친환경 Ultra-capacitor에 의한 순시전압강하의 직렬전압보상 시스템

다국어 초록 (Multilingual Abstract)

A series voltage compensation(SVC) system is a power-electronics controller that can protect sensitive loads from disturbance in the supply system. Especially, voltage sags are considered the dominant disturbances affecting the power quality. This paper dealt with a system of off-line type voltage sag compensation by using a bi-directional DC/DC converter of environmentally friendly ultra-capacitor. This capacitor is attached to the DC link of SVC through the high-efficiency DC/DC converter in order to compensate the DC link voltage drop during short-term power interruption as voltage sags.
Therefore, in this paper, a DC/DC converter to control high-efficiency energy of ultra-capacitor and voltage sag detection algorithm of off-line type SVC systems are newly introduced. According to the results of experimental of prototype system, it is verified that the proposed system has effectiveness of voltage sag compensation using an ultra-capacitor.

목차 (Table of Contents)

• Abstract
• 1. 서론
• 2. Ultra-capacitor의 특성과 고효율 충전제어
• 3. 순시전압강하의 발생과 직렬전압보상(SVC)
• 4. SVC 시스템의 구성
• 5. 실험결과 및 고찰
• 6. 결론
• 참고문헌
• 저자소개

참고문헌 (Reference)

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