04 مرداد 1403
رحمن دشتي

رحمن دشتی

مرتبه علمی: دانشیار
نشانی: دانشکده مهندسی سیستم های هوشمند و علوم داده - گروه مهندسی برق
تحصیلات: دکترای تخصصی / مهندسی برق
تلفن: +98-7731222752
دانشکده: دانشکده مهندسی سیستم های هوشمند و علوم داده

مشخصات پژوهش

عنوان Applying Dynamic Load Estimation and Distributed-parameter Line Model to Enhance the Accuracy of Impedance-based Fault-location Methods for Power Distribution Networks
نوع پژوهش مقالات در نشریات
کلیدواژه‌ها
ثبت نشده‌است!
مجله ELECTRIC POWER COMPONENTS AND SYSTEMS
شناسه DOI
پژوهشگران رحمن دشتی (نفر اول) ، جواد ساده (نفر دوم)

چکیده

Precise load modeling and load value estimation at each node of power distribution systems are very important for determining the exact location of fault in impedance-based fault-location algorithms. In this article, a modi?ed impedance- based fault-location algorithm is proposed by applying dynamic load estimation and distributed-parameter line model. The load value at each node is estimated by its load factor and power factor. In the proposed fault-location algorithm, the power distribution system and power factor of each node are estimated ?rst, just before the fault, using the recorded data of voltage and current at the beginning of the main feeder. Then, using this information, the initial location of the fault is obtained by analyzing each section. In this process, multiple positions for the fault can result. Thus, the faulted section is determined by analyzing the operation of protective equipment, i.e., fuses, fault indicators, and reclosers, performed by investigating the current patterns at the beginning of feeder. The performance of the proposed method is evaluated based on a real feeder in an Iranian distribution network under different fault conditions. The obtained results show the ef?ciency and accuracy of the proposed method.