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    Ecen441 504post Lab4

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    api-241454978
    This lab report summarizes experiments with a 4-quadrant DC motor drive. In part 1, students built the DC motor circuit and tested the motor's speed, voltage and current when varying the control voltage from 1-10V in both clockwise and counterclockwise rotation. In part 2, they added an electrical load and repeated the tests under load. The results are recorded in tables. The discussion analyzes the linear relationships between control voltage, speed and armature voltage in each quadrant of operation.

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    Ecen441 504post Lab4

    Uploaded by

    api-241454978
    473 views8 pages
    This lab report summarizes experiments with a 4-quadrant DC motor drive. In part 1, students built the DC motor circuit and tested the motor's speed, voltage and current when varying the control voltage from 1-10V in both clockwise and counterclockwise rotation. In part 2, they added an electrical load and repeated the tests under load. The results are recorded in tables. The discussion analyzes the linear relationships between control voltage, speed and armature voltage in each quadrant of operation.

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    ecen441-504post-lab4

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    This lab report summarizes experiments with a 4-quadrant DC motor drive. In part 1, students built the DC motor circuit and tested the motor's speed, voltage and current when varying the control voltage from 1-10V in both clockwise and counterclockwise rotation. In part 2, they added an electrical load and repeated the tests under load. The results are recorded in tables. The discussion analyzes the linear relationships between control voltage, speed and armature voltage in each quadrant of operation.

    Copyright:

    © All Rights Reserved
    Download as DOCX, PDF, TXT or read online from Scribd
    Download as docx, pdf, or txt
    473 views8 pages

    Ecen441 504post Lab4

    Uploaded by

    api-241454978
    This lab report summarizes experiments with a 4-quadrant DC motor drive. In part 1, students built the DC motor circuit and tested the motor's speed, voltage and current when varying the control voltage from 1-10V in both clockwise and counterclockwise rotation. In part 2, they added an electrical load and repeated the tests under load. The results are recorded in tables. The discussion analyzes the linear relationships between control voltage, speed and armature voltage in each quadrant of operation.

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    ECEN 441-504: Electronic Motor

    Drive
    Lab 4: Four - Quadrant Operation of a DC
    Motor Drive

    Submitted by:
    Kevin Bradshaw - UIN: 122003416
    Kenneth McDole - UIN: 92100448
    Jonathan Moore - UIN: 413003391
    Fernando Romo - UIN: 623001710
    TA:
    Performed: October 29th, 2015

    Due: November 5th, 2015


    Procedure
    Part 1: Operation of the 4-Quadrant DC Speed Controller
    The first part of this lab consisted of building the DC motor depicted in Figure
    1. This wiring diagram is a separately excited configuration along with a DC
    speed controller. This controller has the ability to control the speed, direction,
    and armature position of the motor connected. When enough terminal
    voltage is applied, the rotation of the motor (as seen by the drive end)
    begins to rotate clockwise. After exciting the motor, the control voltage was
    varied between 1 and 10 volts. The speed, armature voltage, and armature
    current were measured for each step and are recorded in Table 1. Afterwards,
    the DC motor was turned off, and the position on the speed controller was
    switched to reverse the spin to counterclockwise. The motor was turned back
    on and the same parameters were measured and are recorded in Table 2.
    Figure 1: Wiring Diagram for a 4-Quadrant DC Drive

    Part 2: Forward and Reverse Motoring of the DC Motor Drive Under Load
    The second part of this lab consisted of connecting the DC motor with a
    separately excited configuration to an electrical load. The DC controller was
    set to forward so that the spin would be clockwise. All the resistors were
    flipped to full load and then the control voltage was varied between 1 and 10

    volts. The speed, armature voltage, and armature current were measured
    and are recorded in Table 3. Lastly, the DC motor was turned off in order to
    switch the position on the DC speed controller to reverse the spin to
    counterclockwise. The motor was turned back on and the same parameters
    were measured and are recorded in Table 4.
    Discussion
    1. Quadrant 1 Characteristics

    Both the armature voltage and speed share a positive linear


    relationship with the control voltage.

    2. Quadrant 2 Characteristics

    The speed shares a negative linear relationship with the control


    voltage while the armature shares a positive linear relationship with
    the control voltage.

    3. Quadrant 3 Characteristics

    Both the armature voltage and speed share a positive linear


    relationship with the control voltage.

    4. Quadrant 4 Characteristics

    The speed shares a negative linear relationship with the control voltage while
    the armature shares a positive linear relationship with the control voltage.

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