The Journal of the Korea institute of electronic communication sciences (한국전자통신학회논문지)

Korea Institute of Electronic Communication Science (한국전자통신학회)
권호 표지
DOI QR코드

DOI QR Code

A Study on Cooling System for Efficiency Improvements of 3kW Outdoor Type Photovoltaic Inverter

3kW급 옥외형 태양광 인버터의 효율개선을 위한 냉각시스템 연구

  • Received : 2014.03.03
  • Accepted : 2014.05.15
  • Published : 2014.05.31
Download PDF
⟨ Previous Next ⟩

Abstract

Recently, photovoltaic inverter is received attention in photovoltaic with introduction of feed-in tariff. However, this inverter has problems such as inability to respond flexible at climate change due to its opening, and decrease of efficiency and lifetime due to its abnormal operation. To solve the problem, we desire to develop the eco-inverter which has a temperature control to respond easily on the change of temperature, and use the sealed structure not to affect the environment. In addition, we derive the optimal position of cooling system which is placed inside of inverter to minimize the power consumption, and proposed the effective measure to improve the efficient of inverter by deciding the number of cooling system.

최근 태양광 발전 산업에서 가격매입제도가 도입되면서 주목받고 있는 태양광 인버터는 대부분 개방형 통풍구조로 인해 기후변화에 유연하게 대응하지 못하고 설치환경에 따라 이상동작이 발생하여 효율 및 수명이 감소하는 문제점이 발생한다. 이러한 문제점을 해결하고자 외부환경에 영향을 받지 않도록 밀폐형 구조를 사용하고 계절별 온도에 따른 변화에 쉽게 대응하도록 새로운 냉각시스템을 부착한 친환경 태양광 인버터를 개발하고자 한다. 또한 냉각시스템의 소비전력을 최소화 하기위해 인버터 내부에 부착한 냉각시스템의 최적 구간을 도출하고 사용 냉각장치의 개수를 결정하여 인버터 효율을 향상시키고자한다.

Keywords

References

  1. Y. Ko, "The consideration trend of photovoltaic system and its application to the smart grid," J. of The Korea Institute of Electronic Communication Sciences, vol. 5, no. 1, 2011, pp. 305-308.
  2. J. Ko, E. Jeon, B. Cho, and S. Hong, "Photovoltatic system for the efficient management and performance analysis of MCU implementation," J. of The Korea Institute of Electronic Communication Sciences, vol. 5, no. 1, 2011, pp. 409-411.
  3. C.-S. Kown, "Maximum efficiency point tracking algorithm for improving efficiency of photovoltaic power generating system," Master's Thesis, Hanbat University, 2012.
  4. J.-H. Kim, B.-G. Yu, J.-H. So, K.-O. Lee, and G.-J. Yu, "A study of korean efficiency of PV PCS," J. of the Korea Solar Energy Society, vol. 29, no. 2, 2009, pp. 356-360.
  5. Y.-J. Kim, Y.-C. Bae, and K.-H. Kim, "The design of protection circuit of invert of driver for motor control," J. of the Korea Institute of Electronic Communication Sciences, vol. 7, no. 1, 2013, pp. 172-174.
  6. S. Kim, C. Hong, J. Park, S. Lee, and S. Ryoo, "The optimal design of heat sink for 4kW photovoltaic inverter by using thermal and fluid simulation," J. of Korea Society for Computational Fluids Engineering, vol. 2013, no. 5, 2013, pp. 248-254.
  7. C. Mock, S. Ryoo, S. Kim, S. Ann, J. Jun, C. Hong, S. Na, and K. Kim, "A comparative evaluation between computaional and experimental heat fluid dynamics for 1.5 MVA high voltage inverter system," J. of Korea Society for Computational Fluids Engineering, vol. 2012, no. 5, 2012, pp. 87-92.