L0446166
... if the output frequency of the variable frequency drive is zero. However, by careful design of the control system it is possible to have the minimum frequency in the range 0.5 Hz to 1 Hz that is enough to make possible to start an induction motor with full torque from a standstill situation. A rever ...
... if the output frequency of the variable frequency drive is zero. However, by careful design of the control system it is possible to have the minimum frequency in the range 0.5 Hz to 1 Hz that is enough to make possible to start an induction motor with full torque from a standstill situation. A rever ...
Introduction to Doubly-Fed Induction Generator for Wind Power
... The aerodynamic system must be capable of operating over a wide wind speed range in order to achieve optimum aerodynamic efficiency by tracking the optimum tip-speed ratio. Therefore, the generator’s rotor must be able to operate at a variable rotational speed. The DFIG system therefore operates in ...
... The aerodynamic system must be capable of operating over a wide wind speed range in order to achieve optimum aerodynamic efficiency by tracking the optimum tip-speed ratio. Therefore, the generator’s rotor must be able to operate at a variable rotational speed. The DFIG system therefore operates in ...
motors and generators
... Proper lubrication and cleaning provide t h e best preventive maintenance. Lubrication is generally provided by one of two methods, either wool packed oil cups or grease cups. Motors with ball bearings are provided with grease cups or removable bearing caps closed with pipe plugs. One full turn of e ...
... Proper lubrication and cleaning provide t h e best preventive maintenance. Lubrication is generally provided by one of two methods, either wool packed oil cups or grease cups. Motors with ball bearings are provided with grease cups or removable bearing caps closed with pipe plugs. One full turn of e ...
T4903127132
... This paper presents Direct Torque Control (DTC) using Space Vector Modulation (SVM) for an induction motor drive fed from a photovoltaic multilevel inverter (PV-MLI). The system consists of two main parts PV DC power supply (PVDC) and MLI. The PVDC is used to generate DC isolated sources with certai ...
... This paper presents Direct Torque Control (DTC) using Space Vector Modulation (SVM) for an induction motor drive fed from a photovoltaic multilevel inverter (PV-MLI). The system consists of two main parts PV DC power supply (PVDC) and MLI. The PVDC is used to generate DC isolated sources with certai ...
2014 Influence of Discrete Inductance Curves on The Simulation of a Round Rotor Generator Using Coupled Circuit Method
... elegant solution to determine continuous functions for the inductance and inductance derivative curves. It removes some aliasing effects that may arise when too little angular positions are used in the identification of the curves. This can be done since the harmonic orders can be chosen. The drawba ...
... elegant solution to determine continuous functions for the inductance and inductance derivative curves. It removes some aliasing effects that may arise when too little angular positions are used in the identification of the curves. This can be done since the harmonic orders can be chosen. The drawba ...
Complete PDF Edition (2,896 KB)
... industry-leading performance and reliability in a compact form factor. Their features include open networking support, simpler operation and maintenance, and multinational safety standards compliance. An example is shown in Fig. 1. Mitsubishi Electric has developed a single module containing all maj ...
... industry-leading performance and reliability in a compact form factor. Their features include open networking support, simpler operation and maintenance, and multinational safety standards compliance. An example is shown in Fig. 1. Mitsubishi Electric has developed a single module containing all maj ...
Interactive computer aided design of permanent magnet DC motors
... increase in the amount of research carried out on developing CAD software for the design of electrical machines. Much of this research has been dedicated to improving the accuracy of the machine models used in the packages, with particular emphasis being placed on the use of finite element analysis. ...
... increase in the amount of research carried out on developing CAD software for the design of electrical machines. Much of this research has been dedicated to improving the accuracy of the machine models used in the packages, with particular emphasis being placed on the use of finite element analysis. ...
Permanent Magnet Synchronous Motors (PMSM). Parameters
... Permanent magnet synchronous motors are increasing applied in several areas such as traction, automobiles, robotics and aerospace technology. The power density of permanent magnet synchronous motor is higher than one of induction motor with the same ratings due to the no stator power dedicated to th ...
... Permanent magnet synchronous motors are increasing applied in several areas such as traction, automobiles, robotics and aerospace technology. The power density of permanent magnet synchronous motor is higher than one of induction motor with the same ratings due to the no stator power dedicated to th ...
Instructions for SLO-SYN® MICRO SERIES Translator Oscillator
... SLO-SYN Micro Series drives use modem solid-state electronics such as microprocessors to provide the features needed for advanced motion control applications. In some cases, these applications produce electromagnetic interference (EMI, or electrical “noise”) that may cause inappropriate operation of ...
... SLO-SYN Micro Series drives use modem solid-state electronics such as microprocessors to provide the features needed for advanced motion control applications. In some cases, these applications produce electromagnetic interference (EMI, or electrical “noise”) that may cause inappropriate operation of ...
TEMP EFFECTS full paper Jan3.indd
... physics of the magnet material used, overall flux density will change at a given percentage with an increase in magnet temperature. As the material temperature increases, atomic vibrations cause once-aligned magnetic moments to “randomize” resulting in a decrease in magnetic flux density. Assuming t ...
... physics of the magnet material used, overall flux density will change at a given percentage with an increase in magnet temperature. As the material temperature increases, atomic vibrations cause once-aligned magnetic moments to “randomize” resulting in a decrease in magnetic flux density. Assuming t ...
BS31473481
... link is more in demand. The single-stage PFC converters operate with only one controller to regulate the DC link voltage along with the power factor correction. The absence of a second controller has a greater impact on the performance of single-stage PFC converters and requires a design to operate ...
... link is more in demand. The single-stage PFC converters operate with only one controller to regulate the DC link voltage along with the power factor correction. The absence of a second controller has a greater impact on the performance of single-stage PFC converters and requires a design to operate ...
RD-021M8
... ◇The voltage/current of the input/output terminals conforms to the ratings in the specifications. ◇Input/output terminals are not incorrectly wired or accidentally short-circuited. ◇Do not short resistance terminals (R-A and R-B) to GND. ◇Do not use with the motor except the stepping motor. ◇Operate ...
... ◇The voltage/current of the input/output terminals conforms to the ratings in the specifications. ◇Input/output terminals are not incorrectly wired or accidentally short-circuited. ◇Do not short resistance terminals (R-A and R-B) to GND. ◇Do not use with the motor except the stepping motor. ◇Operate ...
Journal of Environmental Science, Computer Science and
... Abstract: The speed control scheme of DC motor and provides a comparative analysis of firing angle based speed control technique. The best control characteristics of DC motor have used in industries for different rang of loading condition. A dual converter comprised of two single phase AC-DC thyrist ...
... Abstract: The speed control scheme of DC motor and provides a comparative analysis of firing angle based speed control technique. The best control characteristics of DC motor have used in industries for different rang of loading condition. A dual converter comprised of two single phase AC-DC thyrist ...
LE Drive - Compumotor
... By increasing the frequency of the square wave you 107111 increase the rotational velocity of the motor. The motor should be able to accept up to 125 kHZ (5 RPS) without stalling provided the motor has not been accelerated too quickly. The direction of the motor can be changed by putting 20 mA of cu ...
... By increasing the frequency of the square wave you 107111 increase the rotational velocity of the motor. The motor should be able to accept up to 125 kHZ (5 RPS) without stalling provided the motor has not been accelerated too quickly. The direction of the motor can be changed by putting 20 mA of cu ...
Drive Solutions for the Global Cement Industry
... Why Use Electrical Variable Frequency Drives? Here are some of the reasons to use electrical medium voltage drives: Increased Reliability Pages 5, 5, 9 Variable speed motor-drive systems are more reliable than traditional mechanical approaches such as using louvers, valves, gears, or turbines to co ...
... Why Use Electrical Variable Frequency Drives? Here are some of the reasons to use electrical medium voltage drives: Increased Reliability Pages 5, 5, 9 Variable speed motor-drive systems are more reliable than traditional mechanical approaches such as using louvers, valves, gears, or turbines to co ...
Platforma mini robota edukacyjnego AMRobot - eCube
... mini-robot platform itself (without additional enclosure) is composed of only two parts (panels) which are joined together by the means of four spacer sleeves and M3 screws. An additional advantage of the platform are small dimensions (140 mm x 125 mm), reliability and construction endurance. These ...
... mini-robot platform itself (without additional enclosure) is composed of only two parts (panels) which are joined together by the means of four spacer sleeves and M3 screws. An additional advantage of the platform are small dimensions (140 mm x 125 mm), reliability and construction endurance. These ...
All About Stepper Motors
... One of the first things to consider is the work that the motor has to do. As you might expect, larger motors are capable of delivering more power. Stepper motors come in sizes ranging from smaller than a peanut to big NEMA 57 monsters. Most motors have torque ratings. This is what you need to look a ...
... One of the first things to consider is the work that the motor has to do. As you might expect, larger motors are capable of delivering more power. Stepper motors come in sizes ranging from smaller than a peanut to big NEMA 57 monsters. Most motors have torque ratings. This is what you need to look a ...
File - ELECTRICAL ENGINEERING DEPT, DCE
... 5. Under this no load condition, one set of readings namely, applied voltage (VL), armature current (Ia), field current (If), the two spring balance readings (F1and F2) and motor speed (N) are noted down in the tabular column. 6. The load on the motor is increased in steps gradually and at each step ...
... 5. Under this no load condition, one set of readings namely, applied voltage (VL), armature current (Ia), field current (If), the two spring balance readings (F1and F2) and motor speed (N) are noted down in the tabular column. 6. The load on the motor is increased in steps gradually and at each step ...
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.