Download or read book Detection of Intermittent Misfiring in a Voltage fed PWM Inverter Induction Motor written by Kenneth Adan Silek and published by . This book was released on 2004 with total page 218 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Mechatronic Systems 2004 written by Reza Moheimani and published by Elsevier. This book was released on 2006-01-10 with total page 398 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Electrical Electronics Abstracts written by and published by . This book was released on 1997 with total page 2304 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book TENCON 2004 written by and published by . This book was released on 2004 with total page 726 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book International Conference on Power Electronics Machines and Drives 16 18 April 2002 Venue University of Bath UK written by and published by . This book was released on 2002 with total page 688 pages. Available in PDF, EPUB and Kindle. Book excerpt: This conference provided a forum for delegates to have the opportunity to discuss, debate and learn about recent developments and future trends in the areas of electrical machines, drives, solid state motion control and power conversion. It was also an opportunity for users to identify short comings in existing designs and equipment, and make equipment manufacturers and installers more aware of their potential markets. The conference was the premier UK technical event for Power Electronic Machines and Drive specialists.
Download or read book Proceedings written by and published by . This book was released on 2003 with total page 692 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Conference Proceedings written by and published by . This book was released on 2000 with total page 580 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Mechatronic Systems 2004 written by S. O. Reza Moheimani and published by . This book was released on 2005 with total page 398 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book 2000 IEEE 31 Comhdh il Bhliant il Na Saineolaithe Ar Leictreonaic Chumhachta Imeachta Na Comhdh la written by and published by . This book was released on 2000 with total page 588 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Off line and On line Partial Discharges Detection in Low Voltage Motors of Electric Vehicle Fed by a PWM Inverter Using Non intrusive Sensor written by Thibaut Billard and published by . This book was released on 2014 with total page 142 pages. Available in PDF, EPUB and Kindle. Book excerpt: To control the speed of the motor in an electric vehicle, one solution is to use in the powertrain an inverter drive with pulse width modulation (PWM). This device is recreating a sinusoidal current on each phase with a high number of short pulses of the same amplitude but with a dynamic duty cycle. Recent advances in power electronics allowed switching time to be quicker and quicker thus creating voltage pulses with shorter and shorter rise time. The use of PWM inverter to fed low voltage is now widespread but not without posing well-known problems regarding the reliability of the machine. When an electric motor is fed with a very number of pulses per second, each pulse is not propagating immediately along the winding and thus the voltage distribution is not uniform as in the sinusoidal case. As a result, most of the voltage is located within the first turns of the coil during the first moment of the switching. When the motor is random wound, first and last turns of the same coil could be adjacent thus putting high demand on the turn-to-turn insulation. Impedance mismatch between power cables and motors terminals could lead to overvoltage which are increasing the electrical stress on the insulation system. In the worst-case scenario, partial discharges could occur and contribute to the gradual deterioration of the insulation materials thus leading to premature failure. If partial discharges are easily detected with sinusoidal voltage with standard testing procedure, it becomes much harder to so when the sample under test is fed by a PWM inverter drive. Indeed, it is very difficult to spot very low amplitude partial discharges signals among very large amplitude voltage and current. Moreover, the PWM inverter is generating electro-magnetical noise, which is highly disturbing in partial discharge detection using RF non-intrusive sensor. Worse still, some electric motors having passed successfully AC or repetitive impulses acceptance tests may still fail prematurely when fed by a PWM inverter drive. The aim of this Ph.D thesis is thus to develop a non-intrusive partial discharges detection method, using a non-intrusive sensor, off-line and on-line in an electric motor fed by a PWM inverter drive. To achieve this, a series of experiments, gradually growing in complexity, will test the detection method with harsher and harsher conditions, thus closer and closer to realistic electric vehicle operating conditions. From a single-phase test on an electric stator to a full-scale test on an industrial engine test bench, off-line and on-line detection proves to be possible. In addition, visual observations and experiments have been carried out to better understand the physics of the observed light emitting discharges.
Download or read book Voltage Analysis of PWM Inverter Fed Induction Motors written by Fahad H. Al-Ghubari and published by . This book was released on 1999 with total page 110 pages. Available in PDF, EPUB and Kindle. Book excerpt: Adjustable Speed Drive (ASD) systems are widely used in industry to effectively improve process efficiency and control. Typically, an ASD system consists of a motor with its speed controlled by a power electronics converter via varying the amplitude and frequency of the input voltage. However, several abnormal insulation failures of random wound motors in ASD applications have been reported. These failures were related to voltage transients caused by inverters employing fast insulated Gate Bipolar Transistors (IGBTs) combined with long cables that connect motors to inverters. This thesis further analyzes the distribution of voltage waveforms generated by a pulse-width modulated (PWM) inverter at the motor terminals and windings. Experimental work was performed at the Motor Systems and Resource Facility (MSRF) at Oregon State University on a specially made 5hp induction motor with taps from the first and second coil and from the first four and last two turns in every phase. Tests were performed with long and short cables and results are compared. A simple simulation model was created in PSpice and used to predict maximum voltage transients across coils and turns. The validation of the model is demonstrated by its capability to predict most of the experimental results.
Download or read book Index to IEEE Publications written by Institute of Electrical and Electronics Engineers and published by . This book was released on 1997 with total page 1468 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book IECON 98 written by IEEE Industrial Electronics Society. Conference and published by . This book was released on 1998 with total page 796 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Modern Electric Vehicle Technology written by C. C. Chan and published by OUP Oxford. This book was released on 2001 with total page 322 pages. Available in PDF, EPUB and Kindle. Book excerpt: A comprehensive and up-to-date reference book on modern electric vehicle technology, which covers the engineering philosophy, state-of-the-art technology, and commercialisation of electrical vehicles.
Download or read book Index to Theses with Abstracts Accepted for Higher Degrees by the Universities of Great Britain and Ireland and the Council for National Academic Awards written by and published by . This book was released on 2007 with total page 676 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Electrical Machines Diagnosis written by Jean-Claude Trigeassou and published by John Wiley & Sons. This book was released on 2013-02-07 with total page 268 pages. Available in PDF, EPUB and Kindle. Book excerpt: Monitoring and diagnosis of electrical machine faults is a scientific and economic issue which is motivated by objectives for reliability and serviceability in electrical drives. This book provides a survey of the techniques used to detect the faults occurring in electrical drives: electrical, thermal and mechanical faults of the electrical machine, faults of the static converter and faults of the energy storage unit. Diagnosis of faults occurring in electrical drives is an essential part of a global monitoring system used to improve reliability and serviceability. This diagnosis is performed with a large variety of techniques: parameter estimation, state observation, Kalman filtering, spectral analysis, neural networks, fuzzy logic, artificial intelligence, etc. Particular emphasis in this book is put on the modeling of the electrical machine in faulty situations. Electrical Machines Diagnosis presents original results obtained mainly by French researchers in different domains. It will be useful as a guideline for the conception of more robust electrical machines and indeed for engineers who have to monitor and maintain electrical drives. As the monitoring and diagnosis of electrical machines is still an open domain, this book will also be very useful to researchers.
Download or read book Practical Electronics Handbook written by Ian Sinclair and published by Elsevier. This book was released on 2007-01-11 with total page 590 pages. Available in PDF, EPUB and Kindle. Book excerpt: Ian Sinclair's Practical Electronics Handbook combines a wealth useful day-to-day electronics information, concise explanations and practical guidance in this essential companion to anyone involved in electronics design and construction. The compact collection of key data, fundamental principles and circuit design basics provides an ideal reference for a wide range of students, enthusiasts, technicians and practitioners of electronics who have progressed beyond the basics. The sixth edition is updated throughout with new material on microcontrollers and computer assistance, and a new chapter on digital signal processing. - Invaluable handbook and reference for hobbyists, students and technicians - Essential day-to-day electronics information, clear explanations and practical guidance in one compact volume - Assumes some previous electronics knowledge but coverage to interest beginners and professionals alike
