Earticle

초록

영어

A linear compressor generates pulsating pressure and oscillating flow in a cryocooler such as Stirling cryocooler and pulse tube refrigerator. It is driven by AC power source and designed to operate at resonance of piston motion. The driving voltage level is determined by electric parameters of resistance, inductance and thrust constant of linear motor. From voltage equation on linear motor, the power factor of driving power is inherently less than 1. The phase difference between voltage and current of supplied power can be zero using capacitor and this can minimize a supply voltage level. Especially, the linear compressor of kW class requires high voltage and thus can cause a difficulty in selecting power supply unit due to limitation of voltage level. The capacitor in driving electric circuit is useful to settle this problem. In this study, the electric circuit of linear compressor is analytically investigated with assumption of mechanical resonance. The electric parameters of commercial linear motor are used in the analysis. The effects of capacitor on driving voltage level and power factor are investigated. From analytic results, it is shown that the voltage level can be mimized with using capacitor in driving electric circuit.

목차

Abstract
 1. 서론
 2. 선형압축기 해석
  2.1 선형압축기 해석모델
  2.2 해석 결과
 3. 콘덴서 적용 구동회로 해석
 4. 결론
 감사의 글
 참고문헌

키워드

저자

• 고준석 [ Junseok Ko | 정회원, 한국기계연구원 극한기계부품연구본부 ] 교신저자
• 김효봉 [ Hyobong Kim | 정회원, 한국기계연구원 극한기계부품연구본부 ]
• 박성제 [ Seong-Je Park | 정회원, 한국기계연구원 극한기계부품연구본부 ]
• 홍용주 [ Yong-Ju Hong | 정회원, 한국기계연구원 극한기계부품연구본부 ]
• 염한길 [ Hankil Yeom | 정회원, 한국기계연구원 극한기계부품연구본부 ]
• 고득용 [ Deuk-Yong Koh | 정회원, 한국기계연구원 극한기계부품연구본부 ]

참고문헌

발행기관

간행물

표지보기 관심저널 등록

• 간행물명

  한국초전도·저온논문지 (구 한국초전도저온공학회논문지) [Progress in Superconductivity and Cryogenics]

• 간기

  계간

• pISSN

  1229-3008

• eISSN

  2287-6251

• 수록기간

  1999~2026

• 등재여부

  KCI 등재,SCOPUS

• 십진분류

  KDC 427 DDC 537