POWER ELECTRONICS

About this Course

  • 528 students enrolled
  • 4 instructors

Course Description

The MOOC Power Electronics was developed for a better understanding of power engineering studies and provides a platform to facilitate more advanced studies in power electronics. The course begins with an introduction to power semiconductor devices, their characteristics, both static and switching, and their drive circuit design. This course deals with the techniques of designing power conversion circuits using power semiconductor devices in the switching mode rather than the linear mode. Topologies of power electronic circuits for applications in AC-DC rectification, DC-AC inversion, DC-DC conversion, and AC-AC conversion and their control techniques are covered. Applications of power electronic equipment are also included, with an emphasis on DC and AC motor drives. To develop the learner's skills in power electronics, a variety of learning materials including notes with problems and solutions, teaching videos, learning activities, and assessments are provided.

Course Learning Outcomes

1 ) Design power electronic converters to meet certain specifications and requirements.
2 ) Analyse power switching devices’ characteristics and power electronic converters’ operating principle.
3 ) Examine various quantities of power electronics converters using circuit analysis.

Course Details

STATUS : Open
DURATION : FLEXIBLE
EFFORT : 2 hours per week
MODE : 100% Online
COURSE LEVEL : Beginner
LANGUAGE : English
CLUSTER : Science & Technology ( ST )

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 Syllabus

1.1) Devices; Power Diodes, BJTs, Power MOSFETs, Thyristors, GTOs, IGBTs. Types, Basic structure. Equivalent model. Steady-state characteristics and switching characteristics. Operating limitation and Safe Operating Area. Series and Parallel Device Operation. Device Protection. Gate and Base drive requirements and circuits.
1.2) Other devices; Pulse Transformer, Opto Coupler, Power JFET, Field-Controlled Thyrsistor, Mos-Controlled Thyristor and Power Integrated Circuits. Operation and function.

2.1) Single Phase Rectifiers; Principle operation. Current commutation. Effect of line inductance on current commutation. Distortion in line current and line voltage. Total Harmonic Distortion. Effect on neutral currents in three-phase system.
2.2) Three-phase Rectifier; Principle operation. Effect on the ac-side inductance on current commutation. Distortion. Time domain analysis on the voltages and current waveforms. Ripple and ripple factor.

3.1) Single phase controlled rectifier; Circuit with R, L, freewheeling diode and back e.m.f voltage. Analysis on time domain.
3.2) Three-phase controlled rectifier: Rectifier mode; Half-controlled and fully-controlled. Principle operation. Analysis on the voltages and current waveforms. Effect on the input line current. Harmonics. Effect of load and source inductances. Power, Power Factor and Reactive Volt-Amperes. Continuous and discontinuous load current. Smoothing method for the output. Inverter mode operation; Principle operation,
Start-up, Line notching and distortion.
3.3) High Voltage Direct Current Scheme; 12-pulse bridge converter. Rectifier and inverter mode operation. Control of HVDC. Harmonic filter and power factor correction capacitors.

4.1) Anti-parallel connection of thyristors. Triac. Performance of the circuits with load; Resistive and Inductive.
4.2) Single-phase transformer tap changer, Phase control, Integral cycle control and cycloconverter; Operation, analysis and comparison of merits.
4.3) Harmonics, load efficiency and power factor.

5.1) Non isolated version and isolated version of Choppers; Step-down and Step-up choppers. Operation and analysis. SMPS.
5.2) Thyristor forced commutation DC choppers; Types of thyristor commutations. Commutation circuit design. Comparisons of merits between the commutation techniques.

6.1) Single-phase inverter; PWM switching scheme. Square-wave switching scheme. Principle operation. Switch utilisation ratio.
6.2) Three-phase Inverter; PWM in voltage source

Our Instructor

PROFESOR MADYA IR DR RAHIMI BIN BAHAROM

 Course Instructor
UiTM Shah Alam

IR. DR. NOR FARAHAIDA BINTI ABDUL RAHMAN

 Course Instructor
UiTM Shah Alam

PROFESOR MADYA TS. DR. MOHAMMAD NAWAWI BIN SEROJI

 Course Instructor
UiTM Shah Alam

TS. DR. NORAZLAN BIN HASHIM

 Course Instructor
UiTM Shah Alam

 Frequently Asked Questions

A1 : A massive open online course (MOOC) is an online course aimed at large-scale interactive participation and open access via the web. In addition to traditional course materials such as videos, readings, and problem sets, MOOCs provide interactive user forums that help build a community for the students, professors, and teaching assistants (TAs). MOOCs are a recent development in distance education.

A2 : You can enroll the MOOC through https://ufuture.uitm.edu.my/home/course_detail.php?course=EPO510

A3 : There is no pre-requisite course to enrol on the MOOC, but basic knowledge of Electrical Engineering is preferred.

A4 : The MOOC is designed for 3 credit hours for a duration of 14 weeks. Therefore the expected time to complete the MOOC is 56 hours and the learning time is flexible.

A5 : Learners can post comments during the learning process, and the facilitators will provide comments, advice and consultation.

A6 : Through the Course Forum created on the UFUTURE platform, learners can share ideas, engage in discussions, and collaborate.