electric motors and drives pdf

... class. Slip - ring motors, commutator motors and brake motors can all be made in flameproof versions. No external parts may cause sparks. The motors must have both an interna l and an external earthing ... sets the standards. Or at least many countries base their standards very closely on the IEC standards (for example, Germany's VDE 0530 standard and Great Britain's BS 2613 Standard closely ... though, the standards can be grouped into two major categories: NEMA and IEC (and its derivatives). In North America, the National Electric Man ufacturers Association (NEMA) sets motor standards,...

Ngày tải lên: 12/01/2014, 10:43

... voltages v rGa and v rGb , the IM rotor speed ω mM and its estimation ˆ ω mM , the estimated IM load torque ˆ τ ML , and the estimated IM speed, given by 132 Electric Machines and Drives 52.6 52.65 ... à la commande des systèmes électromécaniques,” PhD thesis, Université de Paris XI, France, 2004. [5] W. Leonhard, “Control of electrical drives, ” Spring-Verlag, 1985. [6] M.S. Vicatos and J.A. ... 2002. [13] A. J. van der Schaft, “L 2 –Gain and Passivity Techniques in Nonlinear Control,” Springer–Verlag, Berlin, 1999. 144 Electric Machines and Drives equation ¯ σ q = L sq L rq − L 2 mq , ¯ σ d =...

Ngày tải lên: 21/06/2014, 01:20

... Institute of Electrical and Electronics Engineers (IEEE) “Standard Test Procedure for Polyphase Induction Motors and Generators” IEEE 112-B and in its Canadian CSA 390 adaptation. The standard first ... Medium voltage motors • Repaired motors • TENV and TEAO enclosures It’s relevant to notice that regulation concerning single phase and three-phase small (42/48 and 56 frame) motors is ready, ... be obtained from orders@intechweb.org Electric Machines and Drives, Edited by Miroslav Chomat p. cm. ISBN 978-953-307-548-8 ELECTRIC MACHINES AND DRIVES Edited by Miroslav Chomat Contents VI Swarm...

Ngày tải lên: 21/06/2014, 01:20

... Canada with the adoption of Standard CAN/CSA- Electric Machines and Drives 14 Fig. 7. Stator Premium motors Fig. 8. Rotor Premium motors Electric Machines and Drives 16 Fig. 11. ... incentives and voluntary measures for the energy efficiency of electric motors is not sufficient, as it is prerequisite to implement mandatory measures for Electric Machines and Drives 22 ... (2008a) “Barriers and incentive policies to high-efficiency motors and drives market penetration,”. IEEE International symposium on power electronics, electrical drives, automation and motion SPEEDAM...

Ngày tải lên: 21/06/2014, 01:20

... estimated speed and reference speed, (i.e. e ω =  ω −ω re f ), a proportional integral compensation is proposed, as follows 100 Electric Machines and Drives Electric Machines and Drives 90 ... jNωL m i s + L r d dt i r + L m d dt i s (26) 102 Electric Machines and Drives where R s , R r , L s and L r are the stator/rotor resistances and inductances, L m is the magnetizing inductance, ... θ 0 sin θ 0 cos θ 0  and K =  2 3 ⎡ ⎢ ⎣ 1 − 1 2 − 1 2 0 − √ 3 2 − √ 3 2 ⎤ ⎥ ⎦ . x qd and x αβ stand for two-dimensional voltage flux and stator current vector, respectively on (q-d) and ( α-β)reference...

Ngày tải lên: 21/06/2014, 01:20

... desired torque, and will be taken as a simple PI controller. The reader is referred to (1) for motivation and additional details on this control configuration. 122 Electric Machines and Drives 0 10 ... variables 1 prime mover torque and speed, (τ LG , ω G ) ,and rotor and stator voltages and currents, (v rG , i rG ), (v sG , i sG ), respectively. The IM, on the other hand, is a two–port system with ... infinite, and saturation, iron losses, end winding and slot effects are neglected. Only linear magnetic materials are considered, and it is further assumed that all parameters are constant and known....

Ngày tải lên: 21/06/2014, 01:20

... in electric drives. The excellent characteristics of PSO may be successfully used to optimize the performance of electric machines and electric drives in many aspects. It is estimated that, electric ... 2009. IECON ’09. 35th Annual Conference of IEEE, pp. 1003 –1008. 160 Electric Machines and Drives Electric Machines and Drives 168 Are all possible operating conditions optimized varying ... 3. Motor parameter identified in simulation. 154 Electric Machines and Drives Swarm Intelligence Based Controller for Electric Machines and Hybrid Electric Vehicles Applications 163 r M L lM L mq L lr + - (1/k) ω r λ dr + - V qs r r i qs i qr R qf...

Ngày tải lên: 21/06/2014, 01:20

Ngày tải lên: 21/06/2014, 01:20

Ngày tải lên: 21/06/2014, 01:20

Ngày tải lên: 21/06/2014, 01:20

Ngày tải lên: 21/06/2014, 01:20

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Ngày tải lên: 28/06/2014, 16:20

... will Ⅲ Understand the embedded Linux development environment. Ⅲ Understand and create Linux BSP for a hardware platform. Ⅲ Understand the Linux model for embedded storage and write drivers and applications ... leaks and memory corruption in applica- tions and drivers. Ⅲ Learn methods to profile applications and the kernel. Ⅲ Understand uCLinux architecture and its programming model. Ⅲ Understand the ... I2C subsystem, and USB gadgets. vi Embedded Linux System Design and Development Ⅲ Borland is a registered trademark of Borland Software Corporation in the United States and other countries. ...

Ngày tải lên: 04/08/2012, 14:23

... products and how they work, how the distribution system operates, how to deal with both suppliers and customers and how to handle complaints. They also study trade and retail laws, and are accompanied ... solve problems and find resol that are prac and bene to everyone. 9. Unlike a formal court case, nego are in private. 10. Resolutions and sett are based on com and on mut agreement and acceptance. 11. ... jobs and develop their skills for the whole period they are working here, and not just at the beginning of their contract. We run regular courses and workshops in order to achieve this, both on and...

Ngày tải lên: 08/08/2012, 17:31

... cruel and intended to upset someone. 17. If you are in a difficult or unpleasant situation and you decide to cut and run, you pretend that the situation is not so difficult or unpleasant and continue ... ________, and smashed the car through the agency's window. And that, your honour, ladies and gentlemen of the jury, is my story. I hope you will take into account my feelings and emotions ... tell me that I work hard and get good results, then you tell everyone else that I'm lazy and incompetent! ( dishonest about your feelings, thoughts and beliefs, and tending to tell people...

Ngày tải lên: 08/08/2012, 17:32

Ngày tải lên: 21/09/2012, 17:17

... - Why you are interested in that language And say if you think it is more or less difficult to learn than English and your language, and why Talk about a foreign language apart from ... differs from your language and from English - How you first became interested in that language And say if you think that would be an easy language to learn for you or not, and why Talk about ... lives -What it does And say if you would like to live near one of these animals or not, and why Written by Alex Case for UsingEnglish.com © 2008 - When they lived And say if you think...

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