Hysteresis

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Hysteresis refers to systems that may exhibit path dependence, or "rate-independent memory". (Wikipedia.org)






Conferences related to Hysteresis

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2020 IEEE 16th International Workshop on Advanced Motion Control (AMC)

AMC2020 is the 16th in a series of biennial international workshops on Advanced Motion Control which aims to bring together researchers from both academia and industry and to promote omnipresent motion control technologies and applications.


2020 IEEE International Magnetic Conference (INTERMAG)

INTERMAG is the premier conference on all aspects of applied magnetism and provides a range of oral and poster presentations, invited talks and symposia, a tutorial session, and exhibits reviewing the latest developments in magnetism.


2020 Joint Conference of the IEEE International Frequency Control Symposium and International Symposium on Applications of Ferroelectrics (IFCS-ISAF)

Ferroelectric materials and applications


2019 21st European Conference on Power Electronics and Applications (EPE '19 ECCE Europe)

Energy conversion and conditioning technologies, power electronics, adjustable speed drives and their applications, power electronics for smarter grid, energy efficiency,technologies for sustainable energy systems, converters and power supplies


2019 IEEE 58th Conference on Decision and Control (CDC)

The CDC is recognized as the premier scientific and engineering conference dedicated to the advancement of the theory and practice of systems and control. The CDC annually brings together an international community of researchers and practitioners in the field of automatic control to discuss new research results, perspectives on future developments, and innovative applications relevant to decision making, systems and control, and related areas.The 58th CDC will feature contributed and invited papers, as well as workshops and may include tutorial sessions.The IEEE CDC is hosted by the IEEE Control Systems Society (CSS) in cooperation with the Society for Industrial and Applied Mathematics (SIAM), the Institute for Operations Research and the Management Sciences (INFORMS), the Japanese Society for Instrument and Control Engineers (SICE), and the European Union Control Association (EUCA).


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Periodicals related to Hysteresis

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Applied Superconductivity, IEEE Transactions on

Contains articles on the applications and other relevant technology. Electronic applications include analog and digital circuits employing thin films and active devices such as Josephson junctions. Power applications include magnet design as well asmotors, generators, and power transmission


Automatic Control, IEEE Transactions on

The theory, design and application of Control Systems. It shall encompass components, and the integration of these components, as are necessary for the construction of such systems. The word `systems' as used herein shall be interpreted to include physical, biological, organizational and other entities and combinations thereof, which can be represented through a mathematical symbolism. The Field of Interest: shall ...


Circuits and Systems for Video Technology, IEEE Transactions on

Video A/D and D/A, display technology, image analysis and processing, video signal characterization and representation, video compression techniques and signal processing, multidimensional filters and transforms, analog video signal processing, neural networks for video applications, nonlinear video signal processing, video storage and retrieval, computer vision, packet video, high-speed real-time circuits, VLSI architecture and implementation for video technology, multiprocessor systems--hardware and software-- ...


Circuits and Systems II: Express Briefs, IEEE Transactions on

Part I will now contain regular papers focusing on all matters related to fundamental theory, applications, analog and digital signal processing. Part II will report on the latest significant results across all of these topic areas.


Communications, IEEE Transactions on

Telephone, telegraphy, facsimile, and point-to-point television, by electromagnetic propagation, including radio; wire; aerial, underground, coaxial, and submarine cables; waveguides, communication satellites, and lasers; in marine, aeronautical, space and fixed station services; repeaters, radio relaying, signal storage, and regeneration; telecommunication error detection and correction; multiplexing and carrier techniques; communication switching systems; data communications; and communication theory. In addition to the above, ...


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Most published Xplore authors for Hysteresis

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Xplore Articles related to Hysteresis

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Discussion on “the effect of iron in distorting alternating-current wave-form” at New York, September 28, 1906

[] Proceedings of the American Institute of Electrical Engineers, 1906

Charles Proteus Steinmetz: This paper deals with the wave-shape distortion produced in alternating-current circuits by the introduction of iron. It is a theoretical paper, and while of scientific interest appears at first of rather little-practical value to the electrical engineer. There is, however, to-day only a very short step between pure scientific investigation and engineering practice; and I hope to ...


The effect of iron in distorting alternating-current wave form

[{u'author_order': 1, u'full_name': u'Frederick Bedell'}, {u'author_order': 2, u'full_name': u'Elbert B. Tuttle'}] Proceedings of the American Institute of Electrical Engineers, 1906

It is well known that in a circuit containing no iron an impressed sinusoidal electromotive force will cause a sinusoidal current to flow, the current lagging behind the impressed electromotive force by an amount depending upon the relative values of the resistance and inductance, which in this case is constant. Assuming inductance alone in the circuit, the sine current which ...


Discussion on “the magnetic properties of some iron Alloys Melted in Vacuo” (Yensen), St. Louis, Mo., October 20, 1915. (see proceedings for October, 1915)

[] Proceedings of the American Institute of Electrical Engineers, 1916

Thomas Spooner: The Burrows permeability apparatus we have used in our commercial testing for some years, and found it very satisfactory, especially when used in connection with the Grassot flux-meter. The apparatus has given us very accurate checks for the Bureau of Standards certified rods. We, of course, have not had occasion to test samples of permeability of 60,000 to ...


Theory of hysteresis-motor torque

[{u'author_order': 1, u'affiliation': u'Carnegie Institute of Technology, Pittsburgh, Pa.', u'full_name': u'B. R. Teare'}] Electrical Engineering, 1940

THE object of this study is the development of a quantitative theory of hysteresis-motor torque, especially in relation to magnetic properties and dimensions. The theory is interpreted physically in an idealized case, and applied to a particular motor to verify the result experimentally.


Discussion on “comparison of two- and three-phase motors,” at Milwaukee, Wis., May 28, 1906

[] Proceedings of the American Institute of Electrical Engineers, 1906

A. S. McAllister: The author says that the magnetizing current in a three- phase motor is approximately 15 per cent. more than that in a two-phase motor, but that when expressed in per cent. of the full load current the magnetizing currents of the two motors are equal. These statements are based on a study of the distribution of the ...


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Educational Resources on Hysteresis

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eLearning

No eLearning Articles are currently tagged "Hysteresis"

IEEE-USA E-Books

  • Magnetic Circuits and Transformers

    This chapter contains basic concepts that can be used for all rotating machines and for power transformers. It presents a more complete analysis and more detailed circuit models of real-life transformers. When the transformer operates in sinusoidal steady state, the corresponding phasor circuit can be used to analyse it. Three-phase transformers can have different construction modes. The chapter briefly presents only the transformers created as a three- phase bank of single-phase transformers. Magnetic hysteresis is important also from an energy point of view: it can be demonstrated that hysteresis phenomenon implies loss of energy in the magnetic circuit of the transformer, which reduces efficiency and heats the iron.

  • Appendix C: Definitions

  • Definitions and Units

    This chapter contains sections titled: * Introduction * The cgs-emu System of Units * Magnetic Moment * Intensity of Magnetization * Magnetic Dipoles * Magnetic Effects of Currents * Magnetic Materials * SI Units * Magnetization Curves and Hysteresis Loops

  • Magnetic Core Loss

    This chapter focuses on calculating the losses within a magnetic material. These losses arise from several causes. Eddy currents induced by the time rate of change of flux in the material are one source of loss. A second source of loss is magnetic hysteresis, which is associated with the non-uniquely valued relationship between flux density and field intensity. The chapter considers a variety of empirical or behavioral approaches to modeling core loss. These are based on representing observed behavior in a mathematical form using curve fitting. The chapter also considers some other approaches to the modeling of hysteresis behavior. These include Jiles-Atherton model and the Preisach model. These are time domain models that predict the specific B-H trajectory. They offer significantly more information than the empirical models.

  • Microwave Switching Using Junction Circulators

    Switching is achieved by replacing the permanent magnet by an electromagnet or by latching the microwave ferrite resonator directly by embedding a current carrying wire loop within the resonator. This chapter separately illustrates two common arrangements in which ferrite circulators may be employed to obtain microwave switching. The waveguide junction switch is usually but not exclusively based on a Faraday rotation effect along a quarter‐wave long cavity resonator open‐circuited at one flat face and short‐circuited at the other. The direct magnetic field in a junction circulator can be established using either an external electromagnet or it can be switched by current pulses through a magnetizing wire between the two remanent states of the major or indeed of a minor hysteresis loop of a closed magnetic circuit. One way to explore the internal direct magnetization of the magnetic insulator in the presence of one or more loops is to have recourse to a magnetostatic solver.

  • Calculation of Induction Machine Losses

    The computation of losses is the most difficult and challenging aspect of machine design. The power losses in an induction motor can be relegated to five elements. Stator conductor loss, rotor conductor loss, iron loss, stray‐load loss, friction and windage loss. The increase of rotor resistance has a beneficial effect in aiding starting capability of squirrel‐cage induction machines and nearly all conventional machine designs enhance motor starting capability by specially selected rotor bar shapes. The calculation of iron losses associated with the rotor teeth are again found by adding up the losses in each rotor tooth, properly weighting the terms by the sine of the location of the tooth with respect to a pole pitch. The windage losses are produced by rotation and depend upon the peripheral speed of the rotor, the rotor diameter, the core length and generally upon the construction of the machine.

  • Control Strategies for Power Converters

    This chapter deals with the control actions needed to keep a specific variable of the converter under control, for instance, in a motor drive system where the speed must be controlled electronically through a power converter, or in a circuit designed to correct the power factor actively. It presents some principles of the controllers for systems using power converters as actuators. The chapter also deals with a nonlinear control technique called hysteresis control, and highlights some advantages and disadvantages of this technique. It considers two applications: dc motor drive system and regulation of an ac variable. The classic linear controllers (P, PI, and PID) are presented for dc variables. The chapter presents a linear type of controller for ac variables. A more complex control technique is presented with a cascade strategy for systems dealing with control of two variables with different dynamic responses.

  • Rotor and Stator Laminated Cores

    This chapter discusses rotor and stator cores and, in particular, steel lamination and insulation on these laminations, as well as how the laminations are fabricated into cores. It restricts the materials, processes, and insulation of laminated stator and rotor cores, that is, electromagnet application. Magnetic fields are characterized by the magnetic flux, the magnetic flux density or B, and the magnetic field intensity or H. The latter is called the magnetomotive force or mmf when the field is generated by an electromagnet. Laser cutting is also used for limited new production and prototypes, for modifications of laminations from existing dies or punched stock, and to replace damaged laminations during core repairs. The annealing is carried out in an inert atmosphere to prevent oxidation of the metal surface. Burr removal is often done by a grinding or sanding operation that also leaves some bare metal where the burrwas removed.

  • HBFEM for Nonlinear Magnetic Field Problems

    This chapter discusses mainly the numerical modeling and analysis of electromagnetic fields in switching power supplies. It uses harmonic balance analysis, combined with the finite element method (FEM), to solve problems arising from non-linear, harmonic, eddy-current and power loss problems of transformers used in switching power supplies. The chapter also discusses the harmonic balance-FEM (HBFEM) model and computed results, compared with experimental results. The harmonic components of current and magnetic flux can help to accurately analyze and design the magnetic core and winding structures, and further determine the power loss and leakage flux in the magnetic system. The numerical model of voltage excitation with a nonlinear magnetic field is more accurate than conventional magnetic field-only analysis. The EM full wave solution can be obtained from HBFEM based numerical computation. To verify the HBFEM based solution, a single-phase direct current (DC)-biased switching transformer with a voltage source driven model is used.

  • Magnetic Actuator Transient Operation

    This chapter discusses the transient effects of turning on (or off) the direct current (DC) and alternating current (AC) currents or voltages. The basic timeline for transient operation of magnetic actuators consists of many steps. For many applications, a time delay slows the speed of response. The steps discussed in the chapter are: (i) the magnetic flux density rises, partly determined by a time constant called the magnetic diffusion time or nonlinear infusion time; (ii) the force rises as the magnetic flux density rises; (iii) the force produces acceleration of the armature and/or attached mass; and (iv) after a certain time, during which the armature may or may not reach the end of its stroke, the energizing circuit may be turned off; if the current suddenly becomes zero, then the magnetic flux density (and related force) falls, partly determined by the magnetic diffusion time or nonlinear effusion time.



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