Zobrazeno 1 - 10
of 193
pro vyhledávání: '"HONGZHONG MA"'
Publikováno v:
IEEE Access, Vol 12, Pp 43838-43848 (2024)
Partial discharge (PD) is one of the main reasons of insulation deterioration in gas insulated switchgear (GIS). How to efficiently and accurately identify PD signals is an important guarantee for the stable operation of GIS. In this paper, an improv
Externí odkaz:
https://doaj.org/article/802c9ebe982043fbbc1bc4349213b2bf
Publikováno v:
IEEE Access, Vol 12, Pp 3315-3327 (2024)
Partial discharge (PD) seriously affects the operational safety of power equipment. In order to effectively diagnose the PD in gas insulated switchgear (GIS), a GIS PD fault diagnosis method based on improved whale optimization algorithm (IWOA) is pr
Externí odkaz:
https://doaj.org/article/15355deefd8f43d887b68d6b0e1a589a
Publikováno v:
Frontiers in Public Health, Vol 12 (2024)
IntroductionOsteoporosis is a prevalent challenge in clinical orthopedics, affecting a significant percentage of individuals aged 50 and above. The goal of this study was to comprehensively understand the relationships between a specialized dietary r
Externí odkaz:
https://doaj.org/article/ef80067d09bd42c6bc80a3a9d1e7220b
Publikováno v:
Propulsion and Power Research, Vol 12, Iss 3, Pp 336-355 (2023)
“Ionic wind” generators are used as the main propulsion system in ion propulsion unmanned aerial vehicles (UAVs). Owing to the large size and poor stiffness of the electrode array in the propulsion system, the electrode array is prone to deformat
Externí odkaz:
https://doaj.org/article/7451a78134b446d59c7473178d58c439
Publikováno v:
Archives of Electrical Engineering, Vol vol. 72, Iss No 1, Pp 189-210 (2023)
Fractional-slot concentrated-winding permanent magnet synchronous machines (FSCW-PMSMs) have a good prospect of application in the drive system of electric and hybrid electric vehicles. However, the armature magnetomotive force (MMF) of FSCWPMSM cont
Externí odkaz:
https://doaj.org/article/afba832506b84dc9a01291927628109a
Publikováno v:
Mathematical Biosciences and Engineering, Vol 20, Iss 3, Pp 4877-4895 (2023)
Aiming at the problem of on-load tap changer (OLTC) fault diagnosis under imbalanced data conditions (the number of fault states is far less than that of normal data), this paper proposes an OLTC fault diagnosis method based on an Improved Grey Wolf
Externí odkaz:
https://doaj.org/article/5f9c77d90a78494799847879162a7aff
Publikováno v:
Frontiers in Energy Research, Vol 11 (2023)
Accurate quantitative diagnosis of free-conducting particle faults plays an important role in improving the reliability of the gas insulated line (GIL) system. However, the existing fault diagnosis methods cannot accurately identify the free-conducti
Externí odkaz:
https://doaj.org/article/5b869360519f44be9db9452289470d2e
Publikováno v:
IEEE Access, Vol 9, Pp 32019-32029 (2021)
The construction of hydropower stations has been expanding in China as a result of economic development and the improvement of people's lives. To save cost, the capacity of a single unit has been greatly increased, and many higher technical requireme
Externí odkaz:
https://doaj.org/article/c1fa65c269c94a98b16168ccfb4fdf35
Publikováno v:
IEEE Access, Vol 9, Pp 9308-9317 (2021)
In a marine environment, the working conditions for carbon brush and slip-ring system are complicated, leading to carbon brush abrasion and a shortened replacement cycle. A research and experiment platform using a salt spraying tester has been establ
Externí odkaz:
https://doaj.org/article/7a515c3ad7c04ebbb8820745b75c8e2b
Publikováno v:
IEEE Access, Vol 9, Pp 46487-46504 (2021)
With the rapid development of power grids, the voltage level and capacity of high-voltage shunt reactors (HVSRs) are increasing year by year, and HVSR faults are increasing, especially HVSRs core winding faults. The HVRSs core winding faults seriousl
Externí odkaz:
https://doaj.org/article/8bcdff1cf26d411fbf4c1bbb6555c4f3