Microelectromechanical Devices
... reactances, time constants, and resistances which are derived from stator measurements. Two time constants appear in the transient behavior of the rotor - a subtransient period (during the first few cycles of a short circuit of the windings) when the current decay is very rapid. This is followed by ...
... reactances, time constants, and resistances which are derived from stator measurements. Two time constants appear in the transient behavior of the rotor - a subtransient period (during the first few cycles of a short circuit of the windings) when the current decay is very rapid. This is followed by ...
Control characteristics for quasi-optimal operation of switched
... SRM with an induction torque meter. The motor was supplied by a converter that enables the independent regulation of all three control variables: phase voltage Uav (by means of the PWM method), switchon angle on and conduction angle z . The rotor position angle, and consequently the rotational s ...
... SRM with an induction torque meter. The motor was supplied by a converter that enables the independent regulation of all three control variables: phase voltage Uav (by means of the PWM method), switchon angle on and conduction angle z . The rotor position angle, and consequently the rotational s ...
Motor Circuit Analysis for Energy, Reliability and Production Cost
... doubles the applied frequency and views the resulting ratio between windings. This allows for early detection of turn to turn and coil to coil faults that would, otherwise, go undetected. ...
... doubles the applied frequency and views the resulting ratio between windings. This allows for early detection of turn to turn and coil to coil faults that would, otherwise, go undetected. ...
ASSP Technology for Industrial Motion Control - All
... A major concern of every system designer using a stepper-motor is how to drive this actuator without losing steps. Many parameters are influencing the correct motion and it is not always easy to find the right combination. [Ref 1]. Varying all kinds of settings to find the optimum can lead to a long ...
... A major concern of every system designer using a stepper-motor is how to drive this actuator without losing steps. Many parameters are influencing the correct motion and it is not always easy to find the right combination. [Ref 1]. Varying all kinds of settings to find the optimum can lead to a long ...
Quotations - School Of Engineering
... a pinch cock.) Standard set of weights to give a total pressure of 10kg/cm2 (comprising of assorted weights) 3 nos. of dial gauges 10mm travel with 0.002mm least count. Lab Vane Shear Test apparatus - Conform to IS 2720 (Part 30) Consist of a n Electric Motor adjustable in height to enable the vane ...
... a pinch cock.) Standard set of weights to give a total pressure of 10kg/cm2 (comprising of assorted weights) 3 nos. of dial gauges 10mm travel with 0.002mm least count. Lab Vane Shear Test apparatus - Conform to IS 2720 (Part 30) Consist of a n Electric Motor adjustable in height to enable the vane ...
Speed Control of High-Speed BLDC with Pulse Amplitude
... Boyina Ravi Kumar and K.Kranthi Pratap Singh : Speed Control of High-Speed BLDC with Pulse Amplitude Modulation Control applications in this category have some kind of power transmission, which could be mechanical gears or timer belts, or a simple belt driven system. In these applications, the dyna ...
... Boyina Ravi Kumar and K.Kranthi Pratap Singh : Speed Control of High-Speed BLDC with Pulse Amplitude Modulation Control applications in this category have some kind of power transmission, which could be mechanical gears or timer belts, or a simple belt driven system. In these applications, the dyna ...
VEM motors GmbH
... converter is suitable for feeding the synchronous motor. If there are any doubts, please contact the manufacturers of both components. During their mounting and dismantling, synchronous motors with permanentmagnet rotor emit magnetic stray fields, particularly the rotors of these motors can disturb ...
... converter is suitable for feeding the synchronous motor. If there are any doubts, please contact the manufacturers of both components. During their mounting and dismantling, synchronous motors with permanentmagnet rotor emit magnetic stray fields, particularly the rotors of these motors can disturb ...
Signal Injection in Sensorless PMSM Drives Equipped With Inverter
... and produce bearing currents. Voltage harmonics cause acoustic noise and power losses; the losses caused by eddy currents are a special concern in high-speed solid-rotor motors. ...
... and produce bearing currents. Voltage harmonics cause acoustic noise and power losses; the losses caused by eddy currents are a special concern in high-speed solid-rotor motors. ...
Experiment – 4 Characterization of DC Motor: Part 2
... In order to record the numerical values of currents and speed, add three Displays to the layout and assign them the speed and current variables. The control desk layout should look like as shown in Fig. 4.2. ...
... In order to record the numerical values of currents and speed, add three Displays to the layout and assign them the speed and current variables. The control desk layout should look like as shown in Fig. 4.2. ...
ACM - JNEC
... and low reactance. The resistance of the starting winding may be increased either by connecting a high resistance R in series with it or by using a high resistance fine copper wire for winding purposes. Hence as shows in fig.3 the current Is drawn by the starting winding logs behind the applied volt ...
... and low reactance. The resistance of the starting winding may be increased either by connecting a high resistance R in series with it or by using a high resistance fine copper wire for winding purposes. Hence as shows in fig.3 the current Is drawn by the starting winding logs behind the applied volt ...
A New Induction Motor V/F Control Method using Dspic30f5011
... 3. Shahriar Mohammadi, “Speed Control of Three Phase Induction Motor Using Fixed Pattern PWM Wave”, IEEE Trans, Industry Applications, 1993. 4. C.S. Kamble, J.G Chaudhari M.V Aware, “Digital Signal Processor Based V/F Controlled Induction Motor Drive”, IEEE Trans, Industry Applications, 2010. 5. M.S ...
... 3. Shahriar Mohammadi, “Speed Control of Three Phase Induction Motor Using Fixed Pattern PWM Wave”, IEEE Trans, Industry Applications, 1993. 4. C.S. Kamble, J.G Chaudhari M.V Aware, “Digital Signal Processor Based V/F Controlled Induction Motor Drive”, IEEE Trans, Industry Applications, 2010. 5. M.S ...
OMD23-2 Micro
... applications. Switching power supplies, which tend to be very cost efficient, are also suited for many stepper motor applications. However, their ability to provide surge currents is limited and may require additional capacitors to be added depending on your application. A single power supply can be ...
... applications. Switching power supplies, which tend to be very cost efficient, are also suited for many stepper motor applications. However, their ability to provide surge currents is limited and may require additional capacitors to be added depending on your application. A single power supply can be ...
Background Lecture - IEEE Real World Engineering Projects
... g varies over time – Typically a sinusoid, but maybe not ...
... g varies over time – Typically a sinusoid, but maybe not ...
Controlling DC Motors
... The direction of rotation of a DC motor may be reversed by interchanging its input voltage polarity. −Let’s assume that initially it is rotating in clockwise direction (a). −Then, it would start rotating in anticlockwise direction by the reversed polarity (b). −The direction (polarity) of the DC mot ...
... The direction of rotation of a DC motor may be reversed by interchanging its input voltage polarity. −Let’s assume that initially it is rotating in clockwise direction (a). −Then, it would start rotating in anticlockwise direction by the reversed polarity (b). −The direction (polarity) of the DC mot ...
DESCRIPTION
... accessory mounting provisions of most DC motors. Both stub shaft and through shaft mountings are accommodated for motor frame sizes from 180 through 500. This space saving design eliminates the need for costly adapters and shaft couplings. It not only saves installation time but, more importantly, c ...
... accessory mounting provisions of most DC motors. Both stub shaft and through shaft mountings are accommodated for motor frame sizes from 180 through 500. This space saving design eliminates the need for costly adapters and shaft couplings. It not only saves installation time but, more importantly, c ...
AC motor
An AC motor is an electric motor driven by an alternating current (AC). The AC motor commonly consists of two basic parts, an outside stationary stator having coils supplied with alternating current to produce a rotating magnetic field, and an inside rotor attached to the output shaft producing a second rotating magnetic field. The rotor magnetic field may be produced by permanent magnets, reluctance saliency, or DC or AC electrical windings.Less commonly, linear AC motors operate on similar principles as rotating motors but have their stationary and moving parts arranged in a straight line configuration, producing linear motion instead of rotation.