electric motors and drives fundamentals

... BDFTIG The total electric torque (Te) for the BDFTIG is the sum of the individual electrical torques of both machines: 4 P p(Ψq The electric torque equation is defined by the friction and total inertia ... IM speed and to keep internal signals bounded Figure 14 shows the DFIG rotor currents i rGa and i rGb, and their references over a period of time Again, these currents are sinusoidal and bounded ... IM speed and to keep internal signals bounded Figure 30 shows the DFIG rotor currents i rGa and i rGb, and their references over a period of time Again, these currents are sinusoidal and bounded

Ngày tải lên: 21/06/2014, 01:20

... measured and simulated currents from d axis 10 References Azzolin, R & Gründling, H (2009) A mrac parameter identification algorithm for three-phase induction motors, Electric Machines and Drives ... at standstill and the transfer functions given in 2 and 3 can be generalized as follows i si v si =k pi Z pi(s) R pi(s) =k pi s+h 0i where k pi= L ri ¯ σ i , h 0i = R ri L ri , a 1i=p i and a ... measured currents Figures 11 and 12 shows the transient currents from axis q and d, respectively, while Figures 13 and 14 shows the steady-state currents from axis q and d, respectively From Figures

Ngày tải lên: 21/06/2014, 01:20

... optimization (PSO) used to achieve the best performance for the electric machines and electric drives In addition, by analyzing and comparing the results, it is shown that control strategy based ... voltages and currents and Figure 3 shows the DC-link current and voltage It can be seen that both electrical quantities in the DC bus are smooth with no visible pulsations Fig 2 Phase voltages and ... inertia of motor λds,qs : stator flux(d and q axis) λdr,qr : rotor flux(d and q axis) Vds,qs : stator voltage (d and q axis) ids,qs : stator current (d and q axis) M : mutual inductance

Ngày tải lên: 21/06/2014, 01:20

... (L las , L lbs ) and (L mas , L mbs) indicate the stator leakage inductance and magnetizing inductance, respectively, and L lr and L mr indicate the rotor leakage inductance and magnetizing inductance, ... voltage to guarantee installation cost reduction and some individual motor controls In Wekhande et al (1999) and Jabbar et al (2004), Campos et al (2007a) and Campos et al (2007b), two topologies are ... , L arbs(bsar) and L asar(aras),L bsbr(brbs) are the mutual inductance between the stator and rotor windings Since the stator windings are in space quadrature and asymmetric, and the rotor windings

Ngày tải lên: 21/06/2014, 01:20

... actual value of the motor speed In Fig 9 and Fig 10, the torque Fig 8 Motor speed (rpm) Trang 2Fig 9 Commanded and estimated torque (Nm) Fig 10 Commanded and estimated flux Fig 11 Stator currents ... A M N and da Silva, E R C (1999) Single-phase Induction Motor Drives Systems, APEC´99, Dallas, Texas, vol 1, pp 403-409 Krause, P C.; O Wasynczuk, O and Sudhoff, S D (1995) Analysis of Electric ... S.; Landin, R P.; Filho, E B S.; Lins, Z D.; Cruz, J M S and Accioly, A G H (2002) Single-Phase Induction Motor Drives with Direct Torque Control, IECON´02, vol.1, pp 241-246 Takahashi, I and

Ngày tải lên: 21/06/2014, 01:20

... Hosseini, Tohid Nouri2 and Mehran Sabahi, “A Novel Hybrid Active Filter for Power Quality Improvement and Neutral Current Cancellation,” International Conference on Electrical and Electronics Engineering, ... in benefiting from the first and second method, where the matrix used for the calculation of the duty time containing simple operation and the elements are just 0,1 and -1 As a result the four ... on two level inverters and later for multilevel inverters But it is important to mention that the SVMPWM gave a great flexibility and helps in improving the technical and economical aspect using

Ngày tải lên: 21/06/2014, 01:20

... mechanical and electrical standards for motors: NEMA in North America and IEC in most of the rest of the world Dimensionally, IEC standards are expressed in metric units Though NEMA and IEC standards ... place and that all tools, blocks, and braces used in the repair are removed Make sure that all employ-ees stand clear of the machinery Electrical Codes and Standards OCCUPATIONAL SAFETY AND ... responses and provide an opportunity for the student to share more than www.EngineeringEBooksPdf.com Trang 2 Electric Motors and Control Systems www.EngineeringEBooksPdf.com Trang 4 Electric Motors and

Ngày tải lên: 17/10/2021, 18:00

... death Trang 5Before you beginRead and understand these instructions before performing any procedure using this drive. DANGER RISK OF ELECTRIC SHOCK • Read and understand this manual before installing ... Trang 1Altivar 71Variable speed drives for synchronous motors and asynchronous motors Installation Manual 03/2011 0.37 (0.5 HP) 45 kW (60 HP)/200 - 240V ... Installation, adjustment, repair, and maintenance must be performed by qualified personnel • The user is responsible for compliance with all international and national electrical standards in force concerning

Ngày tải lên: 28/06/2014, 16:20

... Use safe practices when handling, lifting, installing, operating, and maintaining motors and related equipment • Install motors and related equipment in accordance with the National Electrical Code (NEC) local electrical ... discovered in the early 1800’s by Oersted, Gauss and Faraday, and this combination of Scandinavian, German and English thought gave us the fundamentals for the electric motor In the late 1800’s the actual ... primary winding and the rotor bars and end rings being the movable secondary members Trang 7Both single-phase and polyphase (three-phase) AC motors are produced by Marathon Motors and many other

Ngày tải lên: 20/10/2021, 21:21

... ATV71H ppp M3X and ATV71H ppp N4 drives ATV71H D55M3XD to D75M3XD and ATV71H D90N4D to C50N4D drives are not supplied with a DC choke ATV71H D55M3X to D75M3X and ATV71H D90N4 to C50N4 drives are ... death Trang 5Before you beginRead and understand these instructions before performing any procedure on this drive. DANGER RISK OF ELECTRIC SHOCK • Read and understand this manual before installing ... category 3 of standard EN 954-1, ISO 13849-1 and safetyintegrity level 2 according to IEC/EN 61508 The Power Removal function takes priority over any run command Read and understand the instructions

Ngày tải lên: 28/06/2014, 16:20

... Repair and Rewinding of Electric Motors for the Petroleum and Chemical Industry, IEEE Std 1068-1990. [2] Standard for the Repair and Rewinding of AC Electric Motors in the Petro-leum, Chemical and ... standard expands this area of discussion by pro-viding further particulars Electrical Testing Electrical testing methods for ac and dc high potential, and surge testing, draw on the IEEE Standards ... C Yung, and C Nyberg, “Recent revisions of IEEE 1068 standard for the repair and rewinding of AC electric motors in the petroleum, chemical and process industries,” in Proc 2007 Pulp and Paper

Ngày tải lên: 26/11/2015, 09:41

... Instrumentation and Control; Electrical Science; Material Science; Mechanical Science;Chemistry; Engineering Symbology, Prints, and Drawings; and Nuclear Physics and ReactorTheory The handbooks are ... understand the advanced theoretical conceptspresented in other subject areas, and to better understand basic system and equipment operations Trang 10blankTrang 11Department of Energy Fundamentals HandbookINSTRUMENTATION ... 3INSTRUMENTATION AND CONTROLABSTRACT The Instrumentation and Control Fundamentals Handbook was developed to assist nuclear facility operating contractors provide operators, maintenance personnel, and the

Ngày tải lên: 28/12/2013, 22:07

... Roadmap Trang 3S7-300 - Memory, performance and quantitative frameworkMain memory Instructions Load memory Command runtimes - Binary commands - Word commands - Floating-point c Comm res. Flags ... the S7-300 automation platform Trang 2SIMATIC S7 system familyS7-400 High-end and mid performance range S7-300 Mid and low-end performance range  Max of 2 interfaces (field bus, cell bus)  ... Miscellaneous Synchronism Roadmap Trang 5Innovations - Features and benefits (I)High processing speed  4x faster processing of binary word commands  10x faster floating-point arithmetic  Increased

Ngày tải lên: 05/07/2014, 05:20

... and press Enter 12 Click the item under Category, type Parent and press Enter 13 Type Child and press Enter 14 To move the Category menu and position it to the left side of Family, click and ... close it and return to MSVC 3.9.2 Window Registration and Custom Resources If the standard cursors and/or icons are not enough, you can create your own To create your own cursor, display and select ... Upon clicking, the menu expands and displays a list of items that belong to that category Here is an example where the View menu of WordPerfect was clicked and got expanded: There is no strict

Ngày tải lên: 06/08/2014, 17:20

... IDB_BITMAP1 resource and click Properties © FunctionX, Inc 207 Chapter GDI Orientation and Transformations Visual C++ and MFC Fundamentals 11 Change its ID to IDB_LADY 12 Add a message handler of the ... Document/View Architecture Visual C++ and MFC Fundamentals BEGIN_MESSAGE_MAP(CTestDoc, CDocument) ON_COMMAND(ID_FILE_SEND_MAIL, OnFileSendMail) ON_UPDATE_COMMAND_UI(ID_FILE_SEND_MAIL, OnUpdateFileSendMail) ... printer, a bitmap holds some properties and follows a set of rules © FunctionX, Inc 205 Chapter GDI Orientation and Transformations Visual C++ and MFC Fundamentals There are various types of

Ngày tải lên: 06/08/2014, 17:20

... possible values are DEFAULT_QUALITY, PROOF_QUALITY, and DRAFT_QUALITY The nPitchAndFamily specifies the category of the font used It combines the pitch and the family the intended font belongs to The ... drawing is performed and the necessary tools to draw on it As such, when declaring a CDC variable, it also creates and selects a black pen This is why we have been able to draw lines and other shapes ... we have been able to draw lines and other shapes so far 7.5.2 The Fundamentals of a Pen A pen is a tool used to draw lines and curves on a device context In the graphics programming, a pen is

Ngày tải lên: 06/08/2014, 17:20

... 110.1.4 The Command Line To execute a program, you must communicate its path and possibly some additional parameters to the compiler This information is called the command line information and it is ... stable IDC_ARROW This standard arrow is the most commonly used cursor IDC_CROSS The crosshair cursor is used in various circumstances such as drawing IDC_HAND The Hand is standard only in Windows ... CMainFrame::OnViewLocationandsize() { // TODO: Add your command handler code here CRect Recto; using the CFrameWnd::Create() method or AppWizard, you can redefine its location and size from the PreCreateWindow()

Ngày tải lên: 06/08/2014, 17:20

... 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

... 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