bending tests are conducted in an argon atmosphere on commercial MgO‐C brick grades with and without MgO‐C recyclate from room temperature up to 1300 °C. No detrimental effect of the MgO‐C recyclates on bending strength is found. Instead, a decisive influence of the total carbon content is observed, with lower total carbon contents ...
Alexander Schramm, Lukas Knöchel, Thomas Schemmel, Christos G. Aneziris, Anja Weidner, Horst Biermann   +5 more
wiley   +1 more source

Fault location in the observation matrix of collection lines for grid-connected wind power supported by grid-forming energy storage

International Journal of Electrical Power & Energy Systems
Aiming at the problem that the accuracy of fault location in the collection line supported by energy storage for wind power grid connection is easily affected by the number of measurement points and the access of power electronic equipment, a fault ...
Hongchun Shu, Bowen Wang, Jun Dong, Yutao Tang   +3 more
doaj   +1 more source

Sulfur Hexafluoride Gas Leakage Monitoring and Early-Warning Method for Electrical Power Facilities

IEEE Access, 2020
Most transformer substations in power supply facilities rely on sulfur hexafluoride electrical equipment. A sulfur hexafluoride gas leak can cause serious health concerns if effective measures are not adopted in time.
Chunrui Liu, Fujie Deng, Lei Shi, Feng Wang   +3 more
doaj   +1 more source