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      온라인 무정전전원장치의 병렬운전 제어기술 = Parallel Operation Control Technique of On-line UPS System

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      https://www.riss.kr/link?id=A76033011

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      다국어 초록 (Multilingual Abstract)

      The parallel operation system of UPS is used to increase reliability of power source at critical load. But parallel UPS system has a few defects, impedance is different from each other and circulating current occurs between UPSs, due to line impedance and parameter variation, though controlled by the same synchronization signal. According to such characteristic of parallel UPS, balanced load-sharing control is the most important technique in parallel UPS operation. In this paper, a novel power deviation compensation algorithm is proposed, it is composed of voltage controller to compensate power deviation that be calculated by using active and reactive current deviation between inverters on synchronous d-q reference frame.
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      The parallel operation system of UPS is used to increase reliability of power source at critical load. But parallel UPS system has a few defects, impedance is different from each other and circulating current occurs between UPSs, due to line impedance...

      The parallel operation system of UPS is used to increase reliability of power source at critical load. But parallel UPS system has a few defects, impedance is different from each other and circulating current occurs between UPSs, due to line impedance and parameter variation, though controlled by the same synchronization signal. According to such characteristic of parallel UPS, balanced load-sharing control is the most important technique in parallel UPS operation. In this paper, a novel power deviation compensation algorithm is proposed, it is composed of voltage controller to compensate power deviation that be calculated by using active and reactive current deviation between inverters on synchronous d-q reference frame.

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      목차 (Table of Contents)

      • ABSTRACT
      • 1.서론
      • 2.병렬형 인버터 회로해석
      • 3.병렬운전 제어기 설계
      • 4.시뮬레이션 및 결과
      • ABSTRACT
      • 1.서론
      • 2.병렬형 인버터 회로해석
      • 3.병렬운전 제어기 설계
      • 4.시뮬레이션 및 결과
      • 5.결론
      • 참고문헌
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