Stator

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The stator is the stationary part of a rotor system, found in an electric generator, electric motor and biological rotors. (Wikipedia.org)






Conferences related to Stator

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IECON 2014 - 40th Annual Conference of the IEEE Industrial Electronics Society

Applications of power electronics, artificial intelligence, robotics, and nanotechnology in electrification of automotive, military, biomedical, and utility industries.


2012 IEEE Student Conference on Research and Development (SCOReD)

Communication, RF & Microwave, Lasers & Optics, Computing, Control & Robotics, Power&Energy, Electronics, Biomedical Engineering & Science, Circuit, System & Instrumentation, Computational Intelligence, and Humanitarian Technology.

  • 2011 IEEE Student Conference on Research and Development (SCOReD)

    - Automation, Mechatronics & Robotics - Business, Management & Finance in Industries - Computer Applications - Electronics & Circuits - Engineering Education - Engineering Management - Lasers & Optics - Network & Communications Technology - Power & Energy - RF and Microwave - Signal & Image Processing - Women in Engineering

  • 2010 Student Conference on Research and Development (SCOReD)

    A. Communication Communication and Networks Image and Speech Processing Security B. Computing Artificial Intelligence and Fussy Systems Microprocessor Optimization Techniques Soft Computing, Parallel Processing C. Control and Robotics Manufacturing Technology & Management Mechatronics and Sensors Process Control Robotics , Automation and Instrumentation D. Electronics and Circuits Biomedical Consumer and Industrial Electronics Microelectronics, MEMS Te

  • 2009 7th Student Conference on Research and Development (SCOReD)

    All aspects of Electrical Engineering. Technical Tracks: Communication, Computing, Control and Robotics, Electronic and Circuits, Lasers and Optics, Power and Energy, RF and Microwaves, Women in Engineering, Engineering Education

  • 2008 Regional Student Conference on Research and Development (SCOReD)

    All aspects of Electrical Engineering. Technical Tracks: Communication; Computing; Control and Robotics; Electronics and Circuits; Lasers and Optics; Power and Energy; RF and Microwaves; Women in Engineering; Engineering Education.

  • 2007 5th Student Conference on Research and Development (SCOReD)

    Power System, Energy, Communication, Control System, Electronics, Computing


2012 International Symposium on Power Electronics, Electrical Drives, Automation and Motion (SPEEDAM 2012)

Speedam is a place where experts of industrial and academic world can discuss together with user about recent developments and trends in the field of Power Electronics, Electrical Drives, Automation, Electrical Energy Management, Power Quality, Transportation. Within these areas, Speedam is aimed to identify relevant applications evidencing main problems and strategies.



Periodicals related to Stator

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Industrial Electronics, IEEE Transactions on

Theory and applications of industrial electronics and control instrumentation science and engineering, including microprocessor control systems, high-power controls, process control, programmable controllers, numerical and program control systems, flow meters, and identification systems.



Most published Xplore authors for Stator

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Xplore Articles related to Stator

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Dynamic and steady state modelling of brushless doubly fed induction machines

G. Boardman; J. G. Zhu; Q. P. Ha Electrical Machines and Systems, 2001. ICEMS 2001. Proceedings of the Fifth International Conference on, 2001

This paper addresses issues of the modelling of the doubly fed twin stator induction machine, using space phasors. Dynamic and steady state models are included both in the voltage and current controlled modes


Contributions regarding operation of induction machine supplied with two frequencies

Aurel Campeanu; Radu Munteanu; Adrian Graur; Gheorghe Liuba 2015 9th International Symposium on Advanced Topics in Electrical Engineering (ATEE), 2015

Supply of an induction machine with two frequencies in stator is a method of thermic verification (Ytterberg) for factories. For establishing the most suitable values for voltages and frequencies of two sources, a detailed analysis of the corresponding electric and magnetic stresses of induction machine is necessary. The simulations provide detailed coherent information, difficult or impossible to be obtained experimentally.


Torque optimization analysis with magnetic saturation models for induction machines

Dewei Xu; Dongqi Zhu; Xinjian Jiang Proceedings IPEMC 2000. Third International Power Electronics and Motion Control Conference (IEEE Cat. No.00EX435), 2000

A new model based on MT synchronous rotating frame of induction machines with magnetic saturation is developed. In this model, it is assumed that the saturated area mainly on the M-axis and the undersaturated magnetic path is kept when stator and rotor currents make balanced MMF. This assumption is proved by finite element analysis (FEA). The result is the suitable ...


Current Sheets Equivalent to End-Winding Currents of Turbine-Generator Stator and Rotor

J. A. Tegopoulos Transactions of the American Institute of Electrical Engineers. Part III: Power Apparatus and Systems, 1962

The steady-state end-winding current distribution of turbine generators is replaced by appropriate current sheets of the sinusoidal type. By assuming that the end-winding coils of stator and rotor close through the air gap, their respective current distributions are represented by systems of closed currents. Then, the total current distributions for stator and rotor are each separated into four components; peripheral, ...


Monitoring of stator inter-turn short circuits in the direct field oriented controlled induction motor

Marcin Wolkiewicz; Grzegorz Tarchała; Czesław T. Kowalski 2014 16th International Power Electronics and Motion Control Conference and Exposition, 2014

This paper deals with monitoring and diagnosis of stator windings damages in vector-controlled induction motor (IM) drive. The article proposes a simple method of shorted turns detection using only virtual control and decoupling signals from the classical Direct Field Oriented Control (DFOC) method. The diagnosis of the stator windings faults is based on the analysis of twice the fundamental frequency ...


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Educational Resources on Stator

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eLearning

Dynamic and steady state modelling of brushless doubly fed induction machines

G. Boardman; J. G. Zhu; Q. P. Ha Electrical Machines and Systems, 2001. ICEMS 2001. Proceedings of the Fifth International Conference on, 2001

This paper addresses issues of the modelling of the doubly fed twin stator induction machine, using space phasors. Dynamic and steady state models are included both in the voltage and current controlled modes


Contributions regarding operation of induction machine supplied with two frequencies

Aurel Campeanu; Radu Munteanu; Adrian Graur; Gheorghe Liuba 2015 9th International Symposium on Advanced Topics in Electrical Engineering (ATEE), 2015

Supply of an induction machine with two frequencies in stator is a method of thermic verification (Ytterberg) for factories. For establishing the most suitable values for voltages and frequencies of two sources, a detailed analysis of the corresponding electric and magnetic stresses of induction machine is necessary. The simulations provide detailed coherent information, difficult or impossible to be obtained experimentally.


Torque optimization analysis with magnetic saturation models for induction machines

Dewei Xu; Dongqi Zhu; Xinjian Jiang Proceedings IPEMC 2000. Third International Power Electronics and Motion Control Conference (IEEE Cat. No.00EX435), 2000

A new model based on MT synchronous rotating frame of induction machines with magnetic saturation is developed. In this model, it is assumed that the saturated area mainly on the M-axis and the undersaturated magnetic path is kept when stator and rotor currents make balanced MMF. This assumption is proved by finite element analysis (FEA). The result is the suitable ...


Current Sheets Equivalent to End-Winding Currents of Turbine-Generator Stator and Rotor

J. A. Tegopoulos Transactions of the American Institute of Electrical Engineers. Part III: Power Apparatus and Systems, 1962

The steady-state end-winding current distribution of turbine generators is replaced by appropriate current sheets of the sinusoidal type. By assuming that the end-winding coils of stator and rotor close through the air gap, their respective current distributions are represented by systems of closed currents. Then, the total current distributions for stator and rotor are each separated into four components; peripheral, ...


Monitoring of stator inter-turn short circuits in the direct field oriented controlled induction motor

Marcin Wolkiewicz; Grzegorz Tarchała; Czesław T. Kowalski 2014 16th International Power Electronics and Motion Control Conference and Exposition, 2014

This paper deals with monitoring and diagnosis of stator windings damages in vector-controlled induction motor (IM) drive. The article proposes a simple method of shorted turns detection using only virtual control and decoupling signals from the classical Direct Field Oriented Control (DFOC) method. The diagnosis of the stator windings faults is based on the analysis of twice the fundamental frequency ...


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IEEE.tv Videos

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IEEE-USA E-Books

  • New Machine Winding and Rewind Specifications

    One of the most important factors to achieve long rotor and stator winding life is the purchase specification of the machine, or in the case of an older machine, the specification of the rewind. This chapter focuses on what could also be considered for inclusion in a purchase specification to achieve the desired life and reliability. Technical specifications for new stator and rotor windings and for the refurbishment/repair of existing stator and rotor windings should have some basic content other than technical requirements. The specific requirements that could be included in a technical specification for a new form-wound stator winding rated 3.3 kV and above, which should give assurance of reliable service over the required life is discussed in the chapter. It talks about the possible requirements for inclusion in technical specifications for new and replacement round rotor and salient pole rotor windings.

  • Power System Phenomena and their Impact on Relay System Performance

    This chapter contains sections titled: Power System Oscillations Leading to Simultaneous Tripping of Both Ends of a Transmission Line and the Tripping of One End Only on an Adjacent Line Generator Oscillations Triggered by a Combination of L-g Fault, Loss of Generation, and Undesired Tripping of Three 138-kV Lines Stable Power Swing Generated During Successful Synchronization of a 200-MW Unit Major System Disturbance Leading to Different Oscillations for Different Transmission Lines Emanating from the Same Substation Appearance of 120-Hz Current at a Generator Rotor During a High-Side Phase-to- Ground Fault Generator Negative-Sequence Current Flow During Unbalanced Faults Inadvertent (Accidental) Energization of a 170-MW Hydro Generating Unit Appearance of Third-Harmonic Voltage at Generator Neutral Variations of Generator Neutral Third-Harmonic Voltage Magnitude During System Faults Generator Active and Reactive Power Outputs During a GSU High-Side L-g Fault Loss of Excitation of a 200-MW Unit Generator Trapped (Decayed) Energy Nonzero Current Crossing During Faults and Mis-Synchronization Events Generator Neutral Zero-Sequence Voltage Coupling Through Step-Up Transformer Interwinding Capacitance During a High-Side Ground Fault Energizing a Transformer with a Fault on the High Side within the Differential Zone Transformer Inrush Currents Inrush Currents During Energization of the Grounded-Wye Side of a YG/Delta Transformer Inrush Currents During Energization of a Transformer Delta Side Two-Phase Energization of an Autotransformer with a Delta Winding Tertiary During a Simultaneous L-g Fault and an Open Phase Phase Shift of 30ï¿¿ï¿¿ Across the Delta/Wye Transformer Banks Zero-Sequence Current Contribution from a Remote Two-Winding Delta/YG Trans former Conventional Power-Regulating Transformer Core Type Acting as a Zero-Sequence Source Circuit Breaker Re-Strikes Circuit Breaker Pole Disagreement During a Closing Operation Circuit Breaker Opening Resistors Secondary Current Backfeeding to Breaker Failure Fault Detectors Magnetic Flux Cancellation Current Transformer Saturation Current Transformer Saturation During an Out-of-Step System Condition Initiated by Mis-Synchronization of a Generator Breaker Capacitive Voltage Transformer Transient Bushing Potential Device Transient During Deenergization of an EHV Line Capacitor Bank Breaker Re-Strike Following Interruption of a Capacitor Normal Current Capacitor Bank Closing Transient Shunt Capacitor Bank Outrush into Close-in System Faults SCADA Closing into a Three-Phase Fault Automatic Reclosing into a Permanent Line-to-Ground Fault Successful High-Speed Reclosing Following a Line-to-Ground Fault Zero-Sequence Mutual Coupling-Induced Voltage Mutual Coupling Phenomenon Causing False Tripping of a High-Impedance Bus Differential Relay During a Line Phase-to-Ground Fault Appearance of Nonsinusoidal Neutral Current During the Clearing of Three-Phase Faults Current Reversal on Parallel Lines During Faults Ferranti Voltage Rise Voltage Oscillation on EHV Lines Having Shunt Reactors at their Ends Lightning Strike on an Adjacent Line Followed by a C-g Fault Caused by a Separate Lightning Strike on the Monitored Line Spill Over of a 345-kV Surge Arrester Used to Protect a Cable Connection, Prior to its Failure Scale Saturation of an A/D Converter Caused by a Calibration Setting Error Appearance of Subsidence Current at the Instant of Fault Interruption Energizing of a Medium Voltage Motor that has an Incorrect Formation of the Stator Winding Neutral Phase Angle Change from Loading Condition to Fault Condition References

  • Core Lamination Insulation Failure and Repair

    This chapter discusses the most common causes of stator and rotor core failures in both induction and synchronous machines, together with proven repair methods. Degradation of the core condition due to the effects of thermal aging can occur in all rotating machine laminated cores. Electrical aging occurs when the voltage across the lamination insulation induced by magnetic fluxes, electromagnetic forces, or high ground-fault currents causes deterioration. The most common causes of mechanical degradation in cores are inadequate core pressure applied in manufacture, core pressure reduction in service due to relaxation of the core support structure, core vibration, back- of-core looseness, and mechanical damage causing smearing of the core surface at the bore. A number of different core insulation defects can be introduced during manufacture and these may not be detected if adequate quality assurance (QA) checks are not performed.

  • Acceptance and Site Testing of New Windings

    This chapter describes the main tests that are available for prequalifying manufacturer's insulation systems and assessing the quality of insulation in new windings, both in the manufacturer's plant and on-site. All of these tests are designed to help give assurance that stator and rotor windings in new machines and new replacement windings will give reliable service. For stator winding insulation systems rated at 3 kV and above, it is important to gain some assurance that an insulation system provided by the manufacturer will give a long life. The chapter deals with appropriate factory and on-site tests for all insulated rotor windings. It also covers tests for specific types of windings. It provides details on when the tests should be performed and how easy it is to perform them on-site.

  • General Principles of Winding Failure, Repair, and Rewinding

    This chapter describes why there are so many failure processes and what causes one process to dominate, eventually leading to failure. Also presented is information on how to select an appropriate repair method from all the possible options. As well, methods to make a machine operational after an in- service failure and how to determine if a rotor or stator rewind is to be undertaken are covered.

  • General Principles of Testing and Monitoring

    This chapter describes on-line and off-line tests and monitors that can be used on rotor and stator windings, as well as stator and rotor laminated cores. It discusses several issues that are common to all of the tests and monitors. There are over 40 different tests and monitors that can be used to diagnose motor and generator winding condition. Therefore, before the individual tests and monitors are discussed, the reasons why testing is done are reviewed and the concepts for selecting which tests and monitoring should be done are discussed. A visual inspection of the winding done by an expert is usually the most powerful tool for assessing the winding condition and determining the root cause of a developing problem. Expert system computer programs attempt to recreate the reasoning processes that an expert uses to interpret test results, as well as other relevant information.

  • The Electrical Drive Systems with the Current Source Converter

    The chapter presents two approaches to the control of electric machines supplied by the current source inverter. The first one is based on the current control and the second contains the voltage control which uses the multi???scalar variables. In the voltage control the current source inverter is treated as the commutator of the current in dc???link to the ac machine stator current. The dc???link current is proportional to module of the stator current. The inverter works in the constant modulation index, so the transistors conduction power losses can be limited. The multi???scalar voltage approach is applied to the squire???cage, doubly fed induction machine and the permanent magnet synchronous machine. All the mathematical investigations are supported by the simulation and experimental tests.

  • On Commutation

    This chapter contains sections titled: Generalities on Commutation, The Theorem on Commutation for Isotropic Machines, The First Theorem on Commutation for Anisotropic Machines, The Second Theorem on Commutation in Anisotropic Machines, Some Applications of the Three Theorems on Commutation, Action of the Stator Winding on Commutation of a Dynamo, On the Fluxes Acting on the Commutation of an Actual Dynamo, Generalizations of the Theorems for Anisotropic Machines, Device for Good Commutation in a Metadyne, Commutating Poles on Metadynes, Notes Concerning Anisotropic Metadynes

  • Core Testing

    This chapter describes the main tests that are commercially available for assessing rotor and stator core tightness and stator core insulation condition. We present and discuss the knife test, rated and reduced flux (EL- CID) tests, and the core loss test. For each test, the purpose is described, as well as the types of machines it is useful for. The theory of the test and its advantages and disadvantages are also covered. Finally, practical guidelines on performing the test and interpreting the results are given.

  • Stator Failure Mechanisms and Repair

    This chapter presents the main aging and failure mechanisms of stator windings, as well as the options associated with each mechanism for repairing the stator or altering its operation to extend winding life. The only failure mechanisms discussed here are those that are due to gradual aging of the winding. Each section will discuss the relevance of the failure process for both random- and form-wound stators. The symptoms for each failure mechanism are also described. These symptoms are observed with a visual examination of the winding (but no dissection of coils), and with some of the diagnostic tests described in a later chapter.



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