electric motors for centrifugal compressor drives
... Moffet Field, California, have been operating for many years. ...
... Moffet Field, California, have been operating for many years. ...
BO044402410
... In this paper, a modular Simulink implementation of an induction machine model is described in a step-by-step approach. With the modular system, each block solves one of the model equations; therefore, unlike in black box models, all of the machine parameters are accessible for control and verificat ...
... In this paper, a modular Simulink implementation of an induction machine model is described in a step-by-step approach. With the modular system, each block solves one of the model equations; therefore, unlike in black box models, all of the machine parameters are accessible for control and verificat ...
Controls_Paper_4
... circuit to be shut off rather than disconnecting the power source whenever parts are changed. The switch of choice is a single pole single throw. Since only an on/off switch is needed, the other side is left open to simulate an off. This does the same thing as an off switch would do by creating a co ...
... circuit to be shut off rather than disconnecting the power source whenever parts are changed. The switch of choice is a single pole single throw. Since only an on/off switch is needed, the other side is left open to simulate an off. This does the same thing as an off switch would do by creating a co ...
iii. design and construction of afpmsg
... Permanent magnet generators have been used for wind turbines for many years. Many small wind turbine manufacturers use direct-drive permanent magnet generators. In this paper, three-phase axial-flux permanent magnet synchronous generator (AFPMSG) is driven by wind turbine. Therefore, evaluation of t ...
... Permanent magnet generators have been used for wind turbines for many years. Many small wind turbine manufacturers use direct-drive permanent magnet generators. In this paper, three-phase axial-flux permanent magnet synchronous generator (AFPMSG) is driven by wind turbine. Therefore, evaluation of t ...
EE 1190106
... based on the above assumption it would not be possible to determine whether or not the DFIG will actually trip following a fault. In order to resolve the identified problems, a switch-by-switch model of voltage-fed, current controlled PWM converters, where triangular carrier-based Sinusoidal PWM (SP ...
... based on the above assumption it would not be possible to determine whether or not the DFIG will actually trip following a fault. In order to resolve the identified problems, a switch-by-switch model of voltage-fed, current controlled PWM converters, where triangular carrier-based Sinusoidal PWM (SP ...
seminar on wireless energy transfer
... power transfer that, obviously, sends energy through the air in the form of microwaves (other forms can use lasers and visible light). • MPT has a range miles longer than its inductive counterparts, and it’s being investigated as a way to beam power to space or vice versa ...
... power transfer that, obviously, sends energy through the air in the form of microwaves (other forms can use lasers and visible light). • MPT has a range miles longer than its inductive counterparts, and it’s being investigated as a way to beam power to space or vice versa ...
Induction versus Conduction
... Hand Generator (The Ancient) How Does a Hand Generator Light the Bulb? Coils of wire on the axle are rotated between the poles of strong magnets. This generates alternating current (try attaching a galvanometer and observe the readings). The current is strong enough to heat the filament in the ligh ...
... Hand Generator (The Ancient) How Does a Hand Generator Light the Bulb? Coils of wire on the axle are rotated between the poles of strong magnets. This generates alternating current (try attaching a galvanometer and observe the readings). The current is strong enough to heat the filament in the ligh ...
hopkinson`s test - Bhagwant University
... does not take any account of the stray load losses occurring in DC machines under loaded condition. As such the efficiency, calculated by Swinburne’s test is comparatively higher than the actual one. Hopkinson’s test needs two identical DC machines coupled mechanically and connected electrically as ...
... does not take any account of the stray load losses occurring in DC machines under loaded condition. As such the efficiency, calculated by Swinburne’s test is comparatively higher than the actual one. Hopkinson’s test needs two identical DC machines coupled mechanically and connected electrically as ...
design and real time implementation of control algorithm for
... distortion. This drive system has advantages like reduced total harmonic distortion and higher torque. The module of the Three phase inverter system controlled Permanent magnet Brushless DC motor is simulated and implemented. The experimental results are compared with simulation results. ...
... distortion. This drive system has advantages like reduced total harmonic distortion and higher torque. The module of the Three phase inverter system controlled Permanent magnet Brushless DC motor is simulated and implemented. The experimental results are compared with simulation results. ...
FlexSEA-Execute: Advanced Motion Controller for Wearable Robotic
... and inefficiency to the system. The control algorithms used tend to emulate natural joint motion and they have to adapt to changing environmental conditions. The robot state and the environmental parameters are measured by sensors. Series-elastic actuators (SEA) [13], commonly used in wearable robot ...
... and inefficiency to the system. The control algorithms used tend to emulate natural joint motion and they have to adapt to changing environmental conditions. The robot state and the environmental parameters are measured by sensors. Series-elastic actuators (SEA) [13], commonly used in wearable robot ...
Induction-Motor Starting
... reduced voltage using an autotransformer with a 65-% tap. Determine • a) locked-rotor torque and expected average in-rush current to the stator if the motor is started at rated voltage ECE 441 ...
... reduced voltage using an autotransformer with a 65-% tap. Determine • a) locked-rotor torque and expected average in-rush current to the stator if the motor is started at rated voltage ECE 441 ...
3
... three coupled coils namely, armature d-coil, field winding f, and damper winding h. By the application of per unit system, all the quantities get referred to the armature side. All the reactances are expressed in per unit. „la‟ is the armature leakage reactance. „lf‟ and „ld‟ can be viewed as the le ...
... three coupled coils namely, armature d-coil, field winding f, and damper winding h. By the application of per unit system, all the quantities get referred to the armature side. All the reactances are expressed in per unit. „la‟ is the armature leakage reactance. „lf‟ and „ld‟ can be viewed as the le ...
Electrical Machine & Applications 1
... The brush voltage drop represented by battery, Vbrush opposing the direction of current flow in the machine. ...
... The brush voltage drop represented by battery, Vbrush opposing the direction of current flow in the machine. ...
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.