igbts for motor drives

... required for the case of PMSM drives (Fig 1) It can be noted that except for the current reference generation part, the system is nearly the same as of the conventional control system for BLDC motor ... improve the performance of the Brushless DC Motor drives The vector-control principle in dq synchronously rotating frame is utilized for the generation of current references only, and the motor currents ... Vector Control for PMSM drives 1535 − + * ia kT T* * ib I* * ic + − + − * va + − * vb * vc ia ib = −(ia + ic ) ic Fig Typical block-diagram of Phase Current Control for BLDCM drives + Torque...

Ngày tải lên: 03/01/2014, 19:46

... The optimum designed IGBTs were used Three IGBTs were connected in series to evaluate performance of series connection of IGBTs V C ONCLUSION Experiments using test facilities for induction heating ... generator side converter using the low loss IGBTs By using the new IGBTs, the MERS losses were improved with 23.5 percent compared to using conventional IGBTs Due to the low voltage utilization ... Appearance of 1200 V/150 A trench FS-IGBT chip for MERS The IGBT and FWD chips were designed optimally for the MERS applications based on the chips used for a conventional 1200 V Field-Stop (FS) IGBT...

Ngày tải lên: 15/10/2013, 16:10

... Induction Motor Drives 2012 3.1 Low stator inductance (~0.05 mH) Figure 3.2: Parameters of 3- induction motors (Low stator impedance) 6|Page Simulation and Speed Control of Induction Motor Drives ... Control of Induction Motor Drives 2012 Figure 3.13: Torque-Speed Characteristics for machine parameters as in Fig 3.8 13 | P a g e Simulation and Speed Control of Induction Motor Drives 2012 3.3 High ... Induction Motor Drives 2012 3.4 Low Rotor Resistance (~0.1 ) Figure 3.20: Parameters of 3- induction motors (Low Rotor Resistance) 18 | P a g e Simulation and Speed Control of Induction Motor Drives...

Ngày tải lên: 18/12/2013, 22:06

... therefore a larger and more costly inverter There are several other compensations techniques set forth in the literature [1, 2] 510 Induction Motor Drives Figure 13.2-5.  Start-up performance ... for Induction Motor Drives, ” IEEE Trans Energy Conversion, Vol 13, No 2, June 1998, pp 163–169 Problems  539   [4]  O Wasynczuk and S.D Sudhoff, “Maximum Torque per Ampere Induction Motor Drives ... torque loop design For the purpose of gaining intuition about the performance of the flux loop, it is convenient to assume that e* Te = K t iqs (13.6-10) 526 Induction Motor Drives Figure 13.6-2. ...

Ngày tải lên: 16/02/2014, 18:54

... sinusoidal back emf waveforms will be analyzed For each drive considered, computer simulations will be used to demonstrate performance Next, averagevalue models for each drive are set forth, along with ... 14.5 STEADY-STATE PERFORMANCE OF VOLTAGE-SOURCE INVERTER DRIVES In the previous section, an average-value model of a voltage-source inverter fed PMAC motor drive was set forth Before using this model ... set forth in Chapter may be used to calculate any quantity of interest Therefore, the goal of this section will primarily be to establish an expression for Vdc 556 PERMANENT-MAGNET AC MOTOR DRIVES...

Ngày tải lên: 16/02/2014, 18:54

... machines for variable-frequency drives Chapter deals with control and estimation techniques for induction motor drives, whereas Chapter deals with control and estimation techniques for synchronous motor ... Current-Fed Converters 281 Chapter Electrical Machines for Variable-Speed Drives 325 Chapter Induction Motor Drives 391 Chapter Synchronous Motor Drives 477 Chapter Computer Simulation and Digital ... the history of power electronics and motor drives Figure 1.18 Where to find information on power electronics Summary References Power Electronics and Motor Drives FIGURE 1.1 What is power electronics?...

Ngày tải lên: 05/03/2014, 09:32

... machines for variable-frequency drives Chapter deals with control and estimation techniques for induction motor drives, whereas Chapter deals with control and estimation techniques for synchronous motor ... Current-Fed Converters 281 Chapter Electrical Machines for Variable-Speed Drives 325 Chapter Induction Motor Drives 391 Chapter Synchronous Motor Drives 477 Chapter Computer Simulation and Digital ... the history of power electronics and motor drives Figure 1.18 Where to find information on power electronics Summary References Power Electronics and Motor Drives FIGURE 1.1 What is power electronics?...

Ngày tải lên: 19/06/2014, 13:20

... electric motor can start under load, there is no need for a clutch and usually no need for a gearbox with various transmission ratios; only a reduction gear and a differential are necessary The motor ... flywheels are now considered for use only in hybrid systems Their potentially high power density makes them very suitable for supplying short bursts of power for acceleration or for storing braking energy ... accumulator; HM, hydraulic motor; ICE, internal combustion engine; MG electric motor/ generator; MT, mechanical transmission; P, pump; W wheels 180 22 PRIME MOVERS FOR MOTOR VEHICLES When the duty...

Ngày tải lên: 03/07/2014, 19:20

Ngày tải lên: 27/03/2015, 13:54

... FIGURE 7: IGBT Equivalent Circuit for an Calculating switching losses for IGBTs is not as straightforward as it is for the MOSFET For this reason, switching losses for IGBTs are typically characterized ... WHAT’S BEST FOR YOUR APPLICATION? The two main choices for power-switching elements for motor drives are the MOSFET and IGBT The bipolar transistor used to be the device of choice for motor control ... even more so for IGBTs Various companies have multiple lines of IGBTs Some are optimized for slow-speed applications that have lower VCE-SAT voltages, while others are optimized for higher-speed...

Ngày tải lên: 11/01/2016, 14:35

... Taper Rotor Loại vành ngắn mạch Brake Motor Không Không ñồng ñồng bộ rôto rôto dây dây quấn quấn Công suất nhỏ ðộng vạn Mômen lớn ðộng ñặc biệt Repulsion Motor Eddy Current mottor STU HCM City ... vệ S/C 0.01 10 13 xIn STU HCM City 19 sản phẩm vs sản phẩm GV2ME16 GV2L16 LC1D12 LC1D12 LRD16 Motor Motor 30% rẻ ẻ STU HCM City 20 Tùy chọn: Ghép nối áp-tô-mát công-tắc-tơ Option: GV2-AF ñơn giản, ... mastered An instinct for safety Protected products There is no risk of accidental manual No Damage actuation IP2 touch-protected terminals STU HCM City 28 TeSys offer An instinct for safety Always...

Ngày tải lên: 21/05/2016, 18:21

... processed through a logic block to generate the PWM outputs for for for for for (5) for for for for for for for for for for (6) for for for for for 664 IEEE TRANSACTIONS ON INDUSTRY APPLICATIONS, VOL ... be expressed in the general form for for for - (9) for (3) for for for for for for (4) and denotes the sector name where Similarly, the corresponding expressions for mode can be derived as shown ... generation for all the regions in sector , and Fig illustrates waves for sector region only IV PERFORMANCE EVALUATION Fig Segmentation of neural network output for U -phase P states and performed...

Ngày tải lên: 22/12/2013, 08:16

... PARK-LIKE TRANSFORMATION FOR NON-SINUSOIDAL BDCM Although an appropriate nonlinear coordinate transformation for motors with sinusoidal emf has been found (the so-called Park transformation), it ... it is not yet the case for motors with non-sinusoidal emf's In this case, however, a Park-like transformation can be defined We propose therefore in this paper a new transformation which preserves ... machine can therefore be decomposed into two motors having Werent time constants : a single-phase motor only able to provide a pulsating torque (the homopolar part) and a two-phase motor with a rotating...

Ngày tải lên: 03/01/2014, 19:44

... Adive Filter 'da + * + + Figure 6: Simplified block diagram for non adive power control ?he dif€erence voltage signal informswhether there was a rise or fall of the actual voltage U 'Ihe ... controller When no load is conneded to is dc side adive power absorbed by adive filter (for a given period) is zero for a constant dc voltage Adive Filter can also supply other load (Eledric Drive or ... AC-DC-AC Cc~lveatm AC-ma&e~ Implemented for 0-7803-1243-0/93%03.0001.Pages 285one h4ic"txolla' 293 [2] RD Veas, J.W.Dixon, B.0oi 'A Novel Load Current Method for a Leading Power Fador Voltage Source...

Ngày tải lên: 03/01/2014, 19:45

... principle of stator control based on reactive power theory for BLDC motor is described by formula A Chart of field-weakening vector control of BLDC motor In figure 1, ϕ is the angle between stator current ... vector chart of BLDC motor is shown as Figure through stator voltage, stator current and stator flux linkage respective expressed by space vector form The vector control of DLDC motor is advance control ... OF FIELD - WEAKENING CONTROL WITH BLDC MOTOR FOR ELECTRIC VEHICLE In order to test the validity of field-weakening control based on reactive power with BLDC motor The experiments are carried out...

Ngày tải lên: 03/01/2014, 19:47

... sufficient condition for V, to satisfy eqn 16 is therefore d By repeating the above exercise for V,, we find that a sufficient condition for V, to satisfy the existence condition for sliding mode ... permanent-magnet motor - design and performance Third International Conference on Electrical Machines and Drives, IEE, London, UK, Nov 16th-18th 1987, pp 246249 LOW, T.S ‘Permanent-magnet motors for direct ... using the SIMNON simulation package [18] The parameters for the motor model are determined experimentally The motor used has the back EMF waveform shown in Fig 4.The wave- (5) = lqd = L,,, 4, = L,,,...

Ngày tải lên: 03/01/2014, 19:52

... positive for an inductor, negative for a capacitor The units for real power are, of course, W , for the apparent power V A and for the reactive power V Ar SOLVING 1-PHASE PROBLEMS Using phasors for ... worth the effort Let us now apply this method to a transformer, but be shrewder in choosing our bases Here well need a base system for each side of the ideal transformer, but in order for them to ... source Note rst that for the total load we can add real and reactive power for each of the two loads: PT QT ST = PL1 + PL2 = QL1 + QL2 = SL1 + SL2 From the information we have for the total load...

Ngày tải lên: 25/01/2014, 13:20

... 23 Where to Go for Additional Information For more information and assistance in implementing a traffic safety program in your workplace, you can contact the Network of Employers for Traffic Safety ... employee drives for work or to and from work Drive Safely Work Week (DSWW) is an annual campaign sponsored by NETS to promote safe driving practices for all employees For further information ... joint effort by NETS, NHTSA and OSHA to reduce motor vehicle-related deaths and injuries in the nation’s workforce This [white paper] was funded under [Purchase Order Number B-9-4-23576] for the...

Ngày tải lên: 19/02/2014, 04:20

... Testing for Motorcycles and Mopeds The emissions test procedure for motorcycles in the United States is the same as for light-duty passenger cars, except that the maximum speed is reduced for motorcycles ... Emission standard for exhaust emissions from motorcycles Measurement method for exhaust emissions from motorcycles under running mode Measurement method for exhaust emissions from motorcycles under ... Standards for Heavy-Duty Vehicles for Type Approval 11 Exhaust Emission Standards (Decree 875/94), Argentina 12 Exhaust Emission Standards for Motor Vehicles, Australia 13 Exhaust Emission Standards for...

Ngày tải lên: 06/03/2014, 16:20

... standards that set minimum performance requirements for new motor vehicles and for certain items of motor vehicle equipment Such standards must be practicable, meet the need for motor vehicle safety, ... ground Motor driven cycle A motorcycle with a motor that produces brake horsepower or less Trailer A motor vehicle with or without motive power, designed for carrying persons or property and for ... its Agent for Service of Process All foreign manufacturers, assemblers, and importers of motor vehicles or motor vehicle equipment must comply with this regulation before offering a motor vehicle...

Ngày tải lên: 07/03/2014, 11:20