electric motors and drives handbook pdf
Electric motors and drives technical manual 2010 edition
... 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
Electric Machines and Drives part 8 pdf
... 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 ... 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
Electric Machines and Drives Part 1 pot
... 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 ã Repaired motors ã TENV and TEAO enclosures Its 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
Electric Machines and Drives Part 2 docx
... 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
Electric Machines and Drives part 6 ppt
... 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
Electric Machines and Drives part 7 ppt
... 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
Electric Machines and Drives part 9 potx
... 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 ... 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
Schneider Electric-Altivar 71 Variable speed drives for synchronous motors and asynchronous motors potx
Ngày tải lên: 28/06/2014, 16:20
The Control Techniques Drives and Controls Handbook
... 326 Appendix A Standards for drives 329 A1 IEC (international) standards 330 Planned future IEC61800 standards 332 A2 CENELEC (EC) standards 332 A3 British standards 334 A4 IEEE (USA) standards 335 A5 ... 262 Pumps 262 Paper and tissue 262 Printing 262 Packaging 263 Engineering industries 263 Wire and cable 263 Hydraulics 263 Electric motors and alternators 264 Textiles 264 Foods, biscuit and confection ... 35 Motors for special applications 37 Geared motors 37 Brake motors 37 Torque motors 37 Motors for hazardous locations 37 General 37 CENELEC 37 North American standards 39 Testing authorities 39 8 Effects...
Ngày tải lên: 20/10/2013, 02:15
Tài liệu Measurement Instrumentation and Sensors Handbook P2 pdf
... former case costs a few dollars and is the watch we wear; the latter instrumentation costs thousands of dollars and is the size of a suitcase. We often record measurand values as though they are ... therefore, will only give adequately correct information if we understand the static and dynamic characteristics of both the measurand and the instrumentation. This, in turn, allows us to then decide ... time it takes for the mercury to heat up and expand up the tube. The static sensitivity will be expressed as so many scale divisions per degree and is all that is of interest in this application....
Ngày tải lên: 23/12/2013, 01:16
Ethical Journalism A Handbook of Values and Practices for the News and Editorial Departments pdf
... as fairly and openly as it treats readers and news sources. The relationship between The Times and advertisers rests on the understanding, long observed in all departments, that news and advertising ... editing. If and when such conditions come up, the staff member must alert his or her department head and the standards editor. Depending on circumstances, ETHICAL JOURNALISM 12 Investments and Family ... harassment and on computers and electronic communications, which appear on the Internet at http://insite.nytco.com/OUR_COMPANY/ POLICIES/policies.html. ETHICAL JOURNALISM 1 Introduction and Purpose ...
Ngày tải lên: 06/03/2014, 11:20