Zobrazeno 1 - 10
of 3 631
pro vyhledávání: '"Permanent Magnet Machines"'
Publikováno v:
IET Electric Power Applications, Vol 18, Iss 10, Pp 1095-1106 (2024)
Abstract Direct drive permanent magnet (PM) motors have become a very attractive choice for electric vehicles. Generally, PM motors are divided into PM synchronous motors (PMSMs) and PM flux‐modulated motors (PMFMMs). High torque density is the mai
Externí odkaz:
https://doaj.org/article/72185ecea9164e4886e2658d1af127f6
Publikováno v:
IET Electric Power Applications, Vol 18, Iss 10, Pp 1142-1153 (2024)
Abstract A variable flux leakage starter‐generator structure designed for helicopters is proposed. The research focuses on investigating the current distribution mechanism of the d‐q axis to determine the feasibility of incorporating variable flu
Externí odkaz:
https://doaj.org/article/b1bcf950a84d43ae90f22a578485df7f
Publikováno v:
IET Electric Power Applications, Vol 18, Iss 10, Pp 1279-1292 (2024)
Abstract This paper investigates the benefits and challenges of the multi‐MW direct‐drive offshore wind Vernier generators. It is worth noting that the comparison of generator topologies presented in ref. [1] was for the same power level and ther
Externí odkaz:
https://doaj.org/article/c62bd7ad98c64ac9bda8e4608a410d02
Autor:
M. H. Javanmardi, A. Rahideh
Publikováno v:
IET Electric Power Applications, Vol 18, Iss 10, Pp 1244-1253 (2024)
Abstract 2‐D air‐gap magnetic field distribution is the essential prerequisite of electrical machine analysis. Because of the natural periodicity of rotary machines, Fourier analysis is a suitable choice for air‐gap field prediction. However, d
Externí odkaz:
https://doaj.org/article/cf51eb4e5ba6448cabe0d40ab0f39702
Publikováno v:
IET Electric Power Applications, Vol 18, Iss 10, Pp 1187-1199 (2024)
Abstract A rotor speed signature analysis‐ (RSSA‐)based inter‐turn short circuit (ITSC) fault diagnostic method is proposed, which is robust with regard to speed‐ and current‐loop bandwidths of permanent magnet synchronous machine (PMSM) dr
Externí odkaz:
https://doaj.org/article/d4a334a78d504788af0ccd73e0e9b38f
Publikováno v:
IET Electric Power Applications, Vol 18, Iss 10, Pp 1359-1369 (2024)
Abstract The open‐circuit magnetic field of the V‐shaped interior PM (IPM) machine is predicted by the analytical method. The method is implemented following the basic principle of the subdomain method. The machine model is divided into five diff
Externí odkaz:
https://doaj.org/article/e31ae65fe7df4c9b8baf6708c30bb6a8
Publikováno v:
IET Electric Power Applications, Vol 18, Iss 10, Pp 1293-1304 (2024)
Abstract An analytical and optimisation method is presented to improve the air‐gap magnetic field of the surface‐mounted permanent magnet machine with multi‐level array magnets, which can reduce air‐gap magnetic field harmonics and torque rip
Externí odkaz:
https://doaj.org/article/f695e8cdf40b4a438d43d328854382c7
Autor:
Marcelo D. Silva, Sandra Eriksson
Publikováno v:
IET Electric Power Applications, Vol 18, Iss 8, Pp 912-923 (2024)
Abstract The use of rare earth elements (REE) in permanent magnets (PMs) raises problems in several domains. The supply chain of these is fragile, the prices have shown volatility and its manufacturing has a bigger impact on climate change when compa
Externí odkaz:
https://doaj.org/article/18266cf517254c5aa005243a1d41d766
Publikováno v:
IET Electric Power Applications, Vol 18, Iss 8, Pp 859-871 (2024)
Abstract A mathematical model of co‐axial magnetic gears is given for the prediction of magnetic field distribution and the magnetic forces. The modelling approach is based on the separation of variables method (SVM), Sturm–Liouville problem, and
Externí odkaz:
https://doaj.org/article/7acbba1aca804ab98103c19364653e4e
Publikováno v:
IET Electric Power Applications, Vol 18, Iss 7, Pp 756-765 (2024)
Abstract The authors investigate a semi‐flooded cooling technology for modular permanent magnet machines using flux gaps (FGs) in alternate stator teeth for extra cooling channels. The investigated machine is separated into stationary and rotationa
Externí odkaz:
https://doaj.org/article/574eadf885b74d1d951d15a05a60fccd