Realization of Fault Analysis Auxiliary Decision System in HVDC Transmission System

The large number of HVDC (high voltage direct current) projects operated greatly increases the complexity of operation and maintenance. The paper briefly introduces the present situation of HVDC fault analysis and the problem faced. The fault analysis assistant decision system is developed to assist in quick fault location, which provides strong technical support for stable operation of power system. Combined with engineering practice, results shows that the system performs well.