Power Electronics

Course Information

College	Anan College	Year	2021
Course Title	Power Electronics
Course Code	1315E01	Course Category	Specialized / Compulsory
Class Format	Lecture	Credits	School Credit: 1
Department	Course of Electrical Engineering	Student Grade	5th
Term	First Semester	Classes per Week	2
Textbook and/or Teaching Materials	Power Electronics by Yano and Uchida (Maruzen Publishing)
Instructor	Park Youngsoo

Course Objectives

1. Able to explain the characteristics of thyristors.
2. Able to understand the basic operation of rectifier circuits and calculate the average output voltage.
3. Able to understand the basic operation of the step-down / step-up chopper circuit and calculate the average output voltage.
4. Able to understand the basic operation of the inverter circuit and calculate the effective value of the output voltage.

Rubric

	Ideal achievement level	Standard achievement level	Minimum achievement level
Achievement Goal 1	Able to explain quantitatively the characteristics of thyristors using equations.	Able to qualitatively explain the characteristics of thyristors.	Able to understand the characteristics of thyristors.
Achievement Goal 2	Able to understand the types of rectifier circuits and their operations, and be able to calculate the average output voltage.	Able to understand the types of rectifier circuits and their basic operations, and be able to calculate the average output voltage.	Able to calculate the average output voltage of the rectifier circuit.
Achievement Goal 3	Able to understand the operation of the step-down / step up chopper circuit and calculate the average output voltage.	Able to understand the basic operation of the step-down / step-up chopper circuit and calculate the average output voltage.	Able to calculate the output voltage of the step-down / step up chopper circuit.
Achievement Goal 4	Able to understand the operation of the inverter circuit and calculate the effective value of the output voltage.	Able to understand the basic operation of the inverter circuit and calculate the effective value of the output voltage.	Able to calculate the effective value of the output voltage of the inverter circuit.

Teaching Method

Outline:

Power electronics is a technical field where electric power is converted and controlled using various power semiconductor devices; however, with the remarkable progress in semiconductor technology in recent years, small generators for automobiles and households are now available from almost all industrial fields and are widely applied to the consumer field. In this lecture, you will learn about the types of power conversion circuits, operating principles, and basic characteristics for the purpose of learning the basics.

Style:

Classes will be conducted in a lecture format, and exercises will be conducted as necessary. In order to gain a deeper understanding of the lecture, prepare and review it thoroughly, and after the lecture, work on the given tasks.
[Class time 30 hours]

Notice:

Knowledge of differential equations and Fourier series expansion is indispensable for learning power electronics circuits, so be sure to review them in advance. Be sure to bring a calculator as you may solve exercises during the lecture.

Course Plan

			Theme	Goals
1st Semester
	1st Quarter
		1st	Transient analysis of RC and RL circuits	Able to perform transient analysis using Laplace transform for RC series and RL series circuits.
		2nd	Transient analysis of RLC circuit and calculation of steady current	Able to perform transient analysis of RLC circuits and calculation of steady-state current for AC power supplies.
		3rd	Thyristor operating principle and single phase half-wave rectifier circuit	Able to understand the operating principle of thyristors and calculate the average output voltage of single-phase half wave rectifier circuits.
		4th	Single-phase full wave rectifier circuit	Able to understand the operating principle of a single-phase full-wave rectifier circuit and calculate the average output voltage.
		5th	Three-phase full wave rectifier circuit	Able to calculate the average output voltage of a three-phase full-wave rectifier circuit.
		6th	Smoothing circuit and ripple	Able to understand the smoothing circuit of coils and capacitors, and calculate ripples for simple circuits.
		7th	AC side current distortion and active power	Able to calculate the total distortion rate of a square wave, as well as the power factor and active power.
		8th	Mid-term exam
	2nd Quarter
		9th	Separately excited inverter	Able to understand the operating principle of separately excited inverters.
		10th	Step-down chopper circuit	Able to calculate the average output voltage of the step-down chopper circuit.
		11th	Boost chopper circuit	Able to calculate the average output voltage of the boost chopper circuit.
		12th	Four quadrant chopper circuit	Able to understand the operating principle of the four-quadrant chopper circuit.
		13th	Single-phase voltage type inverter	Able to understand the operating principle of a single-phase voltage type inverter and calculate the average output voltage.
		14th	Three-phase voltage type inverter and three-phase three level inverter	Able to understand the operating principles of three-phase voltage type inverters and three-phase three-level inverters.
		15th	PWM inverter	Able to understand the operating principle of PWM inverters.
		16th	Return of final exam

Evaluation Method and Weight (%)

	Routine Exam	Little Test	Portfolio	Announcement / approach attitude	Others	Total
Subtotal	60	20	20	0	0	100
Basic ability	20	0	0	0	0	20
Professional ability	40	20	10	0	0	70
Cross-disciplinary ability	0	0	10	0	0	10