Quanser QNET DC Motor 2.0 Add-on Board connected to NI ELVIS

Labs for Quanser QNET DC Motor Add-On Board

by Quanser Inc.

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.

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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 Labs

MODELING DC MOTOR CONTROL

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.

QUALITATIVE PD CONTROL

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.

DESIGNING A PD CONTROLLER TO SPECIFICATIONS

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.

QUALITATIVE PI 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.

DESIGNING A PI CONTROLLER TO SPECIFICATIONS

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.

TRACKING AND DISTURBANCE REJECTION

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.

Requirements

LabVIEW

LabVIEW is systems engineering software for applications that require test, measurement, and control with rapid access to hardware and data insights. Learn more

NI ELVIS II/II+

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... Learn more

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. Learn more

DETAILED REQUIREMENTS

Required Software

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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

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