علي فاتحي ابراهيم اباد

With the remarkable advancements in technology an‎d the continuous improvement of power system management strategies, the deployment of High Voltage Direct Current (HVDC) transmission systems in modern power networks has grown extensively in recent years. In comparison with High Voltage Alternating Current (HVAC) transmission systems, HVDC provides a wide range of significant advantages that make it particularly suitable for both long-distance bulk power transfer an‎d the operation of power systems under complex an‎d deman‎ding conditions. Among these advantages are the capability of transferring larger amounts of power over long distances with reduced losses, the provision of fast an‎d flexible control of power flows, an‎d the unique ability to interconnect asynchronous networks in a stable an‎d reliable manner. These characteristics highlight HVDC as an optimal an‎d attractive solution for the integration of distributed generation resources as well as large-scale renewable energy plants, such as offshore wind farms an‎d solar power stations, especially in the context of emerging smart grid scenarios. Considering the large volume of power that is typically transmitted through HVDC links an‎d the substantial length of these lines, the design an‎d implementation of reliable an‎d effective protection schemes become issues of paramount importance. HVDC line protection must not only be capable of providing rapid fault detection an‎d accurate fault classification to minimize the risk of equipment damage, but it must also ensure the continuity of power transfer during normal operation without unnecessary interruptions. As a result, the development of advanced HVDC protection strategies an‎d the enhancement of the overall reliability of these systems represent some of the most critical an‎d challenging topics in the field of modern power engineering.

سيستم هاي انتقال HVDC- جريان مستقيم- جريان متناوب- حفاظت

HVDC Transmission Line-Protection- HVAC

Ali Fatehi Ebrahim Abad

Davood Arab Khabouri- Seyed Mohammad Shahrtash