A superconductor flywheel energy storage system (SFES) is an electro-mechanical battery which transforms electrical energy into mechanical energy for storage, and vice versa. The 35 kWh class SFES is composed of a main frame, superconductor bearings, electro-magnetic dampers, a motor/generator, and ...
A superconductor flywheel energy storage system (SFES) is an electro-mechanical battery which transforms electrical energy into mechanical energy for storage, and vice versa. The 35 kWh class SFES is composed of a main frame, superconductor bearings, electro-magnetic dampers, a motor/generator, and a composite flywheel. The energy storing capacity of the SFES can be limited by the operational speed range of the system. The operational speed range is limited by many factors, especially the resonant frequency of the main frame and flywheel. In this study, a steel frame has been designed and constructed for a 35 kWh class SFES. All the main parts, their housings, and the flywheel are aligned and assembled on to the main frame. While in operation, the flywheel excites the main frame, as well as all the parts assembled to it, causing the system to vibrate at the rotating speed. If the main frame is excited at its resonant frequency, the system will resonate, which may lead to unstable levitation at the superconductor bearings and electro-magnetic dampers. The main frame for the 35 kWh class SFES has been designed and constructed to improve stiffness for the stable operation of the system within the operational speed range.
A superconductor flywheel energy storage system (SFES) is an electro-mechanical battery which transforms electrical energy into mechanical energy for storage, and vice versa. The 35 kWh class SFES is composed of a main frame, superconductor bearings, electro-magnetic dampers, a motor/generator, and a composite flywheel. The energy storing capacity of the SFES can be limited by the operational speed range of the system. The operational speed range is limited by many factors, especially the resonant frequency of the main frame and flywheel. In this study, a steel frame has been designed and constructed for a 35 kWh class SFES. All the main parts, their housings, and the flywheel are aligned and assembled on to the main frame. While in operation, the flywheel excites the main frame, as well as all the parts assembled to it, causing the system to vibrate at the rotating speed. If the main frame is excited at its resonant frequency, the system will resonate, which may lead to unstable levitation at the superconductor bearings and electro-magnetic dampers. The main frame for the 35 kWh class SFES has been designed and constructed to improve stiffness for the stable operation of the system within the operational speed range.
* AI 자동 식별 결과로 적합하지 않은 문장이 있을 수 있으니, 이용에 유의하시기 바랍니다.
제안 방법
In this study, the main frame for the 35 kWh class SFES has been designed and constructed for stable operation of the system. Stiffness of the 35 kWh class SFES main frame was improved from the earlier 10 kWh class SFES main frame model, leading to a higher resonant frequency, which allows for stable operation within the operational speed range.
대상 데이터
In this study, a steel frame has been designed and constructed for a 35 kWh class SFES. All the main parts, their housings, and the flywheel are aligned and assembled on to the main frame.
A 10 kWh class SFES was built and tested at KEPCO Research Institute in 2010. The 10 kWh class rotor was a vertical axis open-core type flywheel, and the housings for the stators of the main parts were assembled to the main frame. The 10 kWh class SFES main frame was designed and built as shown in Fig.
The 10 kWh class rotor was a vertical axis open-core type flywheel, and the housings for the stators of the main parts were assembled to the main frame. The 10 kWh class SFES main frame was designed and built as shown in Fig. 1. Cast iron(FCD 450) was used to build the ф1720ⅹ980H main frame, and the cross-section of the frame was molded into a trapezoidal form and fixed at the bottom flange to create a stable overall shape.
참고문헌 (4)
J. R. Hull, "Superconducting bearings", Supercond. Sci. Technol., vol. 13, p.R1 (2000).
Nagaya, S. et al., "Study on high temperature superconducting magnetic bearings for 10 kWh flywheel energy storage system", IEEE Trans. Applied Supercon., vol 11, pp. 1649-1652 (2001).
Coombs, T. et al., "Superconducting magnetic bearings for energy storage flywheels", IEEE Trans. Applied Supercon., vol. 9, pp. 968-971 (1999).
Ichihara, T. et al., "Application of superconducting magnetic bearings to a 10 kWh-class flywheel energy storage system", IEEE Trans. Applied Supercon., vol. 15, pp. 2245-2248 (2005).
이 논문을 인용한 문헌
활용도 분석정보
상세보기
다운로드
내보내기
활용도 Top5 논문
해당 논문의 주제분야에서 활용도가 높은 상위 5개 콘텐츠를 보여줍니다. 더보기 버튼을 클릭하시면 더 많은 관련자료를 살펴볼 수 있습니다.
※ AI-Helper는 부적절한 답변을 할 수 있습니다.