from archives-ouvertes.fr - Supelec
... adopted: 1) Nominal flux is applied to the induction motor drive until it reaches its steady state; 2) at t = 2.3 s, the lossminimization strategy is engaged. Fig. 6 illustrates stator flux estimation robustness. Indeed, the flux estimation was not affected by the loss-minimization process apart fro ...
... adopted: 1) Nominal flux is applied to the induction motor drive until it reaches its steady state; 2) at t = 2.3 s, the lossminimization strategy is engaged. Fig. 6 illustrates stator flux estimation robustness. Indeed, the flux estimation was not affected by the loss-minimization process apart fro ...
T4903127132
... The DTC scheme consists of torque and flux comparator (hysteresis controllers), torque and flux estimator and a switching table. It is much simpler than the vector control system due to the absence of coordinate transformation between stationary frame and synchronous frame and PI regulators. DTC doe ...
... The DTC scheme consists of torque and flux comparator (hysteresis controllers), torque and flux estimator and a switching table. It is much simpler than the vector control system due to the absence of coordinate transformation between stationary frame and synchronous frame and PI regulators. DTC doe ...
Permanent Magnetic Synchronous Generator for
... Nominal AC voltage (L-L rms) 400 V Nominal DC voltage 800 V Switching frequency 4 kHz ...
... Nominal AC voltage (L-L rms) 400 V Nominal DC voltage 800 V Switching frequency 4 kHz ...
Permanent magnet synchronous generator for wind turbines
... Nominal AC voltage (L-L rms) 400 V Nominal DC voltage 800 V Switching frequency 4 kHz ...
... Nominal AC voltage (L-L rms) 400 V Nominal DC voltage 800 V Switching frequency 4 kHz ...
Frequently Asked Questions Page 1 of 7 PennEngineering Motion
... Initially, you can simply provide us with the base motor number followed by a description of the remaining features. For example, you could specify the following: . GM9236 with 24V winding, 19.7:1 gearbox with wide-face gears, a 500 cpr 3-channel encoder, ball bearings in the motor, and an output ba ...
... Initially, you can simply provide us with the base motor number followed by a description of the remaining features. For example, you could specify the following: . GM9236 with 24V winding, 19.7:1 gearbox with wide-face gears, a 500 cpr 3-channel encoder, ball bearings in the motor, and an output ba ...
Full Material(s)-Please Click here
... TPST switch must be kept open. Motor side rheostat must be kept in minimum position and alternator side rheostat in maximum position. Procedure: Open circuit test: Make the connections as per the circuit diagram. Switch on the supply. Start the motor –alternator set by using starter. Adj ...
... TPST switch must be kept open. Motor side rheostat must be kept in minimum position and alternator side rheostat in maximum position. Procedure: Open circuit test: Make the connections as per the circuit diagram. Switch on the supply. Start the motor –alternator set by using starter. Adj ...
The Modelling , Simulation and Control of a 50 kW Vertical Axis
... As shown in Fig. 16 the angular speed of generator shaft is almost free from ripple caused by the rotor of the turbine. This result can be obtained from a well-designed transmission system. Also, an artificial damping can be added if there is a pitch angle control accessibility to the turbine blades ...
... As shown in Fig. 16 the angular speed of generator shaft is almost free from ripple caused by the rotor of the turbine. This result can be obtained from a well-designed transmission system. Also, an artificial damping can be added if there is a pitch angle control accessibility to the turbine blades ...
ECE320-Exam3b-2010-S..
... Problem 3. (40 points) Please read the entire problem and sort out your thoughts before start writing. (a) Explain the principle of a squirrel-cage IM (you need to convince the grader that you understand the principle by using your own words and/or sketches. The flow of your explanation has to be ea ...
... Problem 3. (40 points) Please read the entire problem and sort out your thoughts before start writing. (a) Explain the principle of a squirrel-cage IM (you need to convince the grader that you understand the principle by using your own words and/or sketches. The flow of your explanation has to be ea ...
Electric Motor Data P/N 48560
... Upon receipt of your motor, visually inspect it for damage that may have occurred in shipment or storage. Turn the shaft manually to be sure that it runs freely, and check the nameplate data to be sure that specifications are in accordance with your order. MOTOR CONTROL DEVICES Use of a suitable mot ...
... Upon receipt of your motor, visually inspect it for damage that may have occurred in shipment or storage. Turn the shaft manually to be sure that it runs freely, and check the nameplate data to be sure that specifications are in accordance with your order. MOTOR CONTROL DEVICES Use of a suitable mot ...
section 15170-motors - DeCA Facilities Website
... Explosion-Proof Motors: UL approved and labeled for hazard classification, with over temperature protection. ...
... Explosion-Proof Motors: UL approved and labeled for hazard classification, with over temperature protection. ...
File
... DC motor manufacturers that also produce the corresponding gear down for a motor must list the gear down ratio. The gear down acts to increase torque and reduce rpm. The No Load RPM value given is always that of the last output shaft after the gear down. To find the angular velocity of the motor sha ...
... DC motor manufacturers that also produce the corresponding gear down for a motor must list the gear down ratio. The gear down acts to increase torque and reduce rpm. The No Load RPM value given is always that of the last output shaft after the gear down. To find the angular velocity of the motor sha ...
Determining the mechanical losses in a high
... $ no mechanical commutator, the rotor is a uniform cylinder with no protruding elements, $ higher efficiency compared to that of commutator motors, $ significantly smaller mass and overall dimensions, $ the ease of the rotational speed control, $ no adverse impact on the power supply line and electr ...
... $ no mechanical commutator, the rotor is a uniform cylinder with no protruding elements, $ higher efficiency compared to that of commutator motors, $ significantly smaller mass and overall dimensions, $ the ease of the rotational speed control, $ no adverse impact on the power supply line and electr ...
Electric Motor Design Processes in the Automotive
... Automotive e-drives operate under a variety of load conditions, dependent on variable traffic and road conditions as well as driver attitudes. The mix of engine and motor power also affects the motor duty cycle Driving cycles: these are sometimes defined to predict/represent the load variations. How ...
... Automotive e-drives operate under a variety of load conditions, dependent on variable traffic and road conditions as well as driver attitudes. The mix of engine and motor power also affects the motor duty cycle Driving cycles: these are sometimes defined to predict/represent the load variations. How ...
1 Introduction 2
... supervision and control by the industry. These variables are torque and power consumption. Most industrial applications use some type of electro-motor. The purpose of the motor is to supply the necessary torque transformed into linear translation, flow of current, pressure etc. Through the measureme ...
... supervision and control by the industry. These variables are torque and power consumption. Most industrial applications use some type of electro-motor. The purpose of the motor is to supply the necessary torque transformed into linear translation, flow of current, pressure etc. Through the measureme ...
Speed Control of Induction Machines
... the rotor resistance, it is necessary to connect external variable resistors (winding resistance itself cannot be changed). This, therefore necessitates a slip-ring machine, since only in that case rotor terminals are available outside. For cage rotor machines, there are no rotor terminals. Secondly ...
... the rotor resistance, it is necessary to connect external variable resistors (winding resistance itself cannot be changed). This, therefore necessitates a slip-ring machine, since only in that case rotor terminals are available outside. For cage rotor machines, there are no rotor terminals. Secondly ...
Compact V/f Control Drive YASKAWA AC Drive
... Skip over troublesome resonant frequencies. Drive can be programmed to avoid machine resonance problems by avoiding constant speed operation at certain speed. ...
... Skip over troublesome resonant frequencies. Drive can be programmed to avoid machine resonance problems by avoiding constant speed operation at certain speed. ...
Technical information VDE 0530
... – Power peaks (can be as high as 5x the rated power) 3. What type of operation is required? The type of operation is determined by the variation in time of the power output of the motor (for definitions see Page 7). Thus has a decisive effect on service life and size of the drive. It is important to ...
... – Power peaks (can be as high as 5x the rated power) 3. What type of operation is required? The type of operation is determined by the variation in time of the power output of the motor (for definitions see Page 7). Thus has a decisive effect on service life and size of the drive. It is important to ...
EE 1281721
... quantities into dq frame by using Parks transformation. For the estimation of torque, two emf constant are required i.e ( and . Parks transformation is given by (4). From the equation we see that the number of input variables are reduced from three to two.This method uses three phase conduction tech ...
... quantities into dq frame by using Parks transformation. For the estimation of torque, two emf constant are required i.e ( and . Parks transformation is given by (4). From the equation we see that the number of input variables are reduced from three to two.This method uses three phase conduction tech ...
Induction_Motor
... • A 460V, 25hp, 60Hz, 4-pole, Y-connected wound rotor induction motor has the following impedances in ohms per-phase referred to the stator circuit: • R1 = 0.641 Ω R2 = 0.332 Ω • X1 = 1.106 Ω X2 = 0.464 Ω Xm = 26.3 Ω a)What is the max torque of this motor? At what speed and slip does it occur? b) Wh ...
... • A 460V, 25hp, 60Hz, 4-pole, Y-connected wound rotor induction motor has the following impedances in ohms per-phase referred to the stator circuit: • R1 = 0.641 Ω R2 = 0.332 Ω • X1 = 1.106 Ω X2 = 0.464 Ω Xm = 26.3 Ω a)What is the max torque of this motor? At what speed and slip does it occur? b) Wh ...
E013418426
... interconnected motors. They are suitable for applications where load independent speeds or synchronous operation are required under strict observance of defined speed relations within a large frequency range. Most of the industrial motor applications use AC induction motors. The reasons for this inc ...
... interconnected motors. They are suitable for applications where load independent speeds or synchronous operation are required under strict observance of defined speed relations within a large frequency range. Most of the industrial motor applications use AC induction motors. The reasons for this inc ...
MATLAB Simulation for Speed Control of Three Phase Induction
... Low cost, high efficiency, high robustness, reliability and low maintenance are some the advantages of the induction motors over DC motors. When mechanical loads are changed the speed characteristics for induction motor also changes. The induction motors do not have the constant speed characteristic ...
... Low cost, high efficiency, high robustness, reliability and low maintenance are some the advantages of the induction motors over DC motors. When mechanical loads are changed the speed characteristics for induction motor also changes. The induction motors do not have the constant speed characteristic ...
... Field-Oriented Control (FOC) is an important technology for motor systems, particularly those using permanent magnets (PM). In general, FOC provides an efficient way to control BLDC motor in adjustable speed drive applications that have quickly changing loads, and can improve the power efficiency of ...
HFSR Soft Starter
... surge during Changeover. This start Delta starting method can not be applied to H.T. Motors since their windings are generally connected in star. b) Autotransformer starting provides a better solution. However, the open transition from the tap to full voltage causes severe current surges during chan ...
... surge during Changeover. This start Delta starting method can not be applied to H.T. Motors since their windings are generally connected in star. b) Autotransformer starting provides a better solution. However, the open transition from the tap to full voltage causes severe current surges during chan ...
EE 448
... Single Phase Induction Motors resilient rubber mounting, are never totally effective in eliminating this vibration, particularly when the motor is directly coupled to a large resonant-prone fan. The capacitor run motor is very useful in this type of application because the motor can be designed to h ...
... Single Phase Induction Motors resilient rubber mounting, are never totally effective in eliminating this vibration, particularly when the motor is directly coupled to a large resonant-prone fan. The capacitor run motor is very useful in this type of application because the motor can be designed to h ...
ANALYSIS & MODELING OF HYSTERESIS MOTORS
... It has the ability to pull into synchronization any load that is within its capacity to start and accelerate. This motor is made in very small sizes only. Hysteresis motors are limited to small size by the difficulty of controlling rotor losses caused by imperfections in the stator mmf wave The outs ...
... It has the ability to pull into synchronization any load that is within its capacity to start and accelerate. This motor is made in very small sizes only. Hysteresis motors are limited to small size by the difficulty of controlling rotor losses caused by imperfections in the stator mmf wave The outs ...
Dynamometer
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A dynamometer or ""dyno"" for short, is a device for measuring force, torque, or power. For example, the power produced by an engine, motor or other rotating prime mover can be calculated by simultaneously measuring torque and rotational speed (RPM).A dynamometer can also be used to determine the torque and power required to operate a driven machine such as a pump. In that case, a motoring or driving dynamometer is used. A dynamometer that is designed to be driven is called an absorption or passive dynamometer. A dynamometer that can either drive or absorb is called a universal or active dynamometer.In addition to being used to determine the torque or power characteristics of a machine under test (MUT), dynamometers are employed in a number of other roles. In standard emissions testing cycles such as those defined by the United States Environmental Protection Agency (US EPA), dynamometers are used to provide simulated road loading of either the engine (using an engine dynamometer) or full powertrain (using a chassis dynamometer). In fact, beyond simple power and torque measurements, dynamometers can be used as part of a testbed for a variety of engine development activities, such as the calibration of engine management controllers, detailed investigations into combustion behavior, and tribology.In the medical terminology, hand-held dynamometers are used for routine screening of grip and hand strength, and the initial and ongoing evaluation of patients with hand trauma or dysfunction. They are also used to measure grip strength in patients where compromise of the cervical nerve roots or peripheral nerves is suspected.In the rehabilitation, kinesiology, and ergonomics realms, force dynamometers are used for measuring the back, grip, arm, and/or leg strength of athletes, patients, and workers to evaluate physical status, performance, and task demands. Typically the force applied to a lever or through a cable is measured and then converted to a moment of force by multiplying by the perpendicular distance from the force to the axis of the level.