부하의 변동에 따른 유도전동기의 자화 전력과 무효전력의 변화 분석 = Analysis of Changes in Magnetizing Power and Reactive Power of an Induction Motor According to Load Fluctuations

다국어 초록 (Multilingual Abstract)

Induction motor is one of the representative inductive loads. Induction motors have coils in the stator and rotor respectively. This coil is distributed in the stator and the rotor, respectively, and has a resistive component and an inductive component according to the flow of current. The slip of an induction motor depends on the rotational speed. The slip of an induction motor varies according to no-load and changes in load. As this slip changes, resistance and reactance change. In an induction motor, the power required to form a magnetic flux is magnetizing power, and the power including the component used as a leakage component of the stator or rotor in the magnetizing power is called reactive power. The ratio of reactive power to active power in an induction motor is called power factor. In order to compensate the power factor, it is necessary to accurately know the magnitude of the magnetizing power required to form a magnetic flux. In order to know the magnitude of the magnetizing power, it is necessary to find the voltage at the air gap.

참고문헌 (Reference)

1 김종겸 ; 박영진, "유도전동기에 대한 역률 보상설비의 특성 해석" 한국조명.전기설비학회 22 (22): 25-31, 2008

2 김종겸, "유도 전동기 명판 값을 이용한 등가회로도 파라미터 계산" 대한전기학회 70 (70): 127-132, 2021

3 김종겸, "등가회로도를 이용한 유도전동기의 특성 비교 분석" 대한전기학회 63 (63): 7-11, 2014

4 김 종 겸 ; 김 일 중, "극수 및 부하의 크기 변화에 따른 유도전동기의 역률 보상" 대한전기학회 68 (68): 1-5, 2019

5 Min-ho Park, "Induction Machines" Dongmyungsa Publ 1990

6 "IEEE Standard 112, IEEE Standard Test Procedure for Polyphase Induction Motors and Generators"

7 H. W. Dommel., "Electromagnetic Transients Program. Reference Manual(EMTP Theory Book)" Bonneville Power Administration 1986

8 David. R. Brown, "Electro-mechanical Energy Conversion" Macmillan Publishing Company 1996

9 Theodore Wildi, "Electrical Machines, Drives, and Power Systems" Prentice Hall 2002

10 S. Chapman, "Electric Machinery Fundamentals" McGraw -Hill Education 2005

11 M. H. Haque, "Determination of NEMA Design Induction Motor Parameters From Manufacturer Data" 23 (23): 997-1004, 2008