전력전자학회:학술대회논문집 (Proceedings of the KIPE Conference)
- 전력전자학회 2018년도 전력전자학술대회
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- Pages.354-355
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- 2018
회전자 속도와 주파수 편차에 따라 변하는 가변게인을 이용한 플라이휠 에너지 저장장치의 주파수 제어
Frequency control of flywheel energy storage system based on a variable gain depending on the rotor speed and frequency deviation
- Lee, Hyewon (Chungnam National University) ;
- Na, Woonki (California State University) ;
- Kim, Jonghoon (Chungnam National University)
- 발행 : 2018.07.03
초록
Flywheel energy storage system (FESS) operates motor or generator by utilizing the stored kinetic energy in the rotating mass. Thus, the FESS can support the frequency control of the power system. However, the FESS is disabled when the rotor speed reaches to its minium value. Thus, the second frequency dip occurs in the power system. This paper proposes the frequency control scheme of FESS based on a variable gain depending on the rotor speed and frequency deviation. The proposed scheme prevents the second frequency dip because the variable gain decreases depending on the stored in the FESS. The performance of the proposed scheme is investigated for the IEEE 14-bus system.
키워드