Guía para el ajuste de las protecciones eléctricas de sistemas DC : guía para el ajuste de la protección diferencial de DC del convertidor y de la protección de circuito abierto de electrodos de un sistema HVDC (High-Voltage Direct Current).

Abstract

The purpose of this Curricular Integration Work is to propose an adjustment guide for the DC differential protection of the converter and the open circuit protection of the electrodes on the DC side of the single-pole HVDC transmission system of CIGRE, based on the best proposals of adjustment criteria identified in the available technical literature. For the validation of its correct operation, it has been decided to use the most widespread electromagnetic transient program in the world ATPDraw. Initially, CIGRE's single-pole HVDC system is modeled, to later model a fault event at the converter terminals and the opening of the electrode line. The converter DC differential protection and the electrode open circuit protection serve to counteract the mentioned events. Finally, the two protections are adjusted on the proposed DC base system, according to the best proposals of adjustment criteria identified and validated with the help of the simulation in ATPDraw software.