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Adaptive variable bias magnetic bearing control / / Dexter Johnson and Gerald V. Brown ; Daniel J. Inman
| Adaptive variable bias magnetic bearing control / / Dexter Johnson and Gerald V. Brown ; Daniel J. Inman |
| Autore | Johnson Dexter |
| Pubbl/distr/stampa | Cleveland, Ohio : , : National Aeronautics and Space Administration, Lewis Research Center, , April 1998 |
| Descrizione fisica | 1 online resource (7 pages) : illustrations |
| Collana | NASA/TM |
| Soggetto topico |
Magnetic bearings
Adaptive control Loads (forces) Energy consumption Directional control |
| Formato | Materiale a stampa  |
| Livello bibliografico | Monografia |
| Lingua di pubblicazione | eng |
| Record Nr. | UNINA-9910705876103321 |
Johnson Dexter
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| Cleveland, Ohio : , : National Aeronautics and Space Administration, Lewis Research Center, , April 1998 | ||
| Materiale a stampa | ||
| Lo trovi qui: Univ. Federico II | ||
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Control of surge in centrifugal compressors by active magnetic bearings : theory and implementation / / Se Young Yoon, Zongli Lin, Paul E. Allaire
| Control of surge in centrifugal compressors by active magnetic bearings : theory and implementation / / Se Young Yoon, Zongli Lin, Paul E. Allaire |
| Autore | Yun Se-yong |
| Edizione | [1st ed. 2013.] |
| Pubbl/distr/stampa | London, : Springer-Verlag, 2012 |
| Descrizione fisica | 1 online resource (291 p.) |
| Disciplina | 621.51 |
| Altri autori (Persone) |
LinZongli <1964->
AllairePaul E |
| Collana | Advances in industrial control |
| Soggetto topico |
Magnetic bearings
Automatic control |
| ISBN |
9786613934598
9781283622141 1283622149 9781447142409 1447142403 |
| Formato | Materiale a stampa |
| Livello bibliografico | Monografia |
| Lingua di pubblicazione | eng |
| Nota di contenuto | Introduction to Rotordynamics -- Fundamentals of Magnetic Bearings -- Design of AMB-supported Centrifugal Compressor -- Derivation of the Surge Dynamic Equations -- Control Design for AMB Suspension -- Control Design for Compressor Surge. |
| Record Nr. | UNINA-9910437914403321 |
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Yun Se-yong
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| London, : Springer-Verlag, 2012 | ||
| Materiale a stampa | ||
| Lo trovi qui: Univ. Federico II | ||
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Experimental methodology for determining turbomachinery blade damping using magnetic bearing excitation and non-contacting optical measurements [[electronic resource] /] / Andrew J. Provenza, Kirsten P. Duffy ; prepared for the Turbo Expo 2010 sponsored by the American Society of Mechanical Engineers (ASME), Glasgow, Scotland, United Kingdom, June 14-18, 2010
| Experimental methodology for determining turbomachinery blade damping using magnetic bearing excitation and non-contacting optical measurements [[electronic resource] /] / Andrew J. Provenza, Kirsten P. Duffy ; prepared for the Turbo Expo 2010 sponsored by the American Society of Mechanical Engineers (ASME), Glasgow, Scotland, United Kingdom, June 14-18, 2010 |
| Autore | Provenza Andrew J |
| Pubbl/distr/stampa | Cleveland, Ohio : , : National Aeronautics and Space Administration, Glenn Research Center, , [2010] |
| Descrizione fisica | 1 online resource (10 pages) : illustrations |
| Altri autori (Persone) | DuffyKirsten P |
| Collana | NASA/TM |
| Soggetto topico |
Turbomachinery
Piezoelectricity Magnetic bearings Rotor speed Mechanical properties Optical measurement |
| Formato | Materiale a stampa |
| Livello bibliografico | Monografia |
| Lingua di pubblicazione | eng |
| Record Nr. | UNINA-9910699909403321 |
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Provenza Andrew J
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| Cleveland, Ohio : , : National Aeronautics and Space Administration, Glenn Research Center, , [2010] | ||
| Materiale a stampa | ||
| Lo trovi qui: Univ. Federico II | ||
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Halbach magnetic rotor development [[electronic resource] /] / Christopher A. Gallo
| Halbach magnetic rotor development [[electronic resource] /] / Christopher A. Gallo |
| Autore | Gallo Christopher A |
| Pubbl/distr/stampa | Cleveland, Ohio : , : National Aeronautics and Space Administration, Glenn Research Center, , [2008] |
| Descrizione fisica | 1 online resource (20 pages) : illustrations |
| Collana | NASA TM- |
| Soggetto topico |
Magnetic bearings
Product development Rotors Fly by wire control Magnetic suspension Noise intensity |
| Formato | Materiale a stampa |
| Livello bibliografico | Monografia |
| Lingua di pubblicazione | eng |
| Record Nr. | UNINA-9910699549203321 |
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Gallo Christopher A
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| Cleveland, Ohio : , : National Aeronautics and Space Administration, Glenn Research Center, , [2008] | ||
| Materiale a stampa | ||
| Lo trovi qui: Univ. Federico II | ||
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Levitation performance of two opposed permanent magnet pole-pair separated conical bearingless motors / / Peter Kascak [and four others]
| Levitation performance of two opposed permanent magnet pole-pair separated conical bearingless motors / / Peter Kascak [and four others] |
| Autore | Kascak Peter |
| Pubbl/distr/stampa | Cleveland, Ohio : , : National Aeronautics and Space Administration, Glenn Research Center, , [2012] |
| Descrizione fisica | 1 online resource (10 pages) : illustrations |
| Collana | NASA/TM 2013-217863 |
| Soggetto topico |
Permanent magnets
Energy storage Magnetic bearings Flywheels Rotors Rotation |
| Formato | Materiale a stampa |
| Livello bibliografico | Monografia |
| Lingua di pubblicazione | eng |
| Record Nr. | UNINA-9910704757303321 |
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Kascak Peter
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| Cleveland, Ohio : , : National Aeronautics and Space Administration, Glenn Research Center, , [2012] | ||
| Materiale a stampa | ||
| Lo trovi qui: Univ. Federico II | ||
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Magnetic bearing controller improvements for high speed flywheel system / / Timothy P. Dever [and four others]
| Magnetic bearing controller improvements for high speed flywheel system / / Timothy P. Dever [and four others] |
| Autore | Dever Timothy P. |
| Pubbl/distr/stampa | Cleveland, Ohio : , : National Aeronautics and Space Administration, Glenn Research Center, , December 2003 |
| Descrizione fisica | 1 online resource (10 pages, 1 unnumbered page) : illustrations |
| Collana | NASA/TM |
| Soggetto topico |
Magnetic bearings
Flywheels |
| Formato | Materiale a stampa |
| Livello bibliografico | Monografia |
| Lingua di pubblicazione | eng |
| Record Nr. | UNINA-9910716602903321 |
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Dever Timothy P.
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| Cleveland, Ohio : , : National Aeronautics and Space Administration, Glenn Research Center, , December 2003 | ||
| Materiale a stampa | ||
| Lo trovi qui: Univ. Federico II | ||
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Magnetic bearings : theory and applications / / edited by Bostjan Polajzer
| Magnetic bearings : theory and applications / / edited by Bostjan Polajzer |
| Pubbl/distr/stampa | Rijeka, Croati : , : InTech, , [2010] |
| Descrizione fisica | 1 online resource (134 pages) : illustrations |
| Disciplina | 621.822 |
| Soggetto topico | Magnetic bearings |
| ISBN | 953-51-5925-9 |
| Formato | Materiale a stampa |
| Livello bibliografico | Monografia |
| Lingua di pubblicazione | eng |
| Altri titoli varianti | Magnetic Bearings |
| Record Nr. | UNINA-9910138272003321 |
| Rijeka, Croati : , : InTech, , [2010] | ||
| Materiale a stampa | ||
| Lo trovi qui: Univ. Federico II | ||
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Magnetic bearings and bearingless drives [[electronic resource] /] / Akira Chiba ... [et al.]
| Magnetic bearings and bearingless drives [[electronic resource] /] / Akira Chiba ... [et al.] |
| Edizione | [1st edition] |
| Pubbl/distr/stampa | Amsterdam ; ; London, : Elsevier/Newnes, 2005 |
| Descrizione fisica | 1 online resource (400 p.) |
| Disciplina | 621.822 |
| Altri autori (Persone) | ChibaAkira <1938-> |
| Soggetto topico |
Magnetic bearings
Power transmission |
| Soggetto genere / forma | Electronic books. |
| ISBN |
1-281-00902-4
9786611009021 0-08-047897-2 |
| Formato | Materiale a stampa |
| Livello bibliografico | Monografia |
| Lingua di pubblicazione | eng |
| Nota di contenuto |
Cover; Front matter; Half Title Page; Title Page; Copyright; Contents; List of Contributors; Foreword; Preface; Acknowledgements; 1. Introduction; 1.1 Magnetic bearing and motor drive; 1.2 Bearingless drives; 1.3 Definition and related technologies; 1.4 Early developments; 1.5 Bearingless structures; 1.6 Comparisons; 1.7 Winding structures; 1.8 Applications; References; 2. Electro-magnetics and mathematical model of magnetic bearings; 2.1 Electro-mechanical structure and operating principles; 2.2 Electric equivalent circuit and inductance; 2.3 Stored magnetic energy and force
2.4 Radial magnetic bearing 2.5 Unbalance pull force; 2.6 Block diagram and mechanical system; Reference; 3. Magnetic bearing controllers; 3.1 Design principles in one-axis magnetic suspension; 3.2 Adjustment of PID gains; 3.3 Interference in two perpendicular axes; 3.4 Unbalance force and elimination; 3.5 Eccentric displacement; 3.6 Synchronized displacement suppression; 4. Mechanical dynamics; 4.1 Two-axis system; 4.2 Four-axis and five-axis systems; 4.3 Thrust magnetic bearing and requirement of five-axis suspension; References; 5. Power electronic circuits for magnetic bearings 5.1 Structure and principles of power electronic circuits 5.2 PWM operation; 5.3 Current feedback; 5.4 Current driver operating area; 5.5 Power devices and gate drive circuits; 6. Primitive model and control strategy of bearingless motors; 6.1 Principles of radial force generation; 6.2 Two-pole bearingless motor; 6.3 MMF and permeance; 6.4 Magnetic potential and flux distribution; 6.5 Inductance matrix; 6.6 Radial force and current; 6.7 The dc excitation of the primitive bearingless motor; 6.8 AC excitation and revolving magnetic field; 6.9 Inductance measurements 7. Analysis in rotational coordinates and magnetic suspension strategy for bearingless drives with 2-pole and 4-pole windings 7.1 Vector control theory of electrical motors; 7.2 Coordinate transformation and torque regulation; 7.3 Vector control theory in bearingless motors; 7.4 Coordinate transformation from dc to ac bearingless machines; 7.5 System block diagrams of bearingless machines; References; 8. Field orientation, VA requirement and magnetic saturation; 8.1 Misalignment of field orientation; 8.2 VA requirement; 8.3 Magnetic saturation; References 9. Cylindrical permanent magnet synchronous bearingless motors 9.1 Structure of surface permanent magnet (SPM) rotor; 9.2 Radial suspension force and suspension winding current; 9.3 Equations of voltage and current; 9.4 Guideline for permanent magnet thickness and airgap length; 9.5 Irreversible permanent magnet demagnetization and MMF limitations of stator windings; 9.6 Control system configuration; References; 10. Inset types of permanent magnet bearingless motor; 10.1 Structure and features of an inset type of permanent magnet rotor; 10.2 Mutual interference between radial suspension forces 10.3 Rotor position control strategy |
| Record Nr. | UNINA-9910457311603321 |
| Amsterdam ; ; London, : Elsevier/Newnes, 2005 | ||
| Materiale a stampa | ||
| Lo trovi qui: Univ. Federico II | ||
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Magnetic bearings and bearingless drives [[electronic resource] /] / Akira Chiba ... [et al.]
| Magnetic bearings and bearingless drives [[electronic resource] /] / Akira Chiba ... [et al.] |
| Edizione | [1st edition] |
| Pubbl/distr/stampa | Amsterdam ; ; London, : Elsevier/Newnes, 2005 |
| Descrizione fisica | 1 online resource (400 p.) |
| Disciplina | 621.822 |
| Altri autori (Persone) | ChibaAkira <1938-> |
| Soggetto topico |
Magnetic bearings
Power transmission |
| ISBN |
1-281-00902-4
9786611009021 0-08-047897-2 |
| Formato | Materiale a stampa |
| Livello bibliografico | Monografia |
| Lingua di pubblicazione | eng |
| Nota di contenuto |
Cover; Front matter; Half Title Page; Title Page; Copyright; Contents; List of Contributors; Foreword; Preface; Acknowledgements; 1. Introduction; 1.1 Magnetic bearing and motor drive; 1.2 Bearingless drives; 1.3 Definition and related technologies; 1.4 Early developments; 1.5 Bearingless structures; 1.6 Comparisons; 1.7 Winding structures; 1.8 Applications; References; 2. Electro-magnetics and mathematical model of magnetic bearings; 2.1 Electro-mechanical structure and operating principles; 2.2 Electric equivalent circuit and inductance; 2.3 Stored magnetic energy and force
2.4 Radial magnetic bearing 2.5 Unbalance pull force; 2.6 Block diagram and mechanical system; Reference; 3. Magnetic bearing controllers; 3.1 Design principles in one-axis magnetic suspension; 3.2 Adjustment of PID gains; 3.3 Interference in two perpendicular axes; 3.4 Unbalance force and elimination; 3.5 Eccentric displacement; 3.6 Synchronized displacement suppression; 4. Mechanical dynamics; 4.1 Two-axis system; 4.2 Four-axis and five-axis systems; 4.3 Thrust magnetic bearing and requirement of five-axis suspension; References; 5. Power electronic circuits for magnetic bearings 5.1 Structure and principles of power electronic circuits 5.2 PWM operation; 5.3 Current feedback; 5.4 Current driver operating area; 5.5 Power devices and gate drive circuits; 6. Primitive model and control strategy of bearingless motors; 6.1 Principles of radial force generation; 6.2 Two-pole bearingless motor; 6.3 MMF and permeance; 6.4 Magnetic potential and flux distribution; 6.5 Inductance matrix; 6.6 Radial force and current; 6.7 The dc excitation of the primitive bearingless motor; 6.8 AC excitation and revolving magnetic field; 6.9 Inductance measurements 7. Analysis in rotational coordinates and magnetic suspension strategy for bearingless drives with 2-pole and 4-pole windings 7.1 Vector control theory of electrical motors; 7.2 Coordinate transformation and torque regulation; 7.3 Vector control theory in bearingless motors; 7.4 Coordinate transformation from dc to ac bearingless machines; 7.5 System block diagrams of bearingless machines; References; 8. Field orientation, VA requirement and magnetic saturation; 8.1 Misalignment of field orientation; 8.2 VA requirement; 8.3 Magnetic saturation; References 9. Cylindrical permanent magnet synchronous bearingless motors 9.1 Structure of surface permanent magnet (SPM) rotor; 9.2 Radial suspension force and suspension winding current; 9.3 Equations of voltage and current; 9.4 Guideline for permanent magnet thickness and airgap length; 9.5 Irreversible permanent magnet demagnetization and MMF limitations of stator windings; 9.6 Control system configuration; References; 10. Inset types of permanent magnet bearingless motor; 10.1 Structure and features of an inset type of permanent magnet rotor; 10.2 Mutual interference between radial suspension forces 10.3 Rotor position control strategy |
| Record Nr. | UNINA-9910784326803321 |
| Amsterdam ; ; London, : Elsevier/Newnes, 2005 | ||
| Materiale a stampa | ||
| Lo trovi qui: Univ. Federico II | ||
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Magnetic bearings and bearingless drives / / Akira Chiba ... [et al.]
| Magnetic bearings and bearingless drives / / Akira Chiba ... [et al.] |
| Edizione | [1st edition] |
| Pubbl/distr/stampa | Amsterdam ; ; London, : Elsevier/Newnes, 2005 |
| Descrizione fisica | 1 online resource (400 p.) |
| Disciplina | 621.822 |
| Altri autori (Persone) | ChibaAkira <1938-> |
| Soggetto topico |
Magnetic bearings
Power transmission |
| ISBN |
9786611009021
9781281009029 1281009024 9780080478975 0080478972 |
| Formato | Materiale a stampa |
| Livello bibliografico | Monografia |
| Lingua di pubblicazione | eng |
| Nota di contenuto |
Cover; Front matter; Half Title Page; Title Page; Copyright; Contents; List of Contributors; Foreword; Preface; Acknowledgements; 1. Introduction; 1.1 Magnetic bearing and motor drive; 1.2 Bearingless drives; 1.3 Definition and related technologies; 1.4 Early developments; 1.5 Bearingless structures; 1.6 Comparisons; 1.7 Winding structures; 1.8 Applications; References; 2. Electro-magnetics and mathematical model of magnetic bearings; 2.1 Electro-mechanical structure and operating principles; 2.2 Electric equivalent circuit and inductance; 2.3 Stored magnetic energy and force
2.4 Radial magnetic bearing 2.5 Unbalance pull force; 2.6 Block diagram and mechanical system; Reference; 3. Magnetic bearing controllers; 3.1 Design principles in one-axis magnetic suspension; 3.2 Adjustment of PID gains; 3.3 Interference in two perpendicular axes; 3.4 Unbalance force and elimination; 3.5 Eccentric displacement; 3.6 Synchronized displacement suppression; 4. Mechanical dynamics; 4.1 Two-axis system; 4.2 Four-axis and five-axis systems; 4.3 Thrust magnetic bearing and requirement of five-axis suspension; References; 5. Power electronic circuits for magnetic bearings 5.1 Structure and principles of power electronic circuits 5.2 PWM operation; 5.3 Current feedback; 5.4 Current driver operating area; 5.5 Power devices and gate drive circuits; 6. Primitive model and control strategy of bearingless motors; 6.1 Principles of radial force generation; 6.2 Two-pole bearingless motor; 6.3 MMF and permeance; 6.4 Magnetic potential and flux distribution; 6.5 Inductance matrix; 6.6 Radial force and current; 6.7 The dc excitation of the primitive bearingless motor; 6.8 AC excitation and revolving magnetic field; 6.9 Inductance measurements 7. Analysis in rotational coordinates and magnetic suspension strategy for bearingless drives with 2-pole and 4-pole windings 7.1 Vector control theory of electrical motors; 7.2 Coordinate transformation and torque regulation; 7.3 Vector control theory in bearingless motors; 7.4 Coordinate transformation from dc to ac bearingless machines; 7.5 System block diagrams of bearingless machines; References; 8. Field orientation, VA requirement and magnetic saturation; 8.1 Misalignment of field orientation; 8.2 VA requirement; 8.3 Magnetic saturation; References 9. Cylindrical permanent magnet synchronous bearingless motors 9.1 Structure of surface permanent magnet (SPM) rotor; 9.2 Radial suspension force and suspension winding current; 9.3 Equations of voltage and current; 9.4 Guideline for permanent magnet thickness and airgap length; 9.5 Irreversible permanent magnet demagnetization and MMF limitations of stator windings; 9.6 Control system configuration; References; 10. Inset types of permanent magnet bearingless motor; 10.1 Structure and features of an inset type of permanent magnet rotor; 10.2 Mutual interference between radial suspension forces 10.3 Rotor position control strategy |
| Record Nr. | UNINA-9910961540403321 |
| Amsterdam ; ; London, : Elsevier/Newnes, 2005 | ||
| Materiale a stampa | ||
| Lo trovi qui: Univ. Federico II | ||
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