Capacitor Commutated Converter HVDC(High Voltage Direct Current) 시스템은 무효전력의 수급이 작기 때문에 점호각이 180도까지 증가시킬 수 있으므로 취약한 계통에 적용이 가능하다. 따라서, 본 논문에서는 변압기와 밸브 사이에 직렬커패시터가 연결된 CCC 컨버터, CSCC 컨버터 및 전형적인 전류형 컨버터에 대해 분석하고, 계통의 안정도 측면에서 PSCAD/EMTDC로 CCC 컨버터의 HVDC를 모의함으로써 신뢰성이 높음을 제시하였다.
Capacitor Commutated Converter HVDC system is required the small reactive power. It has the advantage of an application to the week grid because the firing angle ${alpha}$ can be increased to a value well beyond $180^{circ}$. In this paper, The three HVDC converter arrangements which are the CCC(Capacitor Commutated Converter) and the CSCC(Controlled Series Capacitor Convertor) and Conventional Converter are compared the dynamic character. and it find that the CCC HVDC is operating with more reliability. The simulation was conducted to the PSCAD/EMTDC.
