Course introduction
... POWER ELECTRONICS AND DRIVES SEE 4433 2012/2013, Sem II Dr. Nik Rumzi Nik Idris SPACE, JB ...
... POWER ELECTRONICS AND DRIVES SEE 4433 2012/2013, Sem II Dr. Nik Rumzi Nik Idris SPACE, JB ...
Simple electrical engineering projects
... One design uses a car brake disk with magnets mounted around the periphery. A coil is placed near the disk and when the disk rotates a voltage is generated Its an ac voltage and needs to be rectified (converted to dc) before it can be used to charge the battery ...
... One design uses a car brake disk with magnets mounted around the periphery. A coil is placed near the disk and when the disk rotates a voltage is generated Its an ac voltage and needs to be rectified (converted to dc) before it can be used to charge the battery ...
AVR496: Brushless DC Motor Control using
... Generating PWM signals with dead-time with ATtiny261/461/861 The Timer/Counter1 (TC1) module of the ATtinyX61 family is very well suited for driving threephase motors. It can be run from a 64MHz PLL, and has a resolution of 10 bits. Six PWM outputs can be generated from this timer, grouped into thre ...
... Generating PWM signals with dead-time with ATtiny261/461/861 The Timer/Counter1 (TC1) module of the ATtinyX61 family is very well suited for driving threephase motors. It can be run from a 64MHz PLL, and has a resolution of 10 bits. Six PWM outputs can be generated from this timer, grouped into thre ...
SineFormer Technology - Sine-wave EMC Output Filters
... simultaneously converts the phaseto-phase voltages into a sinusoidal signal, damps the common mode currents and also forms the conductor-to-ground voltage to sine-shaped voltage. This offers users a number of key benefits. Voltage peaks that are harmful for the motor windings are suppressed and bear ...
... simultaneously converts the phaseto-phase voltages into a sinusoidal signal, damps the common mode currents and also forms the conductor-to-ground voltage to sine-shaped voltage. This offers users a number of key benefits. Voltage peaks that are harmful for the motor windings are suppressed and bear ...
Lecture V - AC Machines I
... electrical energy. It is less expensive to produce and transmit than direct current. For this reason, and because ac voltage is induced into the armature of all generators, ac machines are generally more practical. May function as a generator (mechanical to electrical) or a motor (electrical to me ...
... electrical energy. It is less expensive to produce and transmit than direct current. For this reason, and because ac voltage is induced into the armature of all generators, ac machines are generally more practical. May function as a generator (mechanical to electrical) or a motor (electrical to me ...
AUT 235 Motor Controls II - Alabama Community College System
... KSA B1.0 Use automatic and multi-speed B1.1 Install and troubleshoot star2 starters delta motors and starters B1.2 Install and troubleshoot multispeed motors and controllers ...
... KSA B1.0 Use automatic and multi-speed B1.1 Install and troubleshoot star2 starters delta motors and starters B1.2 Install and troubleshoot multispeed motors and controllers ...
Exploration for week 8
... of the transformer ports (sides) represents electrical variables and the other represents mechanical variables. Thus V1 and I1 represent voltage and current, respectively, as before. However, on side two, V2 is replaced by angular velocity ω2 and I2 is replaced by torque τ2 . The function of the mot ...
... of the transformer ports (sides) represents electrical variables and the other represents mechanical variables. Thus V1 and I1 represent voltage and current, respectively, as before. However, on side two, V2 is replaced by angular velocity ω2 and I2 is replaced by torque τ2 . The function of the mot ...
DC Machines
... armature winding. If the field of a D.C. generator is excited from an external source of power, the generator is said to be separately excited. However, a D.C. generator can also supply its own excitation; this feature is called self-excitation. This ability is due to the residual magnetism which re ...
... armature winding. If the field of a D.C. generator is excited from an external source of power, the generator is said to be separately excited. However, a D.C. generator can also supply its own excitation; this feature is called self-excitation. This ability is due to the residual magnetism which re ...
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.