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FAULT DIAGNOSIS OF PERMANENT MAGNET SYNCHRONOUS MOTOR BASED ON MECHANICAL AND MAGNETIC CHARACTERISTIC ANALYSIS

FAULT DIAGNOSIS OF PERMANENT MAGNET SYNCHRONOUS MOTOR BASED ON MECHANICAL AND MAGNETIC CHARACTERISTIC ANALYSIS

FAULT DIAGNOSIS OF PERMANENT MAGNET SYNCHRONOUS MOTOR BASED ON MECHANICAL AND MAGNETIC CHARACTERISTIC ANALYSIS

... FAULT DIAGNOSIS OF PERMANENT MAGNET SYNCHRONOUS MOTOR BASED ON MECHANICAL AND MAGNETIC CHARACTERISTIC ANALYSES YU YINQUAN A THESIS SUBMITTED FOR THE DEGREEM OF DOCTOR OF PHILOSOPHY ... COMPUTATION OF UNBALANCED MAGNETIC PULL AND MECHANICAL UNBALANCED FORCE IN MOTOR 64 5.1 Fundamental theory of electromagnetic force calculation 64 5.2 Introduction of Finite Element Method on Magnetic ... INTRODUCTION and motor fault type and fault position can be indicated precisely Numerous studies have been done on the motor fault analysis using vibration signals Mathematical Model of Permanent Magnet...
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Use of an extension of the park's transformation to determine control laws applied to a non sinusoidal permanent magnet synchronous motor

Use of an extension of the park's transformation to determine control laws applied to a non sinusoidal permanent magnet synchronous motor

... knowledge of the non sinusoidal permanent magnet synchronous motor We are so able as well to analyse the classical control laws such as 120' voltage control for example, as to deduce of this new ... electromotiveforces, the motor being not supply Park's transformation AAer this first transfoxmation, the Pa& transfomation allows us to work in the rotor's reference, through a rotation of an angle PO.Using the ... PROPOSAL OF AN EXTENSION OF THE PARK'S TRANSFORMATION Classical Park's transformation is in fact the succession of two transfomations The torque is then given by: T, = p.(@~,.io+@'did+@'q.iq) For a...
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Standards for efficiency of electric motors   permanent magnet synchronous motor technology

Standards for efficiency of electric motors permanent magnet synchronous motor technology

... and R McElveen, “InIMPORTANCE OF duction vs permanent magnet motors, ” IEEE now profit from the advantages of PM Ind Applicat Mag., vol 15, no 6, pp 28–35, motors For single-speed applications, ... high motor efficiency when the motor is designed for and operated at 60 Hz instead of 50 Hz The difference in efficiency between 50 and 60 Hz varies with the number of poles and the size of the motor ... 0.1 10 Motor- Rated Power (kW) 100 IE3 Efficiency Levels for 50 Hz IE3 Efficiency Levels for 60 Hz Adapted Ultrapremium Efficiency Levels for 50 Hz Commercial Ultrapremium Efficiency Levels for 60...
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Analysis, design and control of permanent magnet synchronous motors for wide speed operation

Analysis, design and control of permanent magnet synchronous motors for wide speed operation

... Torque performance of SVM based DTC and Current Control for a wide speed operation 169 6.26 Power performance of SVM based DTC and Current Control for a wide speed operation ... Control of IPMSM in Wide Speed Operation 24 Outline of the Thesis 25 Analysis of Interior Permanent Magnet Synchronous Motors for Wide- Speed Operation ... presents aspects of analysis, design and control of permanent magnet synchronous motors (PMSMs) for wide- speed operations An analytical method has been developed based on d- and q- axis equivalent...
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Design optimization of permanent magnet synchronous motors using response surface analysis and genetic algorithm

Design optimization of permanent magnet synchronous motors using response surface analysis and genetic algorithm

... The development of Permanent Magnet Machines 1.1.2 Features of permanent magnet motors Permanent magnet synchronous motors iii 1.2.1 Structures and operating principles ... with the analysis and design of buried type Interior Permanent Magnet Synchronous Motors (IPMSM) The objective is to develop a design optimization procedure for this type of motors that is more ... List of Figures 1.1 Magnetic characteristics of the main class of permanent magnets [2] 1.2 Evolution of the magnetic material during the 20th century [2] 1.3 Partial demagnetization of a permanent...
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AN1292 sensorless field oriented control (FOC) for a permanent magnet synchronous motor (PMSM) using a PLL estimator and field weakening (FW)

AN1292 sensorless field oriented control (FOC) for a permanent magnet synchronous motor (PMSM) using a PLL estimator and field weakening (FW)

... certification for its worldwide headquarters, design and wafer fabrication facilities in Chandler and Tempe, Arizona; Gresham, Oregon and design centers in California and India The Company’s quality ... the motors’ characteristic parameters implied in the control of the air gap field weakening The effect of the armature d-axis current over the air gap field weakening depends on the shape and magnetic ... SHALL NOT, IN ANY CIRCUMSTANCES, BE LIABLE FOR SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES, FOR ANY REASON WHATSOEVER All of the software covered in this application note is available as a single...
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research on fabrication and the physical properties of the multi-component ceramics based on pzt and the relaxor ferroelectric materials

research on fabrication and the physical properties of the multi-component ceramics based on pzt and the relaxor ferroelectric materials

... applications From the above fact, we have chosen dissertation topic is Research on fabrication and the physical properties of the multi-component ceramics based on PZT and the relaxor ferroelectric materials ... study the effect of Zr/Ti ratio in PZT on the structure, and the properties of the PZT - PZN - PMnN ceramics, determine PZT content which ceramics have good electrical properties and the relaxor ferroelectric ... physical properties of the multi-component ceramics based on PZT and the relaxor ferroelectric materials, Pb(Zn1/3Nb2/3)O3 and Pb(Mn1/3Nb2/3)O3 The results of the thesis will open up prospects for the...
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09 - personalized email prioritization based on content and social network analysis

09 - personalized email prioritization based on content and social network analysis

... agent -based simulation and counterterrorism, defense modeling, and simulation Moon has a PhD in computation, organization, and society from Carnegie Mellon University Contact him at icmoon@smslab.kaist.ac.kr ... al., “The Social Network and Relationship Finder: Social Sorting for Email Triage,” Proc Conf E-mail and Anti-Spam, 2005; http://www.ceas.cc/2005/papers/149.pdf L Johansen, M Rowell, and P McDaniel, ... frequencies and importance of messages, while conventional link -analysis methods use only one type of directed link More importantly, we focus on effectively using a partially labeled personal email network...
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fault diagnosis of induction motors using signal processing based methods and optimal feature selection

fault diagnosis of induction motors using signal processing based methods and optimal feature selection

... 진단 Fault Diagnosis of Induction Motors using Signal Processing based Methods and Optimal Feature Selection 지도교수 이홍희 이 논문을공학박사학위 논문으로 제출함 2008 년 12 월 울산대학교 대학원 전기전자정보시스템공학부 웬옥투 Fault Diagnosis of ... Diagnosis of Induction Motors using Signal Processing based Methods and Optimal Feature Selection Ngoc-Tu Nguyen A thesis submitted to the School of Electrical Engineering in fulfillment of the thesis ... faults, signal based processing methods for monitoring the condition of induction motor, the optimal feature selection using distance based criterion is considered to remove the irrelevant and redundant...
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Computational analysis of a permanent magnet synchronous machine using numerical techniques

Computational analysis of a permanent magnet synchronous machine using numerical techniques

... is vital to machine analysis as it is a fast and low-cost way of predicting machine performances Traditional analytical methods, such as lumped parameter models are computationally fast and simple ... It also deals with the parameter estimation of permanent magnet synchronous machines using both experimental and computational methods A line-start interior permanent magnet synchronous machine ... Permanent Magnets The properties and performances of a permanent magnet machine are greatly affected by the characteristics of permanent magnets Therefore proper representation of permanent magnet...
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Numerical analysis of a brushless permanent magnet DC motor using coupled systems

Numerical analysis of a brushless permanent magnet DC motor using coupled systems

... to characterize the material Another type of material that is characterized by a broad hysteresis loop is called hard magnetic material 1.3.1 Hard magnetic materials (Permanent magnets) Permanent ... commutator motor: The construction of a permanent magnet DC motor( PMDC) is similar to a DC conventional motor with the electromagnetic excitation system replaced by permanent magnets A PMDC commutator ... have made using BLDC motor a viable alternative The developments and applications of the BLDC motors have been greatly accelerated by improvements in permanent magnet materials, especially rare-earth...
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Strategy for the instantaneous torque control of permanent magnet brushless DC drives2

Strategy for the instantaneous torque control of permanent magnet brushless DC drives2

... the DSP controller together with the inner loop controller Both the sinusoidal current control and the instantaneous torque control are tested with the speed controller The time response of the ... simulated torque from the motor model is used as the feedback torque signal, i.e the feedback is ideal Therefore, the simulated performance of the controller depends solely on the control algorithm ... eliminate torque pulsation by direct digital control of the inverters This paper describes the instantaneous torque control of a BLDC drive, with the objectives of minimisation of torque ripples...
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Chapter 14  permanent magnet AC motor drives

Chapter 14 permanent magnet AC motor drives

... torque may be instantaneously obtained Combining (14. 4-7), (14. 4-10)– (14. 4-12), (14. 4-19), (14. 11-7), and (14. 11-8) yields 578 PERMANENT- MAGNET AC MOTOR DRIVES ⎡ rrl ⎢ − Lrl ⎢ ˆ ⎡ ir ⎤ ⎢ ⎢ ⎥ ⎢ ˆ ⎢ ... triangle-modulated, or space-vector-modulated inverter to an idealized source is established 544 PERMANENT- MAGNET AC MOTOR DRIVES The six-stepped inverter-based permanent- magnet ac motor drive is the ... 300 , rad/s Figure 14. 6-3 Start-up performance of a sine-triangle-modulated permanent- magnet ac motor drive as calculated using a linearized model 562 PERMANENT- MAGNET AC MOTOR DRIVES 200 vdc,...
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Báo cáo hóa học:

Báo cáo hóa học: "Fault diagnosis of Tennessee Eastman process using signal geometry matching technique" ppt

... this article as: Li and Xiao: Fault diagnosis of Tennessee Eastman process using signal geometry matching technique EURASIP Journal on Advances in Signal Processing 2011 2011:83 Submit your manuscript ... diagnosis using PC1DARMF algorithm 3.1 Introduction to Tennessee Eastman process (TEP) Tennessee Eastman process is first proposed by Downs and Vogel [12] to provide a simulated model of real industrial ... TriWave Page of 19 unrecognized noised signal and a certain number of reference signals (also known as signal templates) as supervisory signals, 1DARMF may be capable of achieving signal recognition...
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Sensorless drives for permanent magnet synchronous motors

Sensorless drives for permanent magnet synchronous motors

... and its ZCP waveforms based on modified algorithm Captured voltage and current waveforms for VDC = 5V Captured voltage and current waveforms for VDC = 8.48V Captured waveforms for VDC = 8.48V ... drive is conventionally applied on BLDC motors, a class of permanent magnet motors with trapezoidal back-EMFs, for smooth torque production In three phase BLDC drives, the motor is typically driven ... proposed for BLDC motors [19], motors with trapezoidal back-EMFs which have been extended to PMSM [22] The back-EMFs for these motors contain a third harmonic component which can be utilized for the...
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