Results 151 to 160 of about 80,128 (213)

Low variability of the Atlantic Meridional Overturning Circulation throughout the Holocene. [PDF]

Nat Commun
Gerber L, Lippold J, Süfke F, Valk O, Testorf P, Ehnis M, Tautenhahn S, Max L, Chiessi CM, Regelous M, Szidat S, Friedrich O, Pöppelmeier F.   +12 more
europepmc   +1 more source

Present-day tropical precipitation and cloud feedbacks determine future equatorial Pacific trends. [PDF]

Sci Adv
Stevenson S, Deser C, Coats S, Falster G, Konecky B, Maher N, Pfleger C.   +6 more
europepmc   +1 more source

A Highly Sensitive Giant Magnetoresistive (GMR) Biosensor Based on the Magnetic Flux Concentrator Effect. [PDF]

Micromachines (Basel)
Sun H, Li J, Zhao C, Ren C, Tian T, Lei C, Sun X.   +6 more
europepmc   +1 more source

Optimization design and torque performance research of interior permanent magnet synchronous motors. [PDF]

Sci Rep
Niu L.
europepmc   +1 more source

The effect of freshwater biases on AMOC stability across the model complexity spectrum

Boot AA, Dijkstra HA.
europepmc   +1 more source

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A Mechanical Flux Weakening Method for Switched Flux Permanent Magnet Machines

IEEE Transactions on Energy Conversion, 2015
Several switched flux permanent magnet (SFPM) machines with mechanically movable flux adjusting technique are proposed, analyzed, and compared for applications which demand high speed and efficiency. By using ferromagnetic pieces-–one per every stator pole or every alternative stator pole, which are named as flux adjusters (FAs) and located on the ...
Z. Q. Zhu, M. M. J. Al-Ani, X. Liu, Beomseok Lee   +3 more
openaire   +3 more sources

Adaptive flux-weakening controller for IPMSM drives

2011 IEEE Energy Conversion Congress and Exposition, 2011
Voltage feed-back flux-weakening (FW) control scheme for vector-controlled Interior Permanent Magnet Synchronous Motor (IPMSM) drive systems is considered in this paper. The voltage controller is based on the difference between the amplitude of the reference voltage space vector and a proper limit value, related to the feeding inverter limitations, and
S. BOLOGNANI, CALLIGARO, Sandro, PETRELLA, Roberto   +2 more
openaire   +3 more sources

Flux-Weakening Capability of Flux-Switching Permanent Magnet Motor

2010 International Conference on E-Product E-Service and E-Entertainment, 2010
A 12/10 flux-switching permanent magnet motor (FSPM) is described. Qualitative analysis of magnetic circuit indicates that a connection between stator segments is benefit to motor operation. From the basic principle of flux-weakening speed-extension operation, weaken magnetic factor and speed-extension multiple are calculated. The analysis results show
Junyou Yang, Qiang Ma, Yuan Deng, Yongheng Liu   +3 more
openaire   +1 more source

Flux-weakening control performance of partitioned stator switched flux PM machines

2015 IEEE International Electric Machines & Drives Conference (IEMDC), 2015
This paper first investigates the flux-weakening control performance of two types of partitioned stator-switched flux permanent-magnet (PM) (PS-SFPM) machines and then proposes a novel mechanical flux-weakening technique. The PS-SFPM machine topologies, operation principles, and flux-weakening control method are described. In addition, it is shown that
D. J. Evans, Z. Q. Zhu, H. L. Zhan, Z. Z. Wu, X. Ge   +4 more
openaire   +1 more source