단상유도전동기 Soft-Start를 위한 구동시스템의 구현

다국어 초록 (Multilingual Abstract)

A Single phase induction motor is the predominant fractional horsepower power rating, extensively used in domestic and industrial applications. For example, these motors provide the motive power to washing machines, fans, refrigerators, etc.
A new method to start smoothingly a single phase induction motor by using a TRIAC is presented in this paper without the centrifugal switch. Solid state soft starters based on TRIAC's often used to decrease the starting current of the single phase motors. However, the capacitor-start single phase induction motor using centrifugal or relay switch is one of the most widely used of all the types of single phase motors.
In this paper, single phase induction motor input current was detected by a small current transformer and determined TRIAC gate signal by using opamp analog circuit. The soft-start strategy is based on limited auxiliary current angle during starting period in the closed-loop control.
The simulation and experimental result show the motor's starting characteristics of the proposal starting system and are compared with centrifugal switch starting motor.

목차 (Table of Contents)

• 목차
• List of tables = ⅰ
• List of figures = ⅱ
• ABSTRACT = ⅴ
• Ⅰ. 서론 = 1
• Ⅱ. 등가회로에 의한 단상유도전동기의 특성해석 = 3
• A. 단상유도전동기 등가회로 = 3
• B. 단상유도전동기 d-q모델 = 4
• Ⅲ. 시뮬레이션 = 12
• Ⅳ. 전류제어 구동 시스템 = 18
• A. 전원부 = 19
• B. 스위칭 소자 = 19
• C. 주권선 전류검출 및 동기신호 발생부 = 22
• D. 위상 제어 신호부 = 25
• E. 게이트 신호부 = 29
• Ⅴ. 실험 및 결과 = 31
• A. 실험 = 31
• B. 실험 결과 및 고찰 = 38
• Ⅵ. 결론 = 40
• 참고문헌 = 41
• 부록 = 43