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Matlab code for single phase induction motor

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14 January 2019

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You can parameterize this block in terms of the preceding equivalent circuit model parameters or in terms of the motor ratings the block uses to derive these parameters. The default value is 1 Ω. This parameter is only visible when you select By motor ratings for the Model parameterization parameter and From motor efficiency for the R1 parameterization parameter.

Stator inductance L1 Inductance of the stator winding. The default value is 1 Ω. This is the default method. Use the thermal ports to simulate the effects of copper resistance losses that convert electrical power to heat.

Documentation - The default value is 1.

You can parameterize this block in terms of the preceding equivalent circuit model parameters or in terms of the motor ratings the block uses to derive these parameters. This block produces a positive torque acting from the mechanical C to R ports. Thermal Ports The block has two optional thermal ports, one per winding, hidden by default. This action displays the thermal ports on the block icon, and adds the Temperature Dependence and Thermal Port tabs to the block dialog box. These tabs are described further on this reference page. Use the thermal ports to simulate the effects of copper resistance losses that convert electrical power to heat. For more information on using thermal ports in actuator blocks, see. This is the default method. Stator resistance R1 Resistance of the stator winding. The default value is 1 Ω. This parameter is only visible when you select By equivalent circuit parameters for the Model parameterization parameter. Rotor resistance R2 Resistance of the rotor, specified with respect to the stator. The default value is 1 Ω. This parameter is only visible when you select By equivalent circuit parameters for the Model parameterization parameter. Stator inductance L1 Inductance of the stator winding. The default value is 0. This parameter is only visible when you select By equivalent circuit parameters for the Model parameterization parameter. Rotor inductance L2 Inductance of the rotor, specified with respect to the stator. The default value is 0. This parameter is only visible when you select By equivalent circuit parameters for the Model parameterization parameter. Magnetizing inductance Lm Magnetizing inductance of the stator. This parameter is only visible when you select By equivalent circuit parameters for the Model parameterization parameter. Its value is hard to estimate from motor parameters, but the effect is usually small. If you do not know its value, use a typical value of 25 times the Stator inductance L1 value. The default value is 0. Rated mechanical power Mechanical power the motor delivers when running at the rated speed. The default value is 825 W. This parameter is only visible when you select By motor ratings for the Model parameterization parameter. Rated speed Speed at which the motor delivers the specified Rated mechanical power value. The default value is 3. This parameter is only visible when you select By motor ratings for the Model parameterization parameter. Rated RMS line-to-line voltage Line-to-line voltage at which the motor ratings are specified. The default value is 200 V. This parameter is only visible when you select By motor ratings for the Model parameterization parameter. Rated supply frequency Frequency of the AC supply voltage at which the motor ratings are specified. The default value is 60 hertz. This parameter is only visible when you select By motor ratings for the Model parameterization parameter. Rated RMS line current Line current at which the motor delivers the specified Rated mechanical power value. The default value is 2. This parameter is only visible when you select By motor ratings for the Model parameterization parameter. This is the default method. This parameter is only visible when you select By motor ratings for the Model parameterization parameter. Motor efficiency percent the percentage of input power to the motor that gets delivered to the mechanical load when running at the Rated speed value. The default value is 95. This parameter is only visible when you select By motor ratings for the Model parameterization parameter and From motor efficiency for the R1 parameterization parameter. Motor power factor The cosine of the angle by which the supply current lags the supply voltage when running at the Rated mechanical power value. The default value is 0. This parameter is only visible when you select By motor ratings for the Model parameterization parameter and From power factor for the R1 parameterization parameter. Measured stator resistance R1 the measured stator resistance. The default value is 1 Ω. This parameter is only visible when you select By motor ratings for the Model parameterization parameter and Use measured stator resistance R1 for the R1 parameterization parameter. Number of pole pairs Total number of pole pairs for the motor. The default value is 1. Number of phases Number of supply phases. The default value is 3. The first element corresponds to the stator, and the second to rotor. Measurement temperature The temperature for which motor parameters are defined. The default value is 25 °C. The thermal mass is the energy required to raise the temperature by one degree.
Rotor resistance R2 Resistance of the rotor, specified with respect to the stator. The default value is 0. Civil power factor The cosine of the angle by which the supply current lags the supply voltage when running at the Rated mechanical power value. The default value is 3. Thermal Ports The block has two optional thermal ports, one per winding, hidden by default. The first sin corresponds to the stator, and the second to rotor. Stator resistance R1 Resistance of the stator winding. Rated speed Speed at which the motor delivers the specified Rated mechanical power value. Simulation and hardware results reveal that the system is versatile. The Problem:- Design a 30HP, 3 limbo, 440V, 960 r. Stator inductance L1 Inductance of the stator winding.

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