Abstract




 
   

IJE TRANSACTIONS B: Applications Vol. 32, No. 5 (May 2019) 701-709   

PDF URL: http://www.ije.ir/Vol32/No5/B/12-3073.pdf  
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  MITIGATION TRANSFORMER INRUSH CURRENT USING MODIFIED TRANSIENT CURRENT LIMITER
 
M. Ganji, M. Bigdeli and D. Azizian
 
( Received: August 04, 2018 – Accepted in Revised Form: March 07, 2019 )
 
 

Abstract    This study presents a modified transient current limiter (MTCL) for mitigation the inrush current of transformers. The MTCL is based on conventional transient current limiter (TCL), which, its configuration is modified to overcome the TCL drawbacks of operation. The proposed MTCL offers lower power losses and voltage/current THD during normal operation mode. It needs only one limiting reactor instead of two limiting reactors, which results in cost saving. The theoretical analysis of the MTCL for suppressing the inrush current has been presented and the performance was tested by PSCAD/EMTDC simulation anda experimental prototype. Both simulation and experimental results showed that the MTCL is effective for suppressing the transformer inrush current. Also, the capability of the MTCL for suppressing the transformer inrush current was compared with the conventional TCL.

 

Keywords    Transformer; Inrush Current; Modified Transient Current Limiter; Simulation; Experimental Results

 

چکیده   

در این مقاله ساختار محدودساز جریان گذرای اصلاح‌شده به منظور کاهش جریان هجومی ترانسفورماتور ارائه شده است. اساس عملکرد این ساختار بر پایه محدودساز جریان گذرای معمول می‌باشد که ساختار آن به منظور بهبود معایب عملکردی آن اصلاح گشته است. مزایای این محدودساز عبارت‌اند از تلفات توان کمتر، اعوجاج ولتاژ و جریان کمتر نسبت به محدودساز جریان گذرای معمولی. همچنین در ساختار محدودساز پیشنهادی فقط از یک راکتور محدودکننده به جای دو راکتور محدودکننده استفاده شده است که باعث کاهش هزینه به‌کارگیری آن برای کاهش جریان هجومی می‌گردد. در ابتدا تئوری و ساختار این محدودساز ارائه شده و سپس کارایی آن برای کاهش جریان هجومی توسط نتایج شبیه‌سازی و آزمایشگاهی مورد بررسی قرارگرفته است. نتایج شبیه‌سازی و آزمایشگاهی نشان می‌دهد که محدودساز پیشنهادی به خوبی جریان هجومی ترانسفورماتور را محدود می‌کند و دارای عملکرد بهتری نسبت به محدودساز معمولی دارد.

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