Journal ArticleDOI
Speed-Sensorless Vector Control of a Bearingless Induction Motor With Artificial Neural Network Inverse Speed Observer
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TLDR
In this article, a speed observation scheme using artificial neural network (ANN) inverse method was proposed to effectively reject the influence of speed detection on system stability and precision for a bearingless induction motor.Abstract:
To effectively reject the influence of speed detection on system stability and precision for a bearingless induction motor, this paper proposes a novel speed observation scheme using artificial neural network (ANN) inverse method. The inherent subsystem consisting of speed and torque winding currents is modeled, and then its inversion is implemented by the ANN. The speed is successfully observed via cascading the original subsystem with its inversion. The observed speed is fed back in the speed control loop, and thus, the speed-sensorless vector drive is realized. The effectiveness of this proposed strategy has been demonstrated by experimental results.read more
Citations
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Journal ArticleDOI
Modeling and Design of a Novel 5-DOF AC–DC Hybrid Magnetic Bearing
TL;DR: In this paper , the authors investigated a novel integrated AC-DC hybrid magnetic bearing (HMB) to reduce the volume, weight, manufacturing, and operation cost of magnetic suspension motors.
Journal ArticleDOI
Stepless Speed Regulation Study of a Wound Pole-Fixed Bearingless Induction Motor With Three Windings
TL;DR: In this article , a new type of BIM with three windings (BIM3W) was proposed to realize variable-voltage and variable-load speed regulation by analyzing the magnetic field distribution with odd pole pairs and dipole pairs.
Journal ArticleDOI
Correction of the suspension force expression and the control compensation study in a bearingless induction motor
A Fuzzy-ELADRC Method for a Bearingless Induction Motor
TL;DR: The results show that the proposed fuzzy-ELADRC method not only realizes the rapid and stable suspension of the rotor, but also effectively improves the starting performance, variable speed performance, and antidisturbance performance of the BIM system.
Journal ArticleDOI
MPTC of a six-phase PMSHM with auxiliary voltage vectors
Hao Xu,Long Chen,Xiaodong Sun +2 more
References
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TL;DR: The real and complex number system as discussed by the authors is a real number system where the real number is defined by a real function and the complex number is represented by a complex field of functions.
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Neural network design
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Sensorless vector and direct torque control
TL;DR: This paper presents a space-phasor model of A.C. machines based on artificial intelligence-based steady-state and transient analysis of electrical machines, estimators and investigates the role of magnetic saturation in the control of these machines.
Journal ArticleDOI
Kolmogorov's theorem and multilayer neural networks
TL;DR: From a direct proof of the universal approximation capabilities of perceptron type networks with two hidden layers, estimates of numbers of hidden units are derived based on properties of the function being approximation and the accuracy of its approximation.
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Magnetic Bearings and Bearingless Drives
Akira Chiba,Tadashi Fukao,Osamu Ichikawa,Masahide Oshima,Masatsugu Takemoto,David G. Dorrell +5 more
TL;DR: The application of bearingless drives is emerging as an important technique in the areas of high-speed machinery and motion control, and a thorough grounding in the principles behind this cutting-edge technology is provided in this article.