Results 41 to 50 of about 11,966 (258)

Maximum efficiency of flexible AC transmission systems

open access: yesInternational Journal of Electrical Power & Energy Systems, 2006
Abstract The maximum efficiency of a transmission line is a concern from design and operation viewpoints. Today varieties of flexible AC transmission system (FACTS) devices are being included to enhance system stability and to improve power transfer capability.
A.K. Pradhan, A. Routray, Banaja Mohanty
openaire   +1 more source

Tracking Battery Microstructural Degradation Through Directional Thermal Transport Signatures

open access: yesAdvanced Functional Materials, EarlyView.
In lithium‐ion batteries, heat conduction varies between the through‐plane and in‐plane directions because of the cell's layered structure. Therefore, cell degradation influences thermal conductivity in each direction uniquely due to detailed microstructural and compositional changes.
Mohammad Shoghi Tekmedash   +6 more
wiley   +1 more source

STATCOM Impact on Distance Relay Performance

open access: yesDiyala Journal of Engineering Sciences, 2016
Flexible AC Transmission System devices provide for better utilization of already existing transmission systems as well as newly installed and upgraded systems.
Qais M. Alias
doaj   +1 more source

Flexible AC Transmission Systems (FACTS) [PDF]

open access: yes, 1999
* Chapter 1: Power transmission control: basic theory problems and needs FACTS solutions * Chapter 2: Power electronics: fundamentals * Chapter 3: High voltage dc transmission technology * Chapter 4: Shunt compensation: SVC and STATCOM * Chapter 5: Series compensation * Chapter 6: Phase shifter * Chapter 7: The unified power flow controller * Chapter 8:
openaire   +1 more source

Enhanced Ferroelectric Phase Formation via Local Structure Modification in the Pre‐Crystalline State of Hafnium Zirconium Oxide Thin Films

open access: yesAdvanced Functional Materials, EarlyView.
Hafnium zirconium oxide thin films are grown using plasma‐enhanced atomic layer deposition with the addition of an atomic layer annealing (ALA) step. ALA leads to a change in the short‐range structure of the deposit and encourages formation of the ferroelectric Pca21 phase. The result is wake‐up‐free performance with films exposed to ALA.
Nicolas K. Lam   +18 more
wiley   +1 more source

Multistage AC transmission expansion planning including fault current‐limiting high‐temperature superconducting cables and multiple distributed generations to improve short‐circuit level and grid‐scale flexibility

open access: yesIET Generation, Transmission & Distribution
This paper proposes a new multistage AC model for transmission expansion planning that finds an optimal combination of transmission lines, fault current‐limiting high‐temperature superconducting cables, and multiple distributed generations (DGs). On this
Mojtaba Shivaie   +2 more
doaj   +1 more source

Optimized implementation of intelligent controller based on the Lyapunov energy function of FACTS devices for improving transient stability [PDF]

open access: yesمجله مدل سازی در مهندسی, 2015
In this paper, improvement of the transient stability of power systems using the Flexible AC Transmission Systems (FACTS) parallel devices (ASVC and SVC) has been analyzed.
saeed abazari, mohammad sadegh payam
doaj   +1 more source

Advances in Solution‐Processed Textile Triboelectric Nanogenerators: Ink Formation, Processing Strategies, Applications, and Challenges

open access: yesAdvanced Functional Materials, EarlyView.
Advanced ink systems for solution‐processed textile triboelectric nanogenerators are systematically summarized, spanning conductive, tribo‐negative, and tribo‐positive layers. By connecting ink chemistry, deposition methods, and device function, the present review reveals the key governing principles of solution development and highlights practical ...
Xinlong Sun, Stephen Beeby
wiley   +1 more source

Single-Ended Protection Scheme for Offshore Flexible Low-Frequency Transmission Lines Based on High-Frequency Transient Quantities [PDF]

open access: yesDianli jianshe
[Objective] To enhance the speed and reliability of protection for marine flexible low-frequency AC transmission lines and ensure the safe operation of offshore wind power flexible low-frequency AC transmission systems,high-frequency transient single ...
LI Jingzheng, DU Xiaotong, LI Meng
doaj   +1 more source

Drop‐on‐Demand Printed Negative Dielectric Anisotropy Liquid Crystal Droplets for Adaptive Complex Beam Manipulation and Assessment

open access: yesAdvanced Functional Materials, EarlyView.
Printed negative‐dielectric‐anisotropy liquid‐crystal droplets enable multidimensional full‐vectorial optical‐field sensing across polarization, phase, and wavelength, while also generating tunable skyrmionic‐like complex optical fields. ABSTRACT Adaptive manipulation of vectorial optical fields is important for optical metrology, imaging, and ...
Jinge Guo   +14 more
wiley   +1 more source

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