Course Syllabus
Introduction to Power Electronics / Power Semiconductor Devices
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.
Uncontrolled Rectifier
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.
Controlled Rectifiers and Inverters
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.
AC Voltage Controllers
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.
DC Choppers
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.
Switched-Mode Inverter
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
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.
Uncontrolled Rectifier
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.
Controlled Rectifiers and Inverters
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.
AC Voltage Controllers
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.
DC Choppers
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.
Switched-Mode Inverter
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
Frequently Asked Questions
Q1 : What is a MOOC?
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.
Q2 : How do I enroll MOOC Power Electronics?
A2 : You can enroll the MOOC through https://ufuture.uitm.edu.my/home/course_detail.php?course=EPO510
Q3 : What are the requirements to enroll the MOOC?
A3 : There is no pre-requisite course to enrol on the MOOC, but basic knowledge of Electrical Engineering is preferred.
Q4 : How much time I need to spend to complete the MOOC?
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.
Q5 : Who can I ask if I faced challenges in learning the MOOC?
A5 : Learners can post comments during the learning process, and the facilitators will provide comments, advice and consultation.
Q6 : How can I collaborate with other learners?
A6 : Through the Course Forum created on the UFUTURE platform, learners can share ideas, engage in discussions, and collaborate.
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.
Q2 : How do I enroll MOOC Power Electronics?
A2 : You can enroll the MOOC through https://ufuture.uitm.edu.my/home/course_detail.php?course=EPO510
Q3 : What are the requirements to enroll the MOOC?
A3 : There is no pre-requisite course to enrol on the MOOC, but basic knowledge of Electrical Engineering is preferred.
Q4 : How much time I need to spend to complete the MOOC?
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.
Q5 : Who can I ask if I faced challenges in learning the MOOC?
A5 : Learners can post comments during the learning process, and the facilitators will provide comments, advice and consultation.
Q6 : How can I collaborate with other learners?
A6 : Through the Course Forum created on the UFUTURE platform, learners can share ideas, engage in discussions, and collaborate.