Results 181 to 190 of about 6,885 (267)

An Impact Load History Reconstruction Method for Composite Structures Based on FBG Sensing Data and the GCV Principle. [PDF]

Sensors (Basel)
Zeng J, Xu J, Xu Y, Zhao X, Wang S, Zhou Y, Wang Y.   +6 more
europepmc   +1 more source

Time to Breakdown for Type I Motor Winding Insulation Under High‐Frequency High‐Slew‐Rate Square Wave Voltages

High Voltage, EarlyView.
ABSTRACT The emergence of (ultra)wide bandgap ((U)WBG)‐based devices has significantly enhanced performance in high‐frequency switching applications, enabling breakthroughs in electric transportation, aerospace, and renewable energy systems. However, it also presents considerable challenges to insulation systems, such as electric motor winding ...
Easir Arafat, Md Asifur Rahman, Farzana Islam, Mona Ghassemi   +3 more
wiley   +1 more source

Tsunami inversion using deep neural representations. [PDF]

Sci Rep
Morssy A, Teal PD, Kleijn WB.
europepmc   +1 more source

Zero‐Current Switching Based Model Predictive Control of a Double‐Extended Overlapped Alternate Arm Converter Used in the VSC–HVDC System

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

Partially melted low velocity zones reveal an active upper mantle beneath Elysium Planitia, Mars. [PDF]

Nat Commun
Dai M, Sun D, Zhao C, Mao Z, Sun N, Bi H.   +5 more
europepmc   +1 more source

Stability Analysis and Improvement Mechanism of Grid‐Forming Converter Connected to a Low‐Impedance Grid

High Voltage, EarlyView.
ABSTRACT This paper investigates the stability and improvement mechanisms of a grid‐forming (GFM) converter connected to a low‐impedance grid. Initially, a state‐space model of the GFM converter integrated into an AC grid is developed for stability analysis.
Xiaotong Ji, Jinyu Wen, Yunhui Huang
wiley   +1 more source

Cone‐Type Insulator Surface Electric Field Measurement Based on Advanced Integrated Optical Electric Field Sensor

High Voltage, EarlyView.
ABSTRACT Direct and accurate measurement of insulator near‐surface electric fields in gas‐insulated equipment is critical for understanding charge accumulation and insulation failure, yet it has been technically challenging. Optical sensing technology is renowned for its high sensitivity, wide dynamic range, strong resistance to electromagnetic ...
Juntong Zong, Weiqi Qin, Zhecheng Zhang, Changhong Zhang, Weiguo Li, Chuanyang Li, Jinliang He   +6 more
wiley   +1 more source

Earthquake Early Warning System for Izmir, Western Anatolia, Türkiye Based on Multi-Station Similarity Analysis and Real-Time Seismic Data Processing. [PDF]

Sensors (Basel)
Doğan Y, Başbuğ A, Semirgin F, Kaya YE, Çınar O, Sözbilir H, Özdağ ÖC, Yılmaz R, Kut A, Tamer Ö, Çakır R, Utku M, Özçelik Ö, Softa M.   +13 more
europepmc   +1 more source

Optimization of Wind‐PV Co‐Generation Systems Using Artificial Bee Colony and Back‐to‐Back Voltage Source Converter

IET Smart Energy Systems, EarlyView.
The Graphical Abstract depicts the proposed Artificial Bee Colony algorithm‐based optimal tuning of PI controllers for back‐to‐back Voltage Source Converters in a hybrid wind–PV system. ABSTRACT This paper proposes a hybrid model‐based back‐to‐back voltage‐source converter (B2B‐VSC) system comprising a Photovoltaic (PV) array and a Permanent Magnet ...
Ch. Sreenu, G. Mallesham, T. Chandra Shekar, Surender Reddy Salkuti   +3 more
wiley   +1 more source