Characteristic Analysis of DC Electric Railway Systems with Superconducting Power Cables Connecting Power Substations

analysis of power in the network society

اندیشمندان و صاحب نظران علوم اجتماعی بر این باورند که مرحله تازه ای در تاریخ جوامع بشری اغاز شده است. ویژگیهای این جامعه نو را می توان پدیده هایی از جمله اقتصاد اطلاعاتی جهانی ، هندسه متغیر شبکه ای، فرهنگ مجاز واقعی ، توسعه حیرت انگیز فناوری های دیجیتال، خدمات پیوسته و نیز فشردگی زمان و مکان برشمرد. از سوی دیگر قدرت به عنوان موضوع اصلی علم سیاست جایگاه مهمی در روابط انسانی دارد، قدرت و بازتولید...

On DC-Segmentation of Interconnected Power Systems

The ultimate goal of power system operation and planning is to increase power system reliability which enforces interconnected operation of power system. As a result of power system interconnection, the inter-area oscillation under different disturbances may cause power system partial or total blackout. DC-segmentation of interconnected power systems is a solution in which the topology of the n...

Power-Electronics Issues of Modern Electric Railway Systems

After de-regulation of the former state-owned railways and severe restructuring of the railway industry in the last 15 years, more innovative vehicle concepts saw the light of the day. Power electronics, already formerly being a pacemaker for progress of traction vehicles, brought forth an utmost standardization of the main drive by means of the IGBT-converter-fed induction motor drive. This is...

Power Delivery in Systems with Lossy Cables

New Generation of DC Power Transmission Technology Using HTS Cables

High Tc superconducting (HTS) cables and their application to develop a DC power transmission system with substantial advantages have been studied. Technical analysis of the HTS DC electrical power transmission system behaviours have been carried out with the HTS DC cable technology employed and the system models built. Index Terms -High Temperature Superconductor (HTS), HTS Cable, DC Transmiss...