... 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 ...
Tachogenerator PDF document
... A.C. Rectified Tachogenerator Where improved speedholding (±1%) is required from motors running at 50 r/min and above, an a.c. rectified tachogenerator can be easily retrofitted to all the Stockline d.c. motors. The tachogenerator could also be fitted directly to machinery shafts or the back of a.c. ...
... A.C. Rectified Tachogenerator Where improved speedholding (±1%) is required from motors running at 50 r/min and above, an a.c. rectified tachogenerator can be easily retrofitted to all the Stockline d.c. motors. The tachogenerator could also be fitted directly to machinery shafts or the back of a.c. ...
pub3241csoftstartersforelectricmotors
... that allows the motor to start while slowly applying the shaft torque to the load. Electrically, a soft starter is a device that decreases the torque by reducing the voltage by changing the motor connectivity. The connectivity of the motor windings is altered so motor torque is reduced at startup. T ...
... that allows the motor to start while slowly applying the shaft torque to the load. Electrically, a soft starter is a device that decreases the torque by reducing the voltage by changing the motor connectivity. The connectivity of the motor windings is altered so motor torque is reduced at startup. T ...
CE33493496
... equipments, robotics, adjustable speed drives and electric vehicles. The growth in the market of PM motor drives has demanded the need of simulation tools capable of handling motor drive simulations. Simulations have helped the process of developing new systems including motor drives, by reducing co ...
... equipments, robotics, adjustable speed drives and electric vehicles. The growth in the market of PM motor drives has demanded the need of simulation tools capable of handling motor drive simulations. Simulations have helped the process of developing new systems including motor drives, by reducing co ...
torquespeed
... the motor and the tachometer. A constant voltage will drive the motor from the bench power supply. A clamp attached to the particle brake will be attached to the cantilever force transducer that you calibrated. The particle brake will be controlled from the computer via the power amplifier. The comp ...
... the motor and the tachometer. A constant voltage will drive the motor from the bench power supply. A clamp attached to the particle brake will be attached to the cantilever force transducer that you calibrated. The particle brake will be controlled from the computer via the power amplifier. The comp ...
Appendix A: Experimental Apparatus
... (or ‘compact-rio’), the extra rotor resistance, current and voltage sensors and several contactors along with various circuit breakers and fuses to protect the machines from overload conditions. The variable autotransformer is the device on the middle shelf of the control unit. It can be thought of ...
... (or ‘compact-rio’), the extra rotor resistance, current and voltage sensors and several contactors along with various circuit breakers and fuses to protect the machines from overload conditions. The variable autotransformer is the device on the middle shelf of the control unit. It can be thought of ...
P6 Revision Questions Motors and Generators
... He wants to find out what happens when a current passes through the wire. When he switches on, the wire moves out of the gap between the poles of the magnet. ...
... He wants to find out what happens when a current passes through the wire. When he switches on, the wire moves out of the gap between the poles of the magnet. ...
everything you wanted to know about stepper motors
... direction (unipolar) or in both directions (Bipolar). Unipolar motors are much easier to drive as you simply switch each coil on sequentially and the rotor will move to its next detent position, four simple transistors and a little logic circuitry will achieve this easily. Bipolar on the other hand ...
... direction (unipolar) or in both directions (Bipolar). Unipolar motors are much easier to drive as you simply switch each coil on sequentially and the rotor will move to its next detent position, four simple transistors and a little logic circuitry will achieve this easily. Bipolar on the other hand ...
ac synchronous generators
... The internal periphery of a three-phase stator normally has a number of slots, the number typically being an integer multiple of six. A three-phase machine will require three identical coils of wire, each with many turns, and each coil is distributed in multiple stator slots. An example of one phas ...
... The internal periphery of a three-phase stator normally has a number of slots, the number typically being an integer multiple of six. A three-phase machine will require three identical coils of wire, each with many turns, and each coil is distributed in multiple stator slots. An example of one phas ...
SmartStart:Solid State Starter
... (√3 factor) wiring configuration, allowing the compact design of SmartStart to accommodate a higher motor amp rating. ...
... (√3 factor) wiring configuration, allowing the compact design of SmartStart to accommodate a higher motor amp rating. ...
DC motors direction and speed control by(Roman)
... using Timers and Interrupts, with 14 steps of pulse width. It is more than enough in my robotic application. Remember when testing speed control on dc motors; it must be loaded (not at free run without any torque load) because you may not see the effect of slowing down. ...
... using Timers and Interrupts, with 14 steps of pulse width. It is more than enough in my robotic application. Remember when testing speed control on dc motors; it must be loaded (not at free run without any torque load) because you may not see the effect of slowing down. ...
Connection diagrams - Motoren Desmedt NV
... At low speed the winding is connected in delta, for which there are two options: with 6 terminals for outputs lower than 2,2 kW and possibly 9 terminals for greater outputs. Dahlander C connection Y / YY; star/double star The nominal output at the low speed is 20 % to 30 % of the output at the high ...
... At low speed the winding is connected in delta, for which there are two options: with 6 terminals for outputs lower than 2,2 kW and possibly 9 terminals for greater outputs. Dahlander C connection Y / YY; star/double star The nominal output at the low speed is 20 % to 30 % of the output at the high ...
Electric motor
An electric motor is an electrical machine that converts electrical energy into mechanical energy. The reverse of this would be the conversion of mechanical energy into electrical energy and is done by an electric generator.In normal motoring mode, most electric motors operate through the interaction between an electric motor's magnetic field and winding currents to generate force within the motor. In certain applications, such as in the transportation industry with traction motors, electric motors can operate in both motoring and generating or braking modes to also produce electrical energy from mechanical energy.Found in applications as diverse as industrial fans, blowers and pumps, machine tools, household appliances, power tools, and disk drives, electric motors can be powered by direct current (DC) sources, such as from batteries, motor vehicles or rectifiers, or by alternating current (AC) sources, such as from the power grid, inverters or generators. Small motors may be found in electric watches. General-purpose motors with highly standardized dimensions and characteristics provide convenient mechanical power for industrial use. The largest of electric motors are used for ship propulsion, pipeline compression and pumped-storage applications with ratings reaching 100 megawatts. Electric motors may be classified by electric power source type, internal construction, application, type of motion output, and so on.Electric motors are used to produce linear or rotary force (torque), and should be distinguished from devices such as magnetic solenoids and loudspeakers that convert electricity into motion but do not generate usable mechanical powers, which are respectively referred to as actuators and transducers.