
Explore a PSIM-based experiment of a step-down chopper with a resistive load, configuring a stripped-down jumper, setting duty cycle, and analyzing input and output voltages.
Explore how chopper output voltage is controlled using variable frequency and duty-cycle strategies, contrasting constant-frequency pulse-width modulation with frequency modulation schemes.
Classify ac to dc converters, focusing on rectifiers, their types, and practical considerations in power electronics using PSIM.
Explore the classification of AC to DC converters and rectifiers in power electronics, with practical PSIM insights and part 3 coverage.
Explore PSIM simulation of a half-wave controlled rectifier with an R load by building the circuit, setting a firing angle, and measuring input and output voltages to obtain average output.
Explore single-phase half-wave controlled rectification with an RL load, featuring firing angle alpha, gate triggering, and the transition between conduction and open-circuit intervals.
Explore single-phase, fully controlled bridge rectifiers with an R-load, covering circuit operation, forward voltage conditions, and gate triggering at firing angle alpha.
Analyze a single-phase fully controlled bridge rectifier with an RL load, focusing on D1–D4 conduction, firing angle alpha, and inductance effects on output during positive and negative cycles.
Analyze a single-phase fully controlled bridge rectifier with an RL load, evaluating output voltage and current for firing angles below, at, and above 90 degrees.
Learn how single-phase semi-converters use a two-thyristor, two-diode bridge to rectify ac to dc. Study symmetrical and asymmetrical half-controlled configurations with inductive loads and firing angle alpha.
Explore single phase semi-converters as a fully controlled ac-to-dc converter using semiconductors, analyzing conduction and output behavior for an inductive load across positive and negative cycles.
Explain symmetrical semi-converters with an RL load and PSIM simulation, derive the average output voltage formula as a function of firing angle alpha, and analyze the rectified waveforms.
Explore a single-phase fully controlled rectifier with an RL load using PSIM, deriving output voltage and current, and analyzing firing angles, rectification and inverter operation.
Explore a single-phase full-wave fully controlled rectifier with an inductive load using PSIM, adjusting firing angle to 90 degrees to study input–output behavior and average output voltage.
Explore single-phase half-wave ac voltage controllers with resistive loads, using silicon controlled rectifiers and diodes to vary output voltage by firing angle in positive and negative half cycles.
Learn how full-wave ac voltage controllers regulate inductive loads using SCR-based converters, firing-angle control, and transformer components to adjust output voltage and current.
Course Objectives:
To enable learners to gain knowledge and understanding in the following aspects:
1. Fundamentals of Power Electronic Devices and Characteristics.
2. To understand and acquire knowledge about various Converter Circuits.
3. To analyze and design different Power Converter Circuits.
4. Analysis of waveforms of choppers, rectifiers, AC Voltage Controllers, and different types of inverters using PSIM software.
Course Outcomes:
The Learners will be able to:
1. Acquire knowledge about Fundamental Concepts and techniques used in Power electronics.
2. Ability to analyze various Single Phase and Three Phase Power Converter Circuits and
understand their applications.
3. Foster the ability to identify basic requirements for Power Electronics based design application.
4. To develop skills to build, and troubleshoot Power Electronics Circuits.
5. Foster ability to understand the use of Power Converters in Commercial and Industrial
Applications
What you will learn from the Course?
1. Basics of Power Semiconductor Devices like SCRs, Power BJTs, IGBTs, and MOSFETs.
2. The analysis of Power Circuits is presented with the Waveforms and Control Techniques.
3. The course discusses Power Processing Electronic Circuits like Rectifiers, AC Voltage Controllers, DC-DC converters, and Inverters.
4. Applications of Power Electronic Technology in the Generation sector, Transmission sector and also in day-to-day applications like Battery Charger, Motor Drives, Power Supplies are described.
MODULE-1: Power Semiconductor Devices
1. Silicon Controlled Rectifier (SCR)
1.1 Construction
1.2 Operation
1.3 Static & Dynamic characteristics
1.4 Two transistor model
1.5 Applications & Ratings
MODULE-2: Firing Circuits, Protection Circuits of SCR & Commutation circuits
1. Firing Circuits
i) Resistance Firing circuits
ii) RC Full wave Firing circuits
iii) UJT Ramp Firing circuits
iv) Ramp & Pedestal Firing circuits
2. Protection Circuits of SCR & Snubber circuit protection
MODULE-3: DC to DC Converters (Choppers)
3.1 Step- down chopper
3.2 Step- up chopper
3.3 Strategies for controlling the output voltage of Chopper
MODULE-4: AC to DC Converters (Rectifiers)
4.1 Single phase Fully Controlled AC-DC Converters with R-load
4.2 Single phase Fully Controlled AC-DC Converters with RL-load
4.3 Single phase Half Controlled AC-DC Converters (Semi-converters) with R-load
4.4 Single phase Half Controlled AC-DC Converters (Semi-converters) with RL-load
4.5 Three phase Fully Controlled AC-DC Converters with R-load
MODULE-5: AC to AC Converters (AC Voltage Controllers)
5.1 Single phase half wave AC voltage controller with R-load
5.2 Single phase full wave AC voltage controller with R-load
5.3 Single phase full wave AC voltage controller with RL-load
5.4 Two-Stage sequence control
MODULE-6: DC to AC Converters (Inverters)
6.1 Single phase Half bridge DC-AC Converters with R-load
6.2 Single phase Full bridge DC-AC Converters with R-load
6.3 Single phase Full bridge DC-AC Converters with RL-load