Electrical Machinery 1

Course Information

College	Anan College	Year	2021
Course Title	Electrical Machinery 1
Course Code	1313E01	Course Category	Specialized / Compulsory
Class Format	Lecture	Credits	School Credit: 1
Department	Course of Electrical Engineering	Student Grade	3rd
Term	Second Semester	Classes per Week	2
Textbook and/or Teaching Materials	Electrical equipment lecture notes that can be understood from the basics (Ohmsha) / None
Instructor	Park Youngsoo

Course Objectives

1. Explain the principle and characteristics of the transformer, and calculate the primary and secondary parameters using the equivalent circuit
2. Explain the principle of the synchronous machine
3. Explain the principle of the induction machine
4. Explain the principle of the DC machine
5. Explain the need for magnetic circuits and calculate parameters using Ohm's law of magnetic circuits

Rubric

	Ideal achievement level	Standard achievement level	Minimum achievement level
Achievement Goal 1	Able to calculate transformer characteristic values, in addition to standard reach levels.	In addition to the minimum reach level, able to calculate primary and secondary parameters using the equivalent circuit of the transformer.	Able to explain the principle and role of transformers.
Achievement Goal 2	In addition to the standard reach level, able to calculate the torque and output of the synchronous machine.	In addition to the minimum reach level, able to calculate the induced electromotive force and rotation speed of the synchronous machine.	Able to explain the principle and role of the synchronous machine.
Achievement Goal 3	In addition to the standard reach level, able to calculate the rotation speed of the induction machine and the secondary parameters.	In addition to the minimum reach level, able to calculate the induced electromotive force and slip of the induction machine.	Able to explain the principle and role of the induction machine.
Achievement Goal 4	In addition to the standard achievement level, able to explain the difference in structure and parameters depending on the type of excitation circuit, and can calculate each torque and rotation speed.	In addition to the minimum reach level, able to calculate the induced electromotive force and torque of the DC machine.	Able to explain the principle and role of DC machines.
Achievement Goal 5	In addition to the standard reach level, able to use Ampere's law to derive Ohm's law in a magnetic circuit and calculate the magnitude of the magnetic flux in a magnetic circuit.	In addition to the minimum level of achievement, able to calculate parameters using Ohm's law in magnetic circuits.	Able to explain the need for magnetic circuits.

Assigned Department Objectives

学習・教育到達度目標 D-1 （設計・システム系，情報・論理系，材料・バイオ系，力学系を含む工学の基礎となる学問分野について，自主的かつ継続的に学習できる。）

Teaching Method

Outline:

The purpose is to understand the principle and structure of a transformer, which is an AC quiescent power converter, along with other characteristics. The purpose of this study is to understand the basic characteristics of DC machines, induction machines, and synchronous machines, which are typical AC rotary power converters, based on the principle and structure of each rotating machine and the equivalent circuit.

Style:

Class will be conducted in a lecture style. You will take quizzes to confirm your homework. Homework to promote self-study after class will be assigned.
[Class time 30 hours]

Notice:

Prepare your own smart device to access LMS and submit your homework online during class.
Be sure to submit your homework on time.
When creating a report (portfolio), comply with copyright and cite data correctly.

Course Plan

			Theme	Goals
2nd Semester
	3rd Quarter
		1st	Introduction	Explain the differences and similarities in the principles of transformers, DC machines, synchronous machines, and induction machines.
		2nd	Magnetic circuit	From Ampere's law, Ohm's law of magnetic circuits can be derived, and the parameters of magnetic circuits can be calculated.
		3rd	Transformer	From Ohm's law of the magnetic circuit, the conservation law of the magnetomotive force and the relational expression between the transformation ratio and the turns ratio can be derived, and the various parameters of the transformer can be calculated.
		4th	Transformer equivalent circuit	You can create an equivalent circuit diagram by removing the magnetic circuit from the transformer circuit and calculate the parameters on the secondary side.
		5th	Transformer characteristics	The specified efficiency and all-day efficiency can be obtained by using the output power and various loss values.
		6th	Electromotive force	The kinetic electromotive force can be expressed in vector form and differential equation form, and its magnitude can be calculated.
		7th	Electromagnetic force	The electromagnetic force can be expressed in vector form and differential equation form, and its magnitude can be calculated.
		8th	Mid-term exam
	4th Quarter
		9th	Rotating magnetic field	Explain how to generate a rotating magnetic field, and can calculate the magnitude of the magnetic flux of a synthetic magnetic field at a certain angle on the circumference.
		10th	Synchronous generator	Explain the power generation principle of a synchronous generator and calculate the induced electromotive force generated by the synchronous generator.
		11th	Synchronous motor	Explain the rotation principle of synchronous motors and calculate the torque and output of synchronous motors
		12th	DC motor	Explains the rotation principle of DC motors and can calculate the rotation speed and torque of the rotor.
		13th	Excitation circuit of DC machine	Explains the difference in structure and parameters depending on the type of excitation circuit, and can calculate each torque and rotation speed.
		14th	Induction motor	Explains the rotation principle and slip of an induction motor, and can calculate the rotor rotation speed.
		15th	Equivalent circuit of induction motor	You can write the equivalent circuit of an induction motor and calculate the induced electromotive force and current on the secondary side.
		16th	Final exam

Evaluation Method and Weight (%)

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