Real‐time diagnosis of high‐speed rail traction transformer in different topologies
نویسندگان
چکیده
منابع مشابه
Controlling Rail Potential of DC Supplied Rail Traction Systems
Most modern DC electrified mass transit systems use a totally floating earth as their grounding strategy. A well-known problem related with totally floating systems is that the touch potentials can be dangerously high. In order to reduce the voltages on rails, several devices exist. Most of these devices allow a direct connection to earth when a certain voltage threshold is exceeded. In this pa...
متن کاملControlling Rail Potential on Dc Supplied Rail Traction Systems
Most of the modern DC electrified mass transit systems use a totally floating earth as their grounding strategy. A well known problem related with totally floating systems is that the touch potentials can be dangerously high. In order to reduce the voltages on rails, several devices exist. Most of these devices allow a direct connection to earth when a certain voltage threshold is exceeded. In ...
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متن کاملPower Electronic Transformer Technology for Traction Applications – An Overview
Combining modern high-power semiconductor devices with constantly improving magnetic materials opens up the possibility to replace bulky low-frequency transformers with a new medium voltage medium frequency conversion structure. While there are still challenges to be addressed related to these so called power electronic transformers, a steadily increasing development effort is evident and consi...
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چکیده ترانسفورماتورهای قدرت ادوات گران قیمتی هستنند که نقش بسیار مهمی را در سیستم های قدرت ایفا می کنند. در سالهای اخیر روشهای مختلفی جهت تشخیص خطا و مونیتورینگ ترانسفورماتورها ارائه شده است. در این پایان نامه برخی از این روشها جهت تعیین پارامتر های ترانسفورماتور در شرایط سالم و خطاهای مختلف در محدوده ی وسیعی از فرکانس بررسی شده است. همچنین با استفاده از روش اجزای محدود و محاسبات بر پایه فرمو...
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ژورنال
عنوان ژورنال: The Journal of Engineering
سال: 2018
ISSN: 2051-3305,2051-3305
DOI: 10.1049/joe.2018.8898