Results 241 to 250 of about 276,244 (304)

A Public Opinion Propagation Model for Human-Made Disasters Considering Herd Behavior and Psychological Involvement. [PDF]

Entropy (Basel)
Zhang Y, Ni T, Tang W.
europepmc   +1 more source

Shear-Induced Graphitization in Tongyuanpu Shear Zone, Liaodong Peninsula of Eastern China: Insights from Graphite Occurrences, Nanostructures and Carbon Sources. [PDF]

Nanomaterials (Basel)
Shi M, Cheng N, Li J, Hou Q, Guo Q, Pan J.   +5 more
europepmc   +1 more source

Biomaterials in Restorative Dentistry and Endodontics. [PDF]

J Funct Biomater
Palma PJ, Nascimento FD.
europepmc   +1 more source

Some of the next articles are maybe not open access.

Related searches:

Control of the Induction Machine in the Field Weakening Range

IFAC Postprint Volumes IPPV / International Federation of Automatic Control, 1983
Abstract Control methods for the induction machine in the field weakening range are investigated, regarding control response, voltage requirements, converter and machine utilization, operation at the voltage limit, measurement base.
R. Joetten, H . Schierling
exaly   +2 more sources

Interior Permanent Magnet Synchronous Motor Linear Field-Weakening Control

IEEE Transactions on Energy Conversion, 2016
At nonlinear field-weakening control of interior permanent magnet synchronous motor (IPMSM), the working point is difficult to calculate and the saturation of current regulators may lead to losing control. Linear field-weakening control (LFC) of IPMSM is proposed to control both torque and current in wide speed range applications and LFC can prevent ...
Yukun Sun
exaly   +2 more sources

Torque-maximizing field-weakening control: design, analysis, and parameter selection

IEEE Transactions on Industrial Electronics, 2001
The torque-maximizing field-weakening control scheme proposed by Kim and Sul is developed further. The performance under imperfect field orientation conditions is investigated, and it is shown that an overestimated-rather than an underestimated-model leakage inductance should be used.
L. Harnefors, K. Pietilainen, L. Gertmar
exaly   +2 more sources

A compact field weakening controller implementation

International Symposium on Power Electronics, Electrical Drives, Automation and Motion, 2006. SPEEDAM 2006., 2006
This paper proposes a compact field weakening controller (FWC). The FWC was developed during the development of an electrically driven rear axle for a hybrid electric car. The overall control system of the vehicle, the hybrid controller (HC), delivers a reference torque for the rear drive unit (RDU).
J. Ottosson, M. Alakula
openaire   +1 more source

Novel PMSM field-weakening control method

IECON 2017 - 43rd Annual Conference of the IEEE Industrial Electronics Society, 2017
Voltage phase control is a novel field-weakening scheme for PMSM which was reported as more stable in high speed region. This paper provides a current ripple reduce method and a frequency-compensation method. The current ripple reduce method deals with the problem that the voltage phase control has bigger current ripple compared to the tradition method.
Jin Xinhai, Zeng Yanneng, Xu Dianguo
openaire   +1 more source

Improved field-weakening control for IFO induction motor

IEEE Transactions on Aerospace and Electronic Systems, 2003
Generally, good transient response and high conversion efficiency of a field-weakened indirect field-oriented (IFO), induction motor drive are difficult to obtain simultaneously owing to their contradictory behaviors. Moreover, its operating performance is quite sensitive to the flux level, detuned effect, and parameter variations.
M.S. Huang, C.M. Liaw
openaire   +1 more source