DL01420622071
... This is due to the fact that by aligning the SRRF with the rotor flux, the vector control structure becomes simple and the dynamic response of the drive is observed to be better than any other alignment of the SRRF [1], [6]. On a broad basis, vector control technique can be classified into (a) direc ...
... This is due to the fact that by aligning the SRRF with the rotor flux, the vector control structure becomes simple and the dynamic response of the drive is observed to be better than any other alignment of the SRRF [1], [6]. On a broad basis, vector control technique can be classified into (a) direc ...
Type of Electric Motors
... Type of Electric Motors AC Motors – Induction motor • Single-phase induction motor • One stator winding • Single-phase power supply • Squirrel cage rotor • Require device to start motor • 3 to 4 HP applications ...
... Type of Electric Motors AC Motors – Induction motor • Single-phase induction motor • One stator winding • Single-phase power supply • Squirrel cage rotor • Require device to start motor • 3 to 4 HP applications ...
Motor Mounted Components - Altra Literature Portal
... In lowering operation, the drive motor acts as a generator and its braking effect results in a steady downward motion (constant speed). If we ignore transmission losses, under full load the drive must brake the load with the rated motor torque. If a mechanical brake with a braking torque equal to th ...
... In lowering operation, the drive motor acts as a generator and its braking effect results in a steady downward motion (constant speed). If we ignore transmission losses, under full load the drive must brake the load with the rated motor torque. If a mechanical brake with a braking torque equal to th ...
Torque Improvement in Brushed DC Motors by using Four Pole
... Arrangement of winding pattern is important as number of poles is four. Traditionally for core DC motors coil is wound in two ways, one in lap pattern and other in wave pattern. In lap pattern, two ends of coil are terminated to adjacent segments. This pattern would require use of 4 numbers of brush ...
... Arrangement of winding pattern is important as number of poles is four. Traditionally for core DC motors coil is wound in two ways, one in lap pattern and other in wave pattern. In lap pattern, two ends of coil are terminated to adjacent segments. This pattern would require use of 4 numbers of brush ...
Introduction to Using Hybrid-Electric Vehicle Technology with
... outside of the motor. The rotor, however, has permanent magnets placed on or in the rotor. It is the magnets and the winding technology of the coils that give the motor its higher torque density compared with an AC induction motor. A feedback device is typically located on the rear of the motor. Mos ...
... outside of the motor. The rotor, however, has permanent magnets placed on or in the rotor. It is the magnets and the winding technology of the coils that give the motor its higher torque density compared with an AC induction motor. A feedback device is typically located on the rear of the motor. Mos ...
Measurement and Interpretation of Muscle Force Vectors, Moments
... assume a relaxed position (no muscular contraction in the lower extremity) with this multi-segment system at knee angles from 180 (straight knee) to 90 (posterior knee angle). For this process, set the angular velocity of the isokinetic dynamometer to 15/second [(/12)(radians/second)] and recor ...
... assume a relaxed position (no muscular contraction in the lower extremity) with this multi-segment system at knee angles from 180 (straight knee) to 90 (posterior knee angle). For this process, set the angular velocity of the isokinetic dynamometer to 15/second [(/12)(radians/second)] and recor ...
User and Installation Manual
... feasibility of electric drive vehicle applications. UQM Technologies, Inc does not imply that these drives have been tested or pass EMI RFI standards as set forth by any of the regulatory agencies. It should be understood that EMI and RFI from UQM Technologies, Inc. drives could interfere with radio ...
... feasibility of electric drive vehicle applications. UQM Technologies, Inc does not imply that these drives have been tested or pass EMI RFI standards as set forth by any of the regulatory agencies. It should be understood that EMI and RFI from UQM Technologies, Inc. drives could interfere with radio ...
Chapter 3 - Automation Direct
... The SR44 Soft Starter is based on a series of microprocessor-based optimizing soft starters which have been used world-wide in more than 100,000 critical and non-critical systems. Since 1983, these soft starters have successfully operated with almost every type of load and environment from the Antar ...
... The SR44 Soft Starter is based on a series of microprocessor-based optimizing soft starters which have been used world-wide in more than 100,000 critical and non-critical systems. Since 1983, these soft starters have successfully operated with almost every type of load and environment from the Antar ...
PI3426832691
... Some have tried to solve these problems by redesigning the induction machine (Jansen et al, 1994a).As it is most unfavourable using anything but standard machines, redesigned motors are not considered the best solution [2]. One of the mature control systems of induction motor is the field oriented c ...
... Some have tried to solve these problems by redesigning the induction machine (Jansen et al, 1994a).As it is most unfavourable using anything but standard machines, redesigned motors are not considered the best solution [2]. One of the mature control systems of induction motor is the field oriented c ...
Reliability in motion
... (Totally Enclosed Blower Cooled) – This is usually a Vector Duty / ASD motor with a CT Speed Range of 120:1 or 1000:1. ...
... (Totally Enclosed Blower Cooled) – This is usually a Vector Duty / ASD motor with a CT Speed Range of 120:1 or 1000:1. ...
efficiency optimized control of high performance induction motor drive
... Undoubtedly, the induction motor is a widely used electrical motor and a great energy consumer. Three-phase induction motors consume more than 60% of industrial electricity and it takes a lot of effort to improve their efficiency [1]. The vast majority of induction motor drives are used for heating, ...
... Undoubtedly, the induction motor is a widely used electrical motor and a great energy consumer. Three-phase induction motors consume more than 60% of industrial electricity and it takes a lot of effort to improve their efficiency [1]. The vast majority of induction motor drives are used for heating, ...
4. Power limitation control at high marine currents
... In this case, the rotor speed reference can be calculated from the turbine power characteristics. The required Cp value is firstly calculated from the generator power limitation value (Plimit) and the marine current speed value V. This calculation is based on the turbine power equation (3). The corr ...
... In this case, the rotor speed reference can be calculated from the turbine power characteristics. The required Cp value is firstly calculated from the generator power limitation value (Plimit) and the marine current speed value V. This calculation is based on the turbine power equation (3). The corr ...
MEEPS 201 Power System Control and Security
... 2. (a) Discuss with a block schematic diagram the implementation of AGC for one control area (13 marks) (b) A power system has a total load of 1,260 MW at 60 Hz. The load varies by 1.5% for every 1% change in frequency (D=1.5). Find the steady state frequency deviation when a 60 MW load is suddenly ...
... 2. (a) Discuss with a block schematic diagram the implementation of AGC for one control area (13 marks) (b) A power system has a total load of 1,260 MW at 60 Hz. The load varies by 1.5% for every 1% change in frequency (D=1.5). Find the steady state frequency deviation when a 60 MW load is suddenly ...
Switched Reluctance Motor - University of Technology Sydney
... The rotor is aligned whenever the diametrically opposite stator poles are excited. In a magnetic circuit, the rotating part prefers to come to the minimum reluctance position at the instance of excitation. While two rotor poles are aligned to the two stator poles, another set of rotor poles is out o ...
... The rotor is aligned whenever the diametrically opposite stator poles are excited. In a magnetic circuit, the rotating part prefers to come to the minimum reluctance position at the instance of excitation. While two rotor poles are aligned to the two stator poles, another set of rotor poles is out o ...
adjustable speed drives
... Universal motors are series-wound motors that can be operated on either DC or AC power. Performance is the same, regardless of which power supply is used. The operating characteristics of universal motors are similar to those of DC series motors. However, universal motors are small in size, with rat ...
... Universal motors are series-wound motors that can be operated on either DC or AC power. Performance is the same, regardless of which power supply is used. The operating characteristics of universal motors are similar to those of DC series motors. However, universal motors are small in size, with rat ...
Intro to Orchestral Conducting
... Important to know the position of the rotor to properly switch current through the motor phases in order to achieve the desired rotation of the shaft ...
... Important to know the position of the rotor to properly switch current through the motor phases in order to achieve the desired rotation of the shaft ...
DR32733737
... the size of the motor is higher, making it useful in applications where space and weight are critical factors. BLDC motor require an inverter and position sensors that exposes rotor position for appropriate alternation of current. the rotation of the BLDC motor is built on the feedback of rotor posi ...
... the size of the motor is higher, making it useful in applications where space and weight are critical factors. BLDC motor require an inverter and position sensors that exposes rotor position for appropriate alternation of current. the rotation of the BLDC motor is built on the feedback of rotor posi ...
Performance Optimization of Induction Motors During Voltage
... motor starters are commercially available up to an operating voltage level of 15 kV l-l, and a power rating of 20 000 hp. With the present technology, the higher cost, complexity, and larger volume occupied by the variable-frequency dc link converter can be largely offset both by the high starting t ...
... motor starters are commercially available up to an operating voltage level of 15 kV l-l, and a power rating of 20 000 hp. With the present technology, the higher cost, complexity, and larger volume occupied by the variable-frequency dc link converter can be largely offset both by the high starting t ...
Drive Systems Geared Motors, Motors and Electronic Drives.
... this WATT product is its UNIBLOCK® design: the housing is machined on all sides, which further increases the number of possible assembling variants. Adapter kit WATT adapters provide a very simple „dry“ way of attaching standard IEC or NEMA motors, servomotors or special motors to Watt Drive´s gear ...
... this WATT product is its UNIBLOCK® design: the housing is machined on all sides, which further increases the number of possible assembling variants. Adapter kit WATT adapters provide a very simple „dry“ way of attaching standard IEC or NEMA motors, servomotors or special motors to Watt Drive´s gear ...
article: linear induction motor
... overhead cranes used DC drives or wound rotor motors (WRIM) with slip rings for rotor circuit connection to variable external resistance allowing considerable range of speed control. However, resistor losses associated with low speed operation of WRIMs is a major cost disadvantage, especially for co ...
... overhead cranes used DC drives or wound rotor motors (WRIM) with slip rings for rotor circuit connection to variable external resistance allowing considerable range of speed control. However, resistor losses associated with low speed operation of WRIMs is a major cost disadvantage, especially for co ...
IOSR Journal of Electronics and Communication Engineering (IOSR-JECE)
... A TTL-level synchronizing signal is provided at the front panel Sync out jack, so that an oscilloscope can be triggered when the Electronic load is about to apply a pulse. This is useful for watching the transient response of the device under test (DUT). 3.1.2 Analog module Main part of analog modul ...
... A TTL-level synchronizing signal is provided at the front panel Sync out jack, so that an oscilloscope can be triggered when the Electronic load is about to apply a pulse. This is useful for watching the transient response of the device under test (DUT). 3.1.2 Analog module Main part of analog modul ...
IOSR Journal of Electrical and Electronics Engineering (IOSR-JEEE)
... components, namely the prime mover, the energy transmitting device and the actual apparatus or equipment[1]. The function of the prime mover and the energy transmitting device is to impart the motion and operate actual apparatus. The most commonly used prime mover is, of course an electric motor, si ...
... components, namely the prime mover, the energy transmitting device and the actual apparatus or equipment[1]. The function of the prime mover and the energy transmitting device is to impart the motion and operate actual apparatus. The most commonly used prime mover is, of course an electric motor, si ...
PDF
... orthogonal components that can be visualized with a vector. One component defines the magnetic flux of the motor, the other defines the torque. The control system of the drive calculates from the flux and torque references given by the drive's speed control the corresponding current component refere ...
... orthogonal components that can be visualized with a vector. One component defines the magnetic flux of the motor, the other defines the torque. The control system of the drive calculates from the flux and torque references given by the drive's speed control the corresponding current component refere ...
DC Motors - ReshimNa5.ru
... At the most basic level, electric motors exist to convert electrical energy into mechanical energy. This is done by way of two interacting magnetic fields -- one stationary, and another attached to a part that can move. A number of types of electric motors exist, but most BEAMbots use DC motors1 in ...
... At the most basic level, electric motors exist to convert electrical energy into mechanical energy. This is done by way of two interacting magnetic fields -- one stationary, and another attached to a part that can move. A number of types of electric motors exist, but most BEAMbots use DC motors1 in ...
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.