Earticle

초록

영어

PCS needs to freely switch AC and DC to connect the battery, external AC loads and renewable energy in both directions for energy efficiency. Whenever converting happens, power loss inevitably occurs. Minimization of the power loss to save electricity and convert it for usage is a very critical function in PCS. PCS plays an important role in the ESS(Energy Storage System) but the importance of stabilizing semiconductors on PCB(Printed Circuit Board) should be empathized with a risk of failure such as a fire explosion. In this study, the temperature variation inside PCS was reviewed by cooling fan on top of PCS, and the vibration characteristics of PCS were analyzed during truck transportation for reliability of the product. In most cases, a cooling fan is mounted to control the inner temperature at the upper part of the PCS and components generating the heat placed on the internal aluminum cooling plate to apply the primary cooling and the secondary cooling system with inlet fans for the external air. Results of CFD showed slightly lack of circulating capacity but simulated temperatures were durable for components. The resonance points of PCS were various due to the complexity of components. Although they were less than 40 Hz which mostly occurs breakage, it was analyzed that the vibration displacement in the resonance frequency band was very insufficient. As a result of random-vibration simulation, the lower part was analyzed as the stress-concentrated point but no breakage was shown. The steel sheet could be stable for now, but for long-term domestic transportation, structural coupling may occur due to accumulation of fatigue strength. After the test completed, output voltage of the product had lost so that extra packaging such as bubble wrap should be considered.

목차

Abstract
서론
재료 및 방법
결과 및 고찰
1. PCS 내부의 CFD 열유동 특성
2. PCS의 공진 및 랜덤(random) 진동 특성
결론
감사의 글
참고문헌

키워드

저자

• 주민정 [ Minjung Joo | 한국건설생활환경시험연구원 ]
• 서상욱 [ Sang Uk Suh | 한국건설생활환경시험연구원 ]
• 오재영 [ Jae Young Oh | 한국건설생활환경시험연구원 ] Corresponding author
• 정현모 [ Hyun-Mo Jung | 경북과학대학교 물류패키징과 ]
• 박종민 [ Jong-Min Park | 부산대학교 바이오산업기계공학과 ]

참고문헌

발행기관

간행물

표지보기 관심저널 등록

• 간행물명

  한국포장학회지 [Journal of Korea Society of Packaging Science & Technology]

• 간기

  연3회

• pISSN

  1226-0207

• 수록기간

  1994~2026

• 등재여부

  KCI 등재

• 십진분류

  KDC 530 DDC 620