English

Français

English

Français

Appearance

System Power Interface (07_X-IPS) ​

  • Coefficient : 6
  • Hourly Volume: 125.0h (including 72.0h supervised)
    CM : 22.5h supervised
    TD : 6h supervised
    Labo : 43.5h supervised (and 12h unsupervised)
    Out-of-schedule personal work : 41h
  • Including project : 31.5h supervised and 32h unsupervised project

AATs Lists

Description ​

  • Objectives: This module deals with the interface between a digital system (microprocessor, computer, etc.) and an electromechanical system (servo system, robot, electric vehicle, wind turbine, etc.). It focuses on both actuation (motors) and information feedback (sensors). The objectives of this module are threefold:

    • Study different motor technologies used in mechatronics and their control principles.
    • Address power supply issues in embedded systems
    • Acquire synthetic knowledge of instrumentation to be able to design and size an acquisition chain, from sensor to processing unit.

  • Teaching method: This module consists of:

    • An instrumentation course presenting the instrumentation chain from sensor to analog-digital converter (sensor technology, conditioning, amplification, filtering, conversion).
    • A course on actuators (polyphase motors).
    • A course on electronic power supplies (linear or switching power supplies),
    • An instrumentation project during which students must completely create an electronic board, embedded code, and HMI to visualize experimentally acquired data and compare them with theoretical models seen in previous semesters (whether models seen in dynamics, thermics, or materials). In this project, students are grouped randomly in teams of 5 on 5 different subjects.
    • A mini-project (in pairs) on vector control of synchronous machines.

Learning Outcomes (AAv) ​

  • AAv1 [hours: 5, C1]: Functional diagram and project task breakdown. By the end of this course, seventh-semester students will be able, in groups of 4-5 students, to produce a functional diagram and provisional breakdown of necessary work into elementary tasks, for implementing an instrumentation project based on a microcontroller. The task breakdown must:

    • Not forget any critical tasks for project completion
    • Show sequentially linked tasks
    • Show planned delivery dates

  • AAv2 [hours: 16, B1, C2, C3, D1, D3, D4, G2]: Electronic CAD. By the end of this course, seventh-semester students will be able, in groups of 4-5 students, to design, assemble, test, and validate a functional double-sided electronic board (without plated through-holes). To be validated, the electronic board must:

    • Perform expected electronic functions
    • Be demonstrable (i.e., chosen component footprints correspond to components available in Lab room or Forge)
    • Not be larger than necessary (to limit unnecessary expenses and environmental costs)
    • Present good ergonomics for external connection cables

  • AAv3 [hours: 26, B1, C2, C3, D1, D3, D4]: Autonomous implementation of a microcontroller for an instrumentation application. By the end of this course, seventh-semester students will be able, in groups of 4-5 students, to implement a digital system to instrument a physical system (e.g., motor, heating, pendulum, shape memory alloy actuator...). To implement this instrumentation chain, students must be able to:

    • Master the microcontroller development IDEs provided by the manufacturer (without teachers providing a pre-prepared project)
    • Choose sensors to acquire physical quantities necessary for their application
    • Create interface electronics between chosen sensors and microcontroller
    • Choose connections with the microcontroller based on nature of signals to acquire
    • Create embedded code in the microcontroller
    • Create a PC-based HMI to collect, visualize, and analyze acquired data

  • AAv4 [hours: 26, B2, B3]: General knowledge in instrumentation. By the end of this course, seventh-semester students will have general knowledge in instrumentation. More specifically, students should be able to explain:

    • Sources of interference in electronic circuits and ways to reduce them
    • Different sensor conditioners
    • Purpose of instrumentation and/or isolation amplifiers
    • Different solutions for powering an electronic circuit and impact on instrumentation chain
    • Different sensor technology types for main quantities related to an electromechanical system

  • AAv5 [hours: 12, B2, B3, B4, D3]: Comparison of experimental results with theoretical calculations or simulations. By the end of this course, seventh-semester students will be able, in groups of 4-5 students, to link experimental data they have produced with theoretical results obtained by calculation and/or numerical simulation. More specifically, students will be able to:

    • Choose calculation and/or simulation tools necessary for theoretical analysis of their system
    • Have a critical view of obtained numerical results (i.e., be able to question model limits based on simplifying assumptions made)
    • Explain differences that might exist between measured values and those predicted by calculation

  • AAv6 [hours: 5, E3, E4]: Working in a non-chosen group. By the end of this course, seventh-semester students will be able to demonstrate their ability to work in a group assigned to them by random draw. More specifically, students must show their ability to:

    • Break down work into elementary tasks and distribute these tasks within the group
    • Pool their individual work to contribute to group work progress
    • Identify difficulties and/or delays of a group member
    • Adapt and redefine project objectives to produce best results by deadline

  • AAv7 [hours: 5, F1, F2]: Written synthesis (in chosen format, but limited size). By the end of this course, seventh-semester students will be able, in groups of 4-5 students, to produce a synthesis document presenting the measurement system they designed, built, and tested. Document type is free: scientific article, poster, website, video mixing film and text plates. The only constraint is that the document must be synthetic and present only significant points of their achievement. The document must:

    • Follow conventional writing conventions (introduction, problem positioning, implementation, critical study of results, conclusion...)
    • Present specific results unique to the completed project The document should not be a document summarizing the group's work method and difficulties encountered, but rather a document presenting obtained results and critical analysis of measurements made in relation to theoretical knowledge seen in previous semesters

  • AAv8 [hours: 5, F1, F2]: Group oral synthesis. By the end of this course, seventh-semester students will be able to synthesize orally in limited time (10min) the measurement system they designed, built, and tested. The presentation must:

    • Follow conventional presentation conventions (introduction, problem positioning, implementation, critical study of results, conclusion...)
    • Use readable slides on a classroom projector
    • Present a demonstration of the created device (either live demonstration or pre-recorded video)
    • Time constraint must be respected
    • All group members must speak
    • Present comparison between obtained experimental data and expected theoretical data

  • AAv9 [hours: 13, B3, B4, D2, D3, D4]: Modeling for vector control of a synchronous motor. By the end of this course, seventh-semester students will be able, in pairs, to establish a model to implement vector control of a synchronous motor, with current and speed control loops. The development context will lead to mastery of rapid prototyping tools to switch from a simulated model to functional code for the target.

  • AAv10 [hours: 12, C1, C3, D1, D2, D3, D4]: Speed variation. By the end of this course, seventh-semester students will be able, in pairs, to design a program to control a speed drive via a fieldbus to respect different operating modes.

Assessment Methods ​

  • 3 quiz grades on course and TD part
  • 1 Lab grade on synchronous machine vector control part
  • 1 grade on instrumentation project: grade based on various intermediate submissions (functional diagram, project task breakdown, electronic CAD), final synthesis document (poster, scientific article, video, or website of choice) and presentation

Keywords ​

vector control, brushless, stepper, acquisition and digitization chain, instrumentation, sensors

Prerequisites ​

Analog electronics, digital electronics, microprocessors, DC motor, basic concepts in dynamics physics, thermics, and strength of materials

Resources ​

  • Hervé Buyse, Francis Labrique and Paul Sente. Introduction to Electronics and its Applications in Instrumentation. Technical & Documentation Editions, 2001.
  • J. G. Kassakian, M. F. Schlecht, G. C. Verghese, Principles of Power Electronics, Addisson Wesley, 1991.
  • Pierre Mayé, Electronic Power Supplies, Dunod: 2012.
  • Michel Lavabre Fabrice Baudoin, Sensors: Principles and Uses: DUT, BTS, Engineering Schools: Course and Solved Exercises, Casteilla: 2008.
  • Georges Asch and collaborators, Data Acquisition: From Sensor to Computer, Dunod: 2011.