AV4101271276
... A modified pulse width modulation technique for Z-source inverter based BLDC motor is proposed and analyzed in this project.The Z-source inverter can be used as Buck/Boost converter with lower cost and high efficiency. BLDC motors are used in electric vehicles where portability and efficiency are re ...
... A modified pulse width modulation technique for Z-source inverter based BLDC motor is proposed and analyzed in this project.The Z-source inverter can be used as Buck/Boost converter with lower cost and high efficiency. BLDC motors are used in electric vehicles where portability and efficiency are re ...
PID Voltage Control For DC Motor Using MATLAB Simulink and
... control capabilities which means the speed, torque and even direction of rotation can be changed. It is used in speed control applications due to its low cost, excellent drive performance and low maintenance. DC motors can also provide a high starting torque at low speed, and it is possible to obtai ...
... control capabilities which means the speed, torque and even direction of rotation can be changed. It is used in speed control applications due to its low cost, excellent drive performance and low maintenance. DC motors can also provide a high starting torque at low speed, and it is possible to obtai ...
UM0486
... time, some dead-time must be inserted between the turn-off of one transistor of the halfbridge and turn-on of its complementary device. The output voltage is mostly created by a pulse width modulation (PWM) technique. The three-phase voltage waves are shifted 120° to each other and thus a three-phas ...
... time, some dead-time must be inserted between the turn-off of one transistor of the halfbridge and turn-on of its complementary device. The output voltage is mostly created by a pulse width modulation (PWM) technique. The three-phase voltage waves are shifted 120° to each other and thus a three-phas ...
Learning Examples | Foundations | Hacking | Links
... for any purpose. To maintain compatibility with existing drivers, however, we will limit our misuse of these pins. If we only wanted to support a single motor, it turns out that the logic on the standard 5.25 inch diskette drive can, with an appropriate cable, be driven directly from the parallel po ...
... for any purpose. To maintain compatibility with existing drivers, however, we will limit our misuse of these pins. If we only wanted to support a single motor, it turns out that the logic on the standard 5.25 inch diskette drive can, with an appropriate cable, be driven directly from the parallel po ...
What is drive system efficiency and why is it
... Transformer losses – Core losses similar to those of the motor stator, eddy current losses, which are proportional to current and frequency squared, and heating losses (I2R) are generated by the winding and iron core of VFD input power transformer. It is important to note that although some VFDs can ...
... Transformer losses – Core losses similar to those of the motor stator, eddy current losses, which are proportional to current and frequency squared, and heating losses (I2R) are generated by the winding and iron core of VFD input power transformer. It is important to note that although some VFDs can ...
Introduction to Doubly-Fed Induction Generator for Wind Power
... (DFIG) system. The DFIG is currently the system of choice for multi-MW wind turbines. 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 ...
... (DFIG) system. The DFIG is currently the system of choice for multi-MW wind turbines. 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 ...
SNAPPAC - Extron Company
... this disconnected. Motors with additional field leads marked F3 and F4 are for special field connections. Check motor manufacturer supplied connection diagrams before operation. The standard direction of the motor rotation is counter clockwise (CCW) looking at the end opposite the drive shaft. Extro ...
... this disconnected. Motors with additional field leads marked F3 and F4 are for special field connections. Check motor manufacturer supplied connection diagrams before operation. The standard direction of the motor rotation is counter clockwise (CCW) looking at the end opposite the drive shaft. Extro ...
Photo 7: Stator coils can be independently tested
... more common, especially when assessing high value equipment or where an unexpected failure could cause considerable disruption. These cameras can be used to analyse the running temperatures of bearings, motors, electrical connections and other equipment and, as such, can indicate potential areas for ...
... more common, especially when assessing high value equipment or where an unexpected failure could cause considerable disruption. These cameras can be used to analyse the running temperatures of bearings, motors, electrical connections and other equipment and, as such, can indicate potential areas for ...
DC Machines
... a great boost with the invention of storage batteries. This enabled the research work on moving charges or currents. It was soon discovered ( in 1820 ) that, these electric currents are also associated with magnetic field like a load stone. This led to the invention of an electromagnet. Hardly a yea ...
... a great boost with the invention of storage batteries. This enabled the research work on moving charges or currents. It was soon discovered ( in 1820 ) that, these electric currents are also associated with magnetic field like a load stone. This led to the invention of an electromagnet. Hardly a yea ...
on the damper cage bars` currents calculation for salient pole large
... in each damper bar. In this paper two methods for calculating the parameters and the damper bar currents are presented. The first method, a field-circuit approach, is based on grouping two symmetrically located bars into loops. A sinusoidal distribution of currents in the damper winding is assumed [ ...
... in each damper bar. In this paper two methods for calculating the parameters and the damper bar currents are presented. The first method, a field-circuit approach, is based on grouping two symmetrically located bars into loops. A sinusoidal distribution of currents in the damper winding is assumed [ ...
Magnetic Fields - Review
... This photograph shows the commutator of a motor made using many coils The use of many coils, each in a different plane, results in a more uniform torque being produced. The invention of the commutator was important for the development of electric motors, since it is the device that allows the curren ...
... This photograph shows the commutator of a motor made using many coils The use of many coils, each in a different plane, results in a more uniform torque being produced. The invention of the commutator was important for the development of electric motors, since it is the device that allows the curren ...
Second generation controller protocol
... This document specifies a new ASCII command line protocol to control the 2nd generation 5-phase motor controller. The controller shall respond to simple commands sent over the serial or USB connections. The protocol is a simple terminal style command line protocol. All commands shall be terminated w ...
... This document specifies a new ASCII command line protocol to control the 2nd generation 5-phase motor controller. The controller shall respond to simple commands sent over the serial or USB connections. The protocol is a simple terminal style command line protocol. All commands shall be terminated w ...
DC3N DC Drive User Guide 1/4 to 2 HP, 115/230 VAC
... explosion by proper grounding, over-current protection, thermal protection and enclosure. Follow sound maintenance procedures. ATTENTION: Starting and stopping with the inhibit terminal pins does not disconnect AC power in the stop position. A hardwired AC power disconnection switch must be mounted ...
... explosion by proper grounding, over-current protection, thermal protection and enclosure. Follow sound maintenance procedures. ATTENTION: Starting and stopping with the inhibit terminal pins does not disconnect AC power in the stop position. A hardwired AC power disconnection switch must be mounted ...
1em-dcmachinesstructureworkingtypes
... eddy current losses. It may be provided with air ducts for the axial air flow for cooling purposes. Armature is keyed to the shaft. • Armature winding: It is usually a former wound copper coil which rests in armature slots. The armature conductors are insulated from each other and also from ...
... eddy current losses. It may be provided with air ducts for the axial air flow for cooling purposes. Armature is keyed to the shaft. • Armature winding: It is usually a former wound copper coil which rests in armature slots. The armature conductors are insulated from each other and also from ...
™ GSD4 Series DC Drives User Manual User Manual Number: IH-GSD4-User-M Page 1
... Equipment damage or serious injury to personnel can result from the failure to follow all applicable codes and standards. We do not guarantee the products described in this publication are suitable for your particular application, nor do we assume any responsibility for your product design, installa ...
... Equipment damage or serious injury to personnel can result from the failure to follow all applicable codes and standards. We do not guarantee the products described in this publication are suitable for your particular application, nor do we assume any responsibility for your product design, installa ...
Electrical Measurement Safety
... Leakage currents (common mode noise) • To measure, place current clamp around all three motor conductors at the inverter output • Use an oscilloscope to examine the CMN waveform • Possible solutions: special EMI suppression cables, isolation transformers on the line input, or a common mode choke ...
... Leakage currents (common mode noise) • To measure, place current clamp around all three motor conductors at the inverter output • Use an oscilloscope to examine the CMN waveform • Possible solutions: special EMI suppression cables, isolation transformers on the line input, or a common mode choke ...
SuPER Cart DC Motor Model and Ultra
... Next the model was used to compare simulated values to actual data found on the wiki (files dc_motor and dc_motor_solar) and the motor’s rated values. As you can see from Data Table 2 the simulated values are reasonably close to the actual data. One discrepancy is with the dc_motor file simulation w ...
... Next the model was used to compare simulated values to actual data found on the wiki (files dc_motor and dc_motor_solar) and the motor’s rated values. As you can see from Data Table 2 the simulated values are reasonably close to the actual data. One discrepancy is with the dc_motor file simulation w ...
ADVANCES IN INTERPRETING PARTIAL DISCHARGE TEST RESULTS FROM
... where PD may not occur every ac cycle.) For the purpose of this study, the complete pulse magnitude and pulse phase analysis plots are not analyzed. It has been noted in previous papers that Qm is a reasonable predictor of winding insulation condition [9, 10]. That is, a high Qm measured in a windin ...
... where PD may not occur every ac cycle.) For the purpose of this study, the complete pulse magnitude and pulse phase analysis plots are not analyzed. It has been noted in previous papers that Qm is a reasonable predictor of winding insulation condition [9, 10]. That is, a high Qm measured in a windin ...
ha0220T_7_LD_Scanning Galvo System.fm
... controller board(s) as this power supply has been specifically designed for this purpose. The GPS011 can power up to two driver cards under any drive conditions and is supplied with all the cables required to connect to the driver cards. However, customers also have the option of using a third-party ...
... controller board(s) as this power supply has been specifically designed for this purpose. The GPS011 can power up to two driver cards under any drive conditions and is supplied with all the cables required to connect to the driver cards. However, customers also have the option of using a third-party ...
and 2 - Faculty of Engineering
... than the primary voltage by 10, and therefore the transformer is called a step-down transformer. The purpose of this experiment is to study the behavior and circuit model of single-phase transformer as reflected by its internal parameters Running a transformer at no-load, yields a very small voltage ...
... than the primary voltage by 10, and therefore the transformer is called a step-down transformer. The purpose of this experiment is to study the behavior and circuit model of single-phase transformer as reflected by its internal parameters Running a transformer at no-load, yields a very small voltage ...
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.