General information


Subject type: Mandatory

Coordinator: Julián Horrillo Tello

Trimester: Third term

Credits: 6

Teaching staff: 

Salvador Alepuz Menendez

Skills


Specific skills
  • CE22: Understand the applications of power electronics.

  • CE24: Train to design analog, digital and power electronic systems.

Description


The subject of Power Electronics aims to train students in the Degree in Engineering in Industrial and Automatic Electronics so that they are able to understand, interpret and perform calculations in the most basic circuits of Power Electronics, in its four conversions (CC / CC, CA / CC, CC / CA, CA / CA), in addition to distinguishing between the different electronic devices within this discipline. Only the permanent regime will be considered, the transitional regime will not be the object of study. The most common applications will also be presented.

Exceptionality in front of the Covid-19:

This subject has methodological and digital resources to make possible its continuity in non-contact mode in the case of being necessary for reasons related to the Covid-19. In this way, the achievement of the same knowledge and skills that are specified in this teaching plan will be ensured.

The Tecnocampus will make available to teachers and students the digital tools needed to carry out the course, as well as guides and recommendations that facilitate adaptation to the non-contact mode.

Learning outcomes


  1. Identifies and describes the types of power conversion and the circuits that perform them.
  2. Identifies and evaluates power semiconductors based on their characteristics.
  3. Calculate the electrical quantities of power electronics circuits.
  4. Dimension motor and converter in a drive by means of an induction motor.
  5. Identifies the elements that make up a frequency converter and evaluates its performance.

Working methodology


The course consists of 4 hours a week of face-to-face classes in the classroom and 2 hours a week of laboratory practices. Classroom work will be based on classes where the teacher will explain the theoretical concepts, problem solving and, occasionally, the collaborative resolution of exercises by students. He will also introduce the practices, which will be developed in small groups in the laboratory.

The internship sessions will be compulsory and will be carried out in groups of 15-20 students, divided into work teams of 2-3 students who will perform the work indicated in the corresponding internship script, in the laboratory of Electrical Machines and / or o Control.

Students will have the necessary documentation to follow the course.

The realization of a work of thematic affine to the asignatura is programmed outside the classroom.

Students will also have to devote additional time, non-contact, to the resolution of exercises, preparation of reports of laboratory practices and preparation of written tests.

Exceptionality in front of the Covid-19:

The face-to-face sessions in the classroom become sessions taught by videoconference synchronously within the class schedule provided in the subject. Eventually, if the connectivity to the network is insufficient, or for other reasons, the corresponding content will be taught with previously recorded videos, or any other appropriate support.

The work of practices (planned to realize in the classes of practices) will realize in face-to-face sessions in the maximum degree that allow the measures of health. When not all the practice sessions can be carried out in person, these will be replaced by the calculation and simulation of circuits to be carried out at home asynchronously, following the script provided by the teachers.

The rest of the teaching methodology remains unchanged.

Contents


 

Content title 1: INTRODUCTION TO POWER ELECTRONICS.

Description

Power Electronics within Industrial Electronics

Power Electronics vs. Signal Electronics

Ideal switch

Utility and applications

 

Content title 2: DEVICES.

Description

Diode. Thyristor. TRIAC. GTO. BJT. MOSFET. IGBT.

Technological aspects and principle of operation of the components

Passive components L and C. Transient operation.

Component selection criteria

Heat dissipation

Calculation formulas for Power Electronics.

Harmonics.

 

Content title 3: CC / CC CONVERSION.

Description

DC and DC converters without and with insulation for switched power supplies. Permanent operation. Transfer function.

DC / DC converters for DC motor control (choppers). Types of converters. Operation in 1, 2 and 4 quadrants. Permanent transfer function.

Symmetrical DC / DC converters for switched power supplies. Topologies and operation in permanent regime.

 

Content title 4: AC / DC CONVERSION.

Description

Electrical system. Three-phase and single-phase network.

Types of rectifiers. Half wave and full wave. Single-phase and three-phase. Uncontrolled, semi-controlled and fully controlled.

Operation with different types of load.

 

Content title 5: CC / CA CONVERSION.

Description

Types of investors. Self-employed and non-self-employed. Single-phase and three-phase.

Switching strategies. Square, voltage cancellation, PWM.

Harmonic analysis.

 

Content title 6: AC / CA CONVERSION.

Description

Direct AC / AC converters. Cyclo-converter, phase control, sequence control, matrix converter.

Indirect AC / AC converters. Intermediate current and voltage circuit.

Frequency converters. Applications with induction motors controlled with frequency converters.

 

Learning activities


With the aim of gathering evidence of the achievement of the learning outcomes essential to pass the subject, the following evaluative activities will be carried out:

Assessment activity 1: Partial written test (Ex1).

Description

Written test (exam) to evaluate the contents developed in topics 1 to 3.

Support material

Notes and collection of problems.

Bibliography.

Deliverable and links to the evaluation

Test resolution.

Represents 35% of the total grade of the subject.

Links to learning outcomes

Evidence of the achievement of learning outcomes 1-, 2- and 3-.

 

Assessment activity 2: Partial written test (Ex2).

Description

Written test (exam) to evaluate the contents developed in topics 4 to 6.

Support material

Notes and collection of problems.

Bibliography.

Deliverable and links to the evaluation

Test resolution.

Represents 35% of the total grade of the subject.

Links to learning outcomes

Evidence of the achievement of learning outcomes 1-, 3-, 4- and 5-.

 

Assessment activity 3: Laboratory Practices (P).

Description

Observations, measurements and calculations of various experiments performed in the laboratory of Electrical and / or Control Machines. Eventually, circuit simulations.

Support material

Practice scripts.

Laboratory material and instrumentation (hardware and software).

Virtual Campus.

Deliverable and links to the evaluation

Eventually, prior report of each practical session.

Subsequent report of each practical session.

This activity represents 20% of the final grade of the subject.

Links to learning outcomes

Evidence of the achievement of learning outcomes 1-, 2-, and 3-.

 

Assessment activity 4: Work (T)

Description

This activity, which consists of carrying out a work, is carried out individually or eventually in groups.

In this activity, some of the circuits that are the object of study in the subject will be simulated with a computer, a topic proposed by the teacher.

It will be necessary to prepare a report and make a presentation of the work.

Support material

Statement of the activity.

Notes of the subject.

Bibliography.

PSIM simulation program.

PSIM software manual.

Deliverable and links to the evaluation

Report, simulation files and presentation of the work.

This activity represents 10% of the final grade of the subject

Specific objectives

Since the topic of each work will be customized for each student or group, there will be evidence of the achievement of learning outcomes 1- and 3-, and eventually 2-, 4- or 5.

Evidence that the student can convey information, ideas, problems and solutions to both specialized and non-specialized audiences (CB. 4).

 

Rules for carrying out the activities

All the information on the activities to be carried out will be published on the campus.

For each activity, information will be provided on the regulations to be followed and the particular conditions that govern them, sufficiently in advance.

In the written tests the teacher will provide a form. The student will only need writing utensils and a calculator.

Each of the laboratory practices will need a report (made by the group), which will be delivered to the teacher, in general, at the end of the practice session. The report will be evaluated and within approximately one week. Eventually, a preliminary report must be submitted at the beginning of the internship.

The work will be announced and organized at the beginning of the course, with the forecast of delivery at the end of the course.

Deliveries will not be accepted outside the established deadlines or through unforeseen means, except in cases of force majeure.

Exceptionality in front of the Covid-19:

Learning activities remain unaltered.

Evaluation system


The final grade (QF) of the subject is calculated as follows:

QF = Ex1 0,35 + Ex2 0,35 + P 0,2 + T 0,1

Minimum grades:

Ex1 and Ex2: 3,0

P: 5,0

T: 4,0

In the event that any of the grades for the Ex1 and Ex2 activities is below the corresponding minimum grade, the final grade for the subject will be limited to 4,0.

In the event that any of the grades for the P and T activities is below the corresponding minimum grade, the final grade for the subject will be limited to 5,0.

There will be an extraordinary recovery session of Ex1 and Ex2 activities (separately) for those students who have not passed the subject in the ordinary assessment. The qualification of this recovery will replace the one of the activities Ex1 and Ex2 inside the evaluation of the asignatura, whenever it is upper. P and T activities are not recoverable. In case of the recovery session, the final grade will be limited to 6,9.

Exceptionality in front of the Covid-19:

The final grade (QF) of the subject is calculated as follows:

QF = Ex1 0,3 + Ex2 0,3 + P 0,25 + T 0,15

Minimum grades:

Ex1 and Ex2: 2,0

P: 5,0

T: 4,0

The rest of the evaluation system remains unaltered.

REFERENCES


Basic

S. Alepuz and R. Safont. Power Electronics Notes. ESUPT Tecnocampus.

S. Alepuz. Power Electronics Practices. ESUPT Tecnocampus.

S. Alepuz. Collection of Power Electronics problems. ESUPT Tecnocampus.

Power electronics: converters, applications and design, N. Mohan, W. Robbins, T. Undeland, Ed. Wiley, 3rd ed., 2002. ISBN: 9780471226932. United Kingdom

Power electronics: circuits, devices and applications, M. Rashid, Ed. Pearson, 3rd ed., 2004. ISBN: 9789702605324. Mexico.

Complementary

Power electronics problems. A. Barrado, A. Lázaro, Ed. Pearson, 1st ed., 2007. ISBN: 9788420546520. Spain.

Power electronics: components, types and equipment. S. Martínez, JA Gualda, Ed. Auditorium, 1st ed. 2006. ISBN: 9788497323970. Spain.