Power Engineering

The course 17ABBSEL can be graded only after the course 17ABBEO has been successfully completed.

The course 17ABBSEL can be graded only after the course 17ABBEM has been successfully completed.

Garant předmětu:

Lecturer:

Tutor:

Supervisor:

Department of Biomedical Technology

Synopsis:

Basic power electronics, power supplies units including electrochemical supplies, rectifiers, stabilizers, common types of motors, basic distributions of electricity, types of electric systems and connecting of electric appliances with sight on medical purposes. The knowledge will be checked in the laboratory by mean of practical examples during the work in the laboratory.

Requirements:

Assessment (credit) requirements:

P1. Mandatory attendance at exercises (apology only for serious and documented reasons).

P2. One completed report from the topic safety and functional inspection of the selected medical device (mandatory part of the credit, no points)

P3. Two tests during the semester (see timeschedule), duration from 30 to 100 minutes, after each test there is necessary to obtain at least 50 points (max. one test, 100 points).

Exam conditions and requirements:

P1. Without obtaining credit and written credit within the IS KOS there is no possibility to take exam, i.e. test.

P2. There is required to use student identification card before exam test.

P3. Students must have turned off mobile phone and stored off it.

P4. There is possible to use calculator during the test. However, they are required only approximate calculations.

P5. As a basic requirement for students there are assumed knowledge as necessary mathematical, physical apparatus of the previous year of undergraduate study and basic skills in electrical engineering and electrical measurements.

P6. The test is composed as a written test from MCQ-type questions (always one answer is right) - 1 point max., opened questions 0-5 points max. (very important issues). Overall test includes 44 questions, i.e. 30 of MCQ (abc) 1 point and 14 questions opened 0-5 max. points. The correct answer according to the type of 0-5 points, marking more responses other than prescribed manner, is 0 points, no answer is 0 points, wrong answer is zero points. Minimum 50 points, max. 100 points. Corrections can be recorded for each MCQ type questions into the marked area. Proper response is characterized by bold framed cross into parts and repairs in addition to poorly framed sections. Everything is also mentioned within the test instruction. Test is evaluated according to the ECTS table. Total time allowed for the test is 120 minutes. The test is corrected common with the student and can be corrected by an oral examination in case of the number of points on the interface (plus / minus 2 points). Students in this case can accept the result based on a test, or to be further tested for better degree. In case of refusal evaluation will be classified as F.

P7. Overall tests assessment and thus the overall evaluation of the course is according to the ECTS grading scale.

Syllabus of lectures:

1.Power electronics - division of transducers, description of the function including basic characteristics, schematic markers, principal schemes

2.Supplies - divisions, block schemes, chemical supplies

3.Transformer - principle, alternate scheme, diagrams, functional state

4.Transformer - uniphase, three-phase and autotransformer, usage

5.Rectifiers and stabilizers - uniphase and three-phase

6.Direct-current motor - features, division, principle, motors with serial, outside and derivative stimulus

7.Commutator motors - uniphase serial motor, three-phase motors

8.Electric traction of small power

9.Electric devices - theory of switching and arc extinction, contact-makers, drawing of the schemes

10.Electric devices - circuit breakers and protectors

11.Generation of electricity, motor generators, back-up power supply

12.Distribution of electricity, distribution systems

13.Dimensioning and protection of line wires

14.Connecting of appliances

Syllabus of tutorials:

1.Introduction, safety instructions for the work in the laboratory, laboratory rule, identification with laboratory, repetition of knowledge from electrical measurement

2.Numerical solution of ideal supplies of voltage and supplies of current, checking of results by measuring in the laboratory - students solve examples during homework, results check by practical measuring in the circuit

3.Measurement of uniphase transformer - alternate scheme from measured data

4.Measurement of three-phase transformer - measurement of loses and circuit angle - students use knowledge of theory.

5.Rectifiers - observation of time courses of circuit values non-controlled and controlled rectifier during different type of load

6.Measurement on outside stimulated direct-current motor in open circuit and during load by dynamometer

7.Measurement on serial uniphase commutator motor, load by eddy brake - mechanical characteristics. Show of three-phase constructions

8.Measurement on step motor

9.Drawing of electric schemes - circuits of contact driving

10.Measurement of characteristics of overcurrent relay, connection, test of function of current protector, guide in the laboratory

11.Measurement on synchronous device - phase-coincidence, start of motor generator - guide in the laboratory

12.Basics of computations of electric lines and network - according to show examples

13.Dimensioning of protection of electric lines - show of programs OEZ Sichr a nkt cables

14.Practical demonstrations of connecting of electric appliances - it is possible use a laboratories and work-rooms SPŠ and VOŠ Kladno

Study Objective:

The aim of the education of subject power engineering on FBMI is to have knowledge from basics of power electronics and connecting of electric appliances with sight on medical purposes. The aim is not to gain detail knowledge with subject extension, but to introduce the students with the basics of power engineering. It is important to understand the physical basis of the problem.

Study materials:

[1] Power electronic systems: theory and design, Upper Saddle River, N.J.: Prentice Hall, c 2001. xii, 562 p. ISBN: 0134428803.

[2] John, G. Kassakian, Principles of Power Electronics. Addison-Wesley Series in Electrical Engineering). 2006

Note:

Further information:

No time-table has been prepared for this course

The course is a part of the following study plans:

• Biomedical Technician - full time study in English (compulsory course)