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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Condition monitoring and fault diagnosis of induction machine using artificial intelligence methods and empirical mode decomposition
... mathematical model of the machine and thereby using the model to analysis and predict fault mode [67-74] Finite element analysis is popular for simulating and studying of fault mode; especially ... approaches of this project to investigate the automatic fault diagnosis of AC synchronous machine In the next, the mechanics of machine fault mode is presented AC synchronous machine fault diagnosis ... voltages and currents of the induction motor This method is referenced from Peter Vas, “Parameter Estimation, Condition monitoring, and diagnosis of Electrical Machines” Using the dynamic model of...
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Condition monitoring and fault diagnosis of induction machine using artificial intelligence methods and empirical mode decomposition
... mathematical model of the machine and thereby using the model to analysis and predict fault mode [67-74] Finite element analysis is popular for simulating and studying of fault mode; especially ... approaches of this project to investigate the automatic fault diagnosis of AC synchronous machine In the next, the mechanics of machine fault mode is presented AC synchronous machine fault diagnosis ... voltages and currents of the induction motor This method is referenced from Peter Vas, “Parameter Estimation, Condition monitoring, and diagnosis of Electrical Machines” Using the dynamic model of...
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Application of computational intelligence for faulty detection and diagnosis of induction motors and electromechanical systems
... automatic software platform for fault detection and diagnosis of induction motors and electromechanical systems, analyzing vibration data features and studying and comparing related algorithm, and targeting ... APPLICATION OF COMPUTATIONAL INTELLIGENCE FOR FAULT DETECTION AND DIAGNOSIS OF INDUCTION MOTORS AND ELECTROMECHANICAL SYSTEMS ZHANG YIFAN B Eng (Hons.), Tianjin ... SVM and how it is applied in the case of induction motors and electromechanical systems condition detection Chapter presents and discusses results of the proposed method of condition detection and...
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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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AN0889 VF control of 3 phase induction motors using PIC16F7X7 microcontrollers
... PWM2 PWM3 2 Run/Stop PIC16F7X7 Optoisolators SD HIN1 HIN2 HIN3 HOut1 IGBTH1 HOut2 IGBTH2 HOut3 IGBTH3 LOut1 IGBTL1 LOut2 IGBTL2 IGBT Drivers LOut3 3- Phase Induction Motor 3- Phase IGBTL3 Inverter ... development of their own applications VF control provides a simple and cost efficient method for open-loop speed control of 3- phase induction motors A low-cost VF solution can be implemented using the PIC16F7X7 ... (capacitors C41/42/ 43 and resistors R81/82/ 83/ 84/91/92/ 93/ 96) • Make all grounds common by shorting P_GND to D_GND VF CONTROL FIRMWARE While the PIC16F7X7 microcontroller makes 3- phase motor control possible,...
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Tài liệu tiếng anh Điện tử công suất mạch MERS Improved performance of induction motor using magnetic energy recovery switch
... Equivalent circuits of series compensated induction motor for system frequency and self-excited frequency Oscillating current waveforms because of self-excitation of induction motor by MERS with open ... SELF-EXCITATION OF SERIES COMPENSATED INDUCTION MOTOR It is well known that series compensation of induction motor may cause some unstable situations[6] Since MERS works as a series capacitor, MERS also ... quarter of the resonance period of L and C of the MERS, vmers, becomes sinusoidal, consequently the terminal voltage,vterm, also becomes sinusoidal Fig shows simulated waveforms of 'dc-offset...
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A COMPARATIVE STUDY OF THE DIAGNOSIS OF PULMONARY TUBERCULOSIS USING CONVENTIONAL TOOLS AND POLYMERASE CHAIN REACTION* pot
... were available 4-8 weeks later As no single gold standard was available for comparison of the performance of the individual tests, an analysis of results was done using a variety of standards ... culture and PCR KAVITA MODI – PAREKH ET AL weeks Characterization of Mycobacteria was done at the Corporation laboratory by primary differential tests for atypical Mycobacteria Statistical analysis ... 36 KAVITA MODI – PAREKH ET AL respiratory diseases other than tuberculosis (Table 1A serial-c) These cases were as follows, two each of asthma, pneumonia and cancer lung, one each of post CABG,...
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POWER ELECTRONIC CONTROL OF INDUCTION MOTORS ppt
... the required rms value of the fundamental harmonic of the output phase to neutral voltage of the AC-AC voltage controller Induction machine Fig 6.5: Speed control of an induction machine by stator ... power supply source for V/f control of induction motors The second one, current source inverter (CSI), is beyond the scope of interest here Principle of operation of a threephase VSI is explained ... prevailing one in closed-loop control of induction motors fed from PWM inverters Explanation of this method however requires at first the introduction of the notion of the space vector Let us at...
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báo cáo khoa học: " Diagnosis of pericardial cysts using diffusion weighted magnetic resonance imaging: A case series" pot
... Radiol 2011 doi:10.1186/1752-1947-5-479 Cite this article as: Raja et al.: Diagnosis of pericardial cysts using diffusion weighted magnetic resonance imaging: A case series Journal of Medical ... Diffusionweighted magnetic resonance imaging in focal breast lesions: analysis of 78 cases with pathological correlation Radiol Med 2010, 116:264-275 Raja et al Journal of Medical Case Reports ... Boniface General Hospital, University of Manitoba, Winnipeg, Manitoba, Canada 3Section of Internal Medicine, Department of Internal Medicine, University of Manitoba, Winnipeg, Manitoba, Canada 4Section...
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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 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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Tài liệu Signal Processing for Telecommunications and Multimedia P2 ppt
... manifold For further information on derivation and implementation of this hard constraint refer to [1] and references therein The closed form analytical expressions for first and second order information ... algorithms for first and third order TITO FIR demixing systems over 10 trials Figure 2-3 (a) and (b) are the two original signals, (c) and (d) are the convolutively mixed signals, (e) and (f) are ... blind signal separation,” in Proc Sensor Array and Multichannel Signal Processing Workshop (SAM), Rosslyn, VA, USA, Aug 2002, pp 403–407 K Rahbar and J Reilly, “A New Frequency Domain Method for...
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Tài liệu Signal Processing for Telecommunications and Multimedia P1 ppt
... SIGNAL PROCESSING FOR TELECOMMUNICATIONS AND MULTIMEDIA MULTIMEDIA SYSTEMS AND APPLICATIONS SERIES Consulting Editor Borko Furht Florida ... area of telecommunications, application of signal processing allows for new generations of systems to achieve performance close to theoretical limits, while in the area of multimedia, signal processing ... upper and lowercase letters to show matrices and vectors, respectively in the time, frequency and domains, e.g., for matrices and for vectors Matrix and vector transpose, complex conjugation, and...
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Tài liệu Signal Processing for Telecommunications and Multimedia P1 docx
... SIGNAL PROCESSING FOR TELECOMMUNICATIONS AND MULTIMEDIA MULTIMEDIA SYSTEMS AND APPLICATIONS SERIES Consulting Editor Borko Furht Florida ... area of telecommunications, application of signal processing allows for new generations of systems to achieve performance close to theoretical limits, while in the area of multimedia, signal processing ... upper and lowercase letters to show matrices and vectors, respectively in the time, frequency and domains, e.g., for matrices and for vectors Matrix and vector transpose, complex conjugation, and...
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Từ khóa: speed control of induction motor using pwm technique pptspeed control of induction motor using triac pptspeed control of induction motor using microcontroller pptppt speed control of induction motor using thyristorspeed control of induction motor using thyristor pdfspeed control of induction motor using triac pdfBáo cáo thực tập tại nhà thuốc tại Thành phố Hồ Chí Minh năm 2018Nghiên cứu sự biến đổi một số cytokin ở bệnh nhân xơ cứng bì hệ thốngNghiên cứu sự hình thành lớp bảo vệ và khả năng chống ăn mòn của thép bền thời tiết trong điều kiện khí hậu nhiệt đới việt namNghiên cứu vật liệu biến hóa (metamaterials) hấp thụ sóng điện tử ở vùng tần số THzNghiên cứu tổ chức chạy tàu hàng cố định theo thời gian trên đường sắt việt namBiện pháp quản lý hoạt động dạy hát xoan trong trường trung học cơ sở huyện lâm thao, phú thọGiáo án Sinh học 11 bài 13: Thực hành phát hiện diệp lục và carôtenôitGiáo án Sinh học 11 bài 13: Thực hành phát hiện diệp lục và carôtenôitNGHIÊN CỨU CÔNG NGHỆ KẾT NỐI VÔ TUYẾN CỰ LY XA, CÔNG SUẤT THẤP LPWAN SLIDEQuản lý hoạt động học tập của học sinh theo hướng phát triển kỹ năng học tập hợp tác tại các trường phổ thông dân tộc bán trú huyện ba chẽ, tỉnh quảng ninhPhát triển mạng lưới kinh doanh nước sạch tại công ty TNHH một thành viên kinh doanh nước sạch quảng ninhTrả hồ sơ điều tra bổ sung đối với các tội xâm phạm sở hữu có tính chất chiếm đoạt theo pháp luật Tố tụng hình sự Việt Nam từ thực tiễn thành phố Hồ Chí Minh (Luận văn thạc sĩ)Tìm hiểu công cụ đánh giá hệ thống đảm bảo an toàn hệ thống thông tinKiểm sát việc giải quyết tố giác, tin báo về tội phạm và kiến nghị khởi tố theo pháp luật tố tụng hình sự Việt Nam từ thực tiễn tỉnh Bình Định (Luận văn thạc sĩ)Quản lý nợ xấu tại Agribank chi nhánh huyện Phù Yên, tỉnh Sơn La (Luận văn thạc sĩ)Tăng trưởng tín dụng hộ sản xuất nông nghiệp tại Ngân hàng Nông nghiệp và Phát triển nông thôn Việt Nam chi nhánh tỉnh Bắc Giang (Luận văn thạc sĩ)Tranh tụng tại phiên tòa hình sự sơ thẩm theo pháp luật tố tụng hình sự Việt Nam từ thực tiễn xét xử của các Tòa án quân sự Quân khu (Luận văn thạc sĩ)Giáo án Sinh học 11 bài 15: Tiêu hóa ở động vậtTrách nhiệm của người sử dụng lao động đối với lao động nữ theo pháp luật lao động Việt Nam từ thực tiễn các khu công nghiệp tại thành phố Hồ Chí Minh (Luận văn thạc sĩ)HIỆU QUẢ CỦA MÔ HÌNH XỬ LÝ BÙN HOẠT TÍNH BẰNG KIỀM