This paper is to study SOFC(Solid Oxide Fuel Cell) technology which is becoming increasingly more important in recent power development market. I will propose the most suitable fuel cell type through efficiency analysis by type of fuel cell in operation. In this paper, I analyzed the characteristics of SOFC development, theoretical study of the system technology and the level of progress in SOFC technology for each generation. In conclusion, through analysis of the operation data of the installed and operating fuel cell power generation system, it was found that SOFC is 45% more efficient than PAFC and 25% more efficient than MCFC.

Abstract
1. 서 론
2. 연료전지의 이론적 배경
    2.1 연료전지의 종류
    2.2 SOFC 단위전지 작동원리
    2.3 SOFC의 장단점
3. SOFC 발전시스템
    3.1 에너지 서버(Energy Sever)
    3.2 SOFC 발전시스템 구성
    3.3 SOFC 발전시스템 종류
4. SOFC 효용성 분석
    4.1 연로전지 효용성 비교
5. 결 론
References

• 이정훈(professor, Dept. of Control & Robotics Engineering, Gyeongsang National University) | Jung-Hoon Lee Corresponding author