DSP utilization in radial positioning control of bearingless machine

Ferreira, Jossana; Paiva, José Alvaro de; Salazar, Andrés O.; Castro, F.E.F.; Lisboa, S.N.D.

doi:10.1109/isie.2003.1267265

Cited by 8 publications

(3 citation statements)

References 4 publications

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“…Manipulating (4) and (1), using Gauss law for magnetic fields in closed surfaces, assuming that the magnetic permeability of the core is infinite, that magnetic field is homogenous along the axial direction, that the dispersion of the magnetic field on both extremities of the rotor is neglected and considering that the airgap is very small when compared to the rotor radius, self and mutual inductances can be evaluated as in (5) and 6respectively (5) (6) where N v and N w are the winding functions. For instance, for winding v:…”

Section: A Analytical Methods (Am)mentioning

confidence: 99%

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Comparative Study Of The Inductances Of An Induction Motor With Rotor Eccentricities

Rodríguez¹,

Santisteban²,

Ferreira³

2010

Eletrônica de Potência

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In this work, the inductances of an induction motor, which rotor may be misaligned, are evaluated. Two types of analysis are performed: Analytical Method (AM) and Finite Element Method (FEM). For radial displacements, both methods show equivalent results but to evaluate inductances as a function of angular displacements, only with FEM was possible to get results as with AM it would be necessary intricate functions. The inductances obtained with FEM were included in simulations of a bearingless induction motor with split windings. This approach shows a good agreement with experimental results.

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Section: A Analytical Methods (Am)mentioning

confidence: 99%

“…With this configuration it is possible to generate torque and radial positioning forces. With this approach some works were reported in the literature focusing on starting and constant speed operation [4], [5]. Strategies of speed control with good responses were also reported in [6].…”

Section: Introductionmentioning

confidence: 99%

Comparative Study Of The Inductances Of An Induction Motor With Rotor Eccentricities

Rodríguez¹,

Santisteban²,

Ferreira³

2010

Eletrônica de Potência

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“…To perform digital control of rotational speed and radial position, the system uses DSP (Digital Signal Processor), since it is a microcontroller device that exhibits high processing capacity and low cost [22]. Simultaneously to vector control of speed, current and radial position control were also performed [23].…”

Section: Introductionmentioning

confidence: 99%

Performance Analysis Of A Neural Flux Observer For A Bearingless Induction Machine With Divided Windings

Paiva¹,

Victor²,

Salazar³

et al. 2010

Eletrônica de Potência

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This article presents a system of vector speed control using neural estimation of rotor flux for a 1.1 kWatt winding bearingless three-phase induction machine. The neural estimator is composed of two multilayer feedforward linear networks and substitutes the estimator based on the inverse model of the machine, in which undesirable characteristics such as non-linearity and parametric variations that generate flux estimation errors are observed. The inputs of the developed networks are the currents in vector coordinates of the rotor flux and the mechanical speed of the machine, and their outputs are the angular speed of the rotor flux and the magnetization current. The vector controller operates in conjunction with radial position and current controllers. The control algorithm is implemented in a Digital Signal Processing (DSP) with six PWM monophasic inverters at 10 kHz switch frequency.1

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Design of Single-Winding Arrangement for Arbitrary Multiphase Bearingless Permanent Magnet Synchronous Motor

Wang,

Bai,

Guo

2024

J. Electr. Eng. Technol.

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DSP utilization in radial positioning control of bearingless machine

Cited by 8 publications

References 4 publications

Comparative Study Of The Inductances Of An Induction Motor With Rotor Eccentricities

Comparative Study Of The Inductances Of An Induction Motor With Rotor Eccentricities

Performance Analysis Of A Neural Flux Observer For A Bearingless Induction Machine With Divided Windings

Design of Single-Winding Arrangement for Arbitrary Multiphase Bearingless Permanent Magnet Synchronous Motor

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