Results 201 to 210 of about 59,552 (266)
Some of the next articles are maybe not open access.
Comparison of AC Motors to an Ideal Machine Part I-Conventional AC Machines
2018 IEEE Energy Conversion Congress and Exposition (ECCE), 2018While comparison of the torque produced by AC machines of a given topology is, today, a standard feature of the machine design process, comparison of machines from different families of machine types is less frequently undertaken. This two part paper compares the torque performance of 6 types of AC machines based on the same current level, flux level ...
Thomas A. Lipo, Wenbo Liu
openaire +1 more source
Machine learning predicts risk in ACS
Nature Reviews Cardiology, 2021A new machine learning risk-stratification model accurately predicts the 1-year risk of ischaemic and major bleeding events in patients with an acute coronary syndrome and might be useful to guide clinical decision-making and optimize the quality of care of these patients.
openaire +2 more sources
Comparison of AC Motors to an Ideal Machine Part II—Non-Sinusoidal AC Machines
IEEE Transactions on Industry Applications, 2019This two-part article compares the torque performance of 12 types of ac machines based on the same surface current density, tooth flux density, and rotor dimensions. Part II examines the torque capability of machines more recently developed which utilize the wave shaping capability of a solid-state frequency inverter.
Thomas A. Lipo, Wenbo Liu, Zhentao Du
openaire +1 more source
Algebraic synthesis and analysis of windings for AC machines
e & i Elektrotechnik und Informationstechnik, 2021This paper presents an important method for the algebraic synthesis of the winding layout of AC machines. It applies in general to integral-slot and fractional-slot windings, including non-overlapping windings, so it can be claimed to unify the synthesis task. Moreover, it results in the highest possible winding factor at the working harmonic.
Johannes Germishuizen +2 more
openaire +1 more source
CONTROL OF AC-MACHINES WITH THE HELP OF MICROELECTRONICS
IFAC Proceedings Volumes, 1983Abstract AC-machines, in particular induction motors, are of simple mechanical construction but have a nonlinear, highly interacting multivariable control structure. This, in combination with the short time scale involved, has made it difficult in the past to design controlled AC-drives with high dynamic performance.
openaire +1 more source
1991
The commutator in a DC machine performs a complex function which we have not attempted to analyse in detail; the performance equations, on the other hand, are relatively simple. With the AC synchronous and induction machines, the situation is reversed. The absence of a commutator simplifies both the structure and the detailed analysis, but the machine ...
openaire +1 more source
The commutator in a DC machine performs a complex function which we have not attempted to analyse in detail; the performance equations, on the other hand, are relatively simple. With the AC synchronous and induction machines, the situation is reversed. The absence of a commutator simplifies both the structure and the detailed analysis, but the machine ...
openaire +1 more source
Application of adaptive fuzzy control to ac machines
Applied Soft Computing, 2007The decoupled control of torque and flux has made field oriented control an attractive choice for high performance induction motor drives. However, changes in the speed tracking trajectory and external disturbances make it difficult to achieve an acceptable closed-loop tracking performance, especially when traditional linear controllers are used.
Hazem N. Nounou, Habib-ur Rehman 0001
openaire +1 more source