Labs for Quanser QNET DC Motor Add-On Board

Quanser QNET DC Motor 2.0 Add-on Board connected to NI ELVIS
The Quanser QNET DC Motor Board is a versatile servo system designed to teach and demonstrate the fundamentals of motor servo control in a variety of ways. Designed exclusively for NI ELVIS platform and LabVIEW™ software, the system can easily be configured to control motor position and speed. The ABET-aligned labs each include an overview of control theory, in lab exercises, and assessments.
by Quanser Inc.

LEARNING OBJECTIVES

  • Model a DC motor experimentally
  • Design and implement a proportional-integral (PI) controller to control the speed of a motor
  • Design and implement a proportional-derivative (PD) controller to control the position of a motor
  • Design and implement a proportional-integral-derivative (PID) controller for tracking error and disturbance rejection
 

COURSE ALIGNMENT

 
Level University
Topic Mechatronics
Style Laboratory
Prerequisite Skills Basic Physics, Basic LabVIEW familiarity

INCLUDED COURSE MODULES

This lab introduces students to using transfer functions to create models for how a DC motor behaves. In addition, they run open-loop feedback control with a virtual instrument to validate the DC motor model. This lab gives basic insight into parameters that define the motor so the student can later accurately control speed and position.
Students learn how to use a PD (proportional-derivative) compensator to control motor position. This lab introduces the fundamentals of deriving a closed-loop transfer function to define the motor position system. Students learn how the proportional and derivative gains effect the control system by modifying the respective gain values.
Students learn to design a PD (proportional-derivative) compensator based on specifications to control position. In the lab students first study the derivation of the transfer function, peak time, and overshoot. Then, they complete an in-lab activity to track a reference position square wave using PID control, and observe the effects of disturbances when using using PD and PID control.
Students learn how to use a PI (proportional-integral) compensator to control motor speed. This lab introduces the fundamentals of deriving a closed-loop transfer function to define the motor speed system. Students learn how the proportional and integral gains effect the control system by modifying the respective gain values.
Students learn to design a PI (proportional-integral) compensator based on specifications to control speed. In the lab, students first study the derivation of the transfer function, peak time, and overshoot. Then they complete an in-lab activity to track a reference speed square wave with various PI gains and investigate the effects of set-point weights.
Students track triangular signals and use PID (proportional-integral-derivative) control to reject disturbance. Students learn how integral control is used to combat disturbance in tracking a signal. The position of the motor is controlled under different PID gains to maximize tracking performance.

LabVIEW

An integrated development environment designed specifically for engineers and scientists.

NI ELVIS

The NI Educational Laboratory Virtual Instrumentation Suite (NI ELVIS) is a versatile laboratory platform that enables educators to teach over 20 different courses across science and engineering departments. The NI ELVIS integrates 12 common lab instruments including an oscilloscope, function...

Quanser QNET DC Motor Add-On Board

This NI ELVIS add-on board is designed to illustrate the fundamentals of motor control through a series of exercises involving modeling and controlling a DC motor.

Required Software

Download Academic Software, Learn About Software Licensing
  • LabVIEW 2012 or later (Requires license)
  • NI DAQmx 9.5.5 or later
  • NI ELVISmx 4.4 or later
  • LabVIEW Control Design and Simulation Toolkit 2012 or later (Requires license)

Required Hardware

Purchase Engineering Education Products
  • NI ELVIS II / II+ – View Specifications
  • Quanser QNET DC Motor 2.0 Add-on Board – User manual is included in the main download above

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