IOSR Journal of Electronics and Communication Engineering (IOSR-JECE) ISSN: , PP: 27-32 www.iosrjournals.org
... both mechanical and electrical shock to the system. Energy savings at lightly loaded conditions. Energy savings by voltage control is achieved by reducing the applied voltage if the load torque requirement can be met with less than rated flux. This way, core loss and stator copper losses can be redu ...
... both mechanical and electrical shock to the system. Energy savings at lightly loaded conditions. Energy savings by voltage control is achieved by reducing the applied voltage if the load torque requirement can be met with less than rated flux. This way, core loss and stator copper losses can be redu ...
M6_C3_Lesson 1_System Development.
... – Conditions power to motor, responds to driver request and provides feedback loop from motor to controller logic ...
... – Conditions power to motor, responds to driver request and provides feedback loop from motor to controller logic ...
chapter 2 switched reluctance motor and its application
... When the voltage is applied to the stator phase, the motor creates torque in the direction of increasing inductance. When the phase is energized in the minimum inductance position, the rotor tends to attain the forthcoming position of maximum inductance. This movement is defined by the magnetization ...
... When the voltage is applied to the stator phase, the motor creates torque in the direction of increasing inductance. When the phase is energized in the minimum inductance position, the rotor tends to attain the forthcoming position of maximum inductance. This movement is defined by the magnetization ...
DC Motors, Stepper Motors, H
... AC versus DC Motors • AC motors are not very flexible w/o a transmission – They can only turn in one direction – The speed is controlled by the design of the motor and the frequency of the AC current source (60Hz) ...
... AC versus DC Motors • AC motors are not very flexible w/o a transmission – They can only turn in one direction – The speed is controlled by the design of the motor and the frequency of the AC current source (60Hz) ...
Alternator
... and magnetic field move to each other Extent of induced voltage depends on magnetic field rate and conductor movement speed ( engine revolutions ) ...
... and magnetic field move to each other Extent of induced voltage depends on magnetic field rate and conductor movement speed ( engine revolutions ) ...
experimental results
... The complicated coupled nonlinear dynamic performance of PMSM can be significantly improved using vector control theory [3, 4, 5, 6, 7, 9, 10] where torque and flux can be controlled separately. Under perfect field orientation and with constant flux operation, a simple linear relation can characteri ...
... The complicated coupled nonlinear dynamic performance of PMSM can be significantly improved using vector control theory [3, 4, 5, 6, 7, 9, 10] where torque and flux can be controlled separately. Under perfect field orientation and with constant flux operation, a simple linear relation can characteri ...
ac generator theory - Pole Shift Survival Information
... these generators operate, the basic theory of operation must first be understood. ...
... these generators operate, the basic theory of operation must first be understood. ...
PHYS_3342_101811
... The interaction between magnetic poles is similar to the Coulomb interaction of electric charges BUT magnetic poles always come in pairs (N and S), nobody has observed yet a single pole (monopole). Despite numerous searches, no evidence of magnetic charges exist. In other words, there are no particl ...
... The interaction between magnetic poles is similar to the Coulomb interaction of electric charges BUT magnetic poles always come in pairs (N and S), nobody has observed yet a single pole (monopole). Despite numerous searches, no evidence of magnetic charges exist. In other words, there are no particl ...
D43042025
... These are DC series motor which produce maximum torque while starting and suitable for quick acceleration. The speed can be easily varied by varying the input voltage. They are able to move very large shaft loads when it is first energized. The amount of current that passes through the winding deter ...
... These are DC series motor which produce maximum torque while starting and suitable for quick acceleration. The speed can be easily varied by varying the input voltage. They are able to move very large shaft loads when it is first energized. The amount of current that passes through the winding deter ...
DC Motor Characteristics
... (3) Viscous Drag – Dv (N.m/radians/second) (4) Coulomb Drag – Dc (N.m) (5) Mechanical Time Constant – τmech (second) (6) Motor Torque Constant – Kt (N.m/Ampere) (7) System Rotational Inertia – J (kg.m) (8) Electrical time constant τelec (seconds) (9) Inductance L (henries) ...
... (3) Viscous Drag – Dv (N.m/radians/second) (4) Coulomb Drag – Dc (N.m) (5) Mechanical Time Constant – τmech (second) (6) Motor Torque Constant – Kt (N.m/Ampere) (7) System Rotational Inertia – J (kg.m) (8) Electrical time constant τelec (seconds) (9) Inductance L (henries) ...
2016 Comparative-Study of Concentrated Distributed Winding Using Flux GB CN69
... topologies ...) and progress in the manufacture of semiconductor materials are the source of a new generation of electric actuators and improve the performance of electric drive systems and various applications. Among AC motors used in variable speed we find permanent magnet synchronous machines, ad ...
... topologies ...) and progress in the manufacture of semiconductor materials are the source of a new generation of electric actuators and improve the performance of electric drive systems and various applications. Among AC motors used in variable speed we find permanent magnet synchronous machines, ad ...
Induction motor
An induction or asynchronous motor is an AC electric motor in which the electric current in the rotor needed to produce torque is obtained by electromagnetic induction from the magnetic field of the stator winding. An induction motor therefore does not require mechanical commutation, separate-excitation or self-excitation for all or part of the energy transferred from stator to rotor, as in universal, DC and large synchronous motors. An induction motor's rotor can be either wound type or squirrel-cage type.Three-phase squirrel-cage induction motors are widely used in industrial drives because they are rugged, reliable and economical. Single-phase induction motors are used extensively for smaller loads, such as household appliances like fans. Although traditionally used in fixed-speed service, induction motors are increasingly being used with variable-frequency drives (VFDs) in variable-speed service. VFDs offer especially important energy savings opportunities for existing and prospective induction motors in variable-torque centrifugal fan, pump and compressor load applications. Squirrel cage induction motors are very widely used in both fixed-speed and variable-frequency drive (VFD) applications. Variable voltage and variable frequency drives are also used in variable-speed service.