Starting performance analysis
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166 - Line Start Simulation of an Induction Machine Using a Control Simulator and the JMAG-RT System |
Module:FQ,LS,RT |
2011-07-12 |
Collaborative design is difficult because the control and motor are designed independently. However, the challenges of a design need to be defined at an beginning of the development process using highly accurate simulations while having collaboration between the motor and control designs to realize the current demands of motors. A simulation that accounts for both the nonlinear characteristics of the motor and the control characteristics of the motor drive can be run by linking to a circuit control simulator using JMAG-RT.
This example presents the use of a line start analysis for an induction machine using a control simulator and the JMAG-RT System.
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162 - Drive Simulation of an SR Motor using a Control Simulator and the JMAG-RT System |
Module:DP,RT |
2011-07-12 |
Collaborative design is difficult because the control and motor are designed
independently. Linking a magnetic field analysis and a circuit/control
analysis is necessary to evaluate the precise motor behavior accurately
using simulation to reinforce motor development. A simulation that accounts
for both the nonlinear characteristics of the motor and the drive control
characteristics can be run by linking to a circuit/control simulator using
JMAG.
This example presents the use of a control simulator and the JMAG-RT system
to simulate the drive of an SR motor.
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161 - Line Start Analysis of a Three-phase Induction Machine |
Module:DP |
2011-07-12 |
Line starting that is connected directly to the power supply of an electric machine is the simplest starting method of induction machines. A large current flows at the initial start up for line starting because the impedance at a stationary state is smaller than the impedance at a steady drive state. Understanding the basic characteristics for starting the machine using simulation is advantageous because of the effects to the power supply, the electromagnetic force acting on the coil, and then thermal capacity when starting the induction motor are vital.
This example presents the use of a magnetic field analysis to obtain the starting characteristics, such as the rotation speed variations, by simulating the line starting for an induction machine.
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112 - Starting Thrust Force Analysis of a Linear Induction Motor
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Module:FQ |
2011-01-17 |
A linear induction motor can be constructed at low cost, because the motor
can use a primary side made of coil, and secondary side made of a conductor
that is not magnetized, such as aluminum or copper. A linear induction
motor has disadvantages such as multiple eddy currents flowing in the secondary
conductor sheet and a vast amount of leakage flux between the mover and
stator. For this reason, designing the linear induction motor by accurately
evaluating the thrust force provides improved efficiency.This example presents
the use of a magnetic field analysis to obtain the starting thrust force
of a linear induction motor.
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111 - Starting Performance Analysis of a Universal Motor |
Module:DP |
2009-04-14 |
A universal motor is a motor that rotates on both direct and alternating currents. A universal motor is used in home appliances and industrial machines because these motors are robust and compact with a simple construction. However, problems such as vibration and a reduction in starting torque caused by the cogging torque occur as the size of the motor becomes smaller. Evaluating the starting performance of a universal motor at the design stage is necessary to resolve these problems.
This example presents the use of a magnetic field analysis to obtain the speed versus time graph, the current waveform, and the torque versus time graph for a universal motor.
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38 - Starting Performance Analysis of a Single Phase Induction Motor
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Module:DP |
2011-02-28 |
Single-phase AC is the most commonly used power supply, and an induction
motor is robust and its cost is low. So the induction motor that is powered
with single-phase AC can be readily usable motor. Unlike three-phase AC,
however, single-phase AC alone cannot generate the rotating magnetic field
and the direction of the rotation cannot be specified either. So it cannot
start the induction motor. For this reason, an auxiliary winding needs
to be placed to help the motor start. This note presents the use of magnetic
field analysis to evaluate the starting performance of the induction motor
with use of the auxiliary winding.
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