Abstract: Fault detection process is much more complex in HVDC systems as many circuits and accessories are involved in this system which is much than HVAC systems. Here an attempt is made to monitor the condition of whole HVDC system. The HVDC system not only involves converter and inverter but have other parts too which are; grid systems, firing circuits, filters, sensing units, protections system and transmission lines. The condition monitoring involve overall present situations of entire system which ultimately ease the operation and maintenance of system and prevent unpredicted breakdowns. The proposed work is a condition monitoring system for back to back HVDC system using artificial neural network.

Keywords: Artificial Neural Network, Faults, HVDC System, Training.