Results 121 to 130 of about 6,578,394 (152)
Unified Iterative Algorithm for Power Flow of AC/DC System with Multi-Type DC Links
As an emerging trend in power grid development, the AC/DC hybrid power grid presents the characteristics of multi-type DC links and large-scale AC/DC interconnection.
Chengyong Zhao +5 more
core +1 more source
Energy Internet, EarlyView.ABSTRACT The combination of electric‐heating interconnected microgrids (EHIMs) with grid‐forming converters (GFMCs) offers a highly promising approach to improving energy management within decentralised energy systems. Despite its potential, precisely modelling and analysing energy flow in such systems remains a considerable challenge due to the ...
Ji Li +15 more
wiley +1 more source
High Voltage, EarlyView.ABSTRACT The condition assessment of oil–paper insulation is critical for oil–immersed power transformers, which are fundamental to the reliability of modern power systems. The primary limitation of traditional transformer ageing assessment lies in its macroscopic, whole‐unit approach, which fails to account for the localised effects of nonuniform ...
Mingze Zhang +7 more
wiley +1 more source
Advanced AC-AC, AC-DC and DC-DC power electronics converters for smart grid [PDF]
Converters and controllers of power electronics are the lifeblood of many emerging technologies in manufacturing, information technology and more. This thesis investigates the design, analysis, and implementation of advanced AC-AC, AC-DC and DC-DC power ...
Younis, Hafiz Muhammad Fahim
core +1 more source
High Voltage, EarlyView.ABSTRACT The alternate arm converter (AAC) is one of the most efficient multilevel topologies based on voltage source converters (VSCs), which has recently gained attention in various applications, particularly in high voltage direct current (HVDC) systems.
Ehsan Akbari, Milad Samady Shadlu
wiley +1 more source
ANN‐Based Alternative Controllers for Three‐Phase Four‐Wire Grid‐Connected NPC Inverters
IET Electric Power ApplicationsThe synchronously rotating reference frame (SRRF)‐based proportional‐integral (PI) control technique has been though studied in many different inverter applications, a well‐designed and clearly presented application of this technique for the three‐phase,
Yunus Emre Yağan
doaj +1 more source
Impact of Facial Pattern and Smile Arc on the Perception of Male Facial Attractiveness
Journal of Esthetic and Restorative Dentistry, EarlyView.ABSTRACT Objective To investigate how variations in smile arc and facial pattern influence the perception of male facial attractiveness. Materials and Methods Nine standardized frontal photographs of a male model were digitally modified to generate three smile arc configurations (consonant, straight, and inverted) and three facial patterns ...
Lucia Gloria Diana Aguilar Pizzurno +5 more
wiley +1 more source
The DC-side response characteristics of the VSC-HVDC transmission system under AC-side sub-synchronous disturbances may lead to the propagation of AC/DC oscillations, and then there may be non-fundamental frequency oscillation on the DC-side.
Zilong Miao +5 more
core +1 more source
Energy Storage, Volume 8, Issue 8, December 2026.ABSTRACT The rapid expansion of variable renewable energy in Brazil has induced severe intraday curtailment, characterized by a pronounced “Duck Curve” driven by transmission limits and regional centralization of generation. This study evaluates the techno‐economic and regulatory feasibility of utility‐scale photovoltaic (PV) plants integrated with ...
Jorge Alberto Lewis Esswein Júnior +2 more
wiley +1 more source
AIChE Journal, Volume 72, Issue 11, November 2026.Abstract Mixed‐conducting ceramic hollow fiber membranes are a versatile platform for oxygen separation, value‐added chemical production, and oxy‐combustion. Because oxygen permeation is thermally activated, these systems typically rely on bulky, energy‐intensive furnaces that suffer from low efficiency and large thermal inertia.
Gang Wang +2 more
wiley +1 more source