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Iranian Journal of Electrical and Electronic Engineering، جلد ۱۷، شماره ۴، صفحات ۲۰۳۶-۲۰۳۶
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کلیدواژه‌های فارسی مقاله
عنوان انگلیسی A Novel DVR Topology to Compensate Voltage Swell, Sag, and Single-Phase Outage
چکیده انگلیسی مقاله Aim of this paper is to attain the highest voltage sag and swell compensation using a direct converter-based DVR topology. The projected DVR topology consists of a direct converter with bidirectional switches, a multi winding transformer with three primary windings and secondary winding and a series transformer. When voltage swell occurs in a phase, the same phase voltage can be utilized to mitigate the swell as huge voltage exists in the phase where swell has occurred. So it is possible to mitigate an infinite amount of swell. In all the DVR topologies, the converter is only used to synthesize the compensating voltage. The range of voltage sag mitigation depends upon the magnitude of input voltage available for the converter. If this input voltage of the direct converter is increased, then the range of voltage compensation could also be increased. Input voltage of the direct converter is increased using the multi winding transformer. The direct converter is synthesizing the compensating voltage. This compensating voltage is injected in series with the supply voltage through the series transformer and the sag is mitigated. In this proposed topology, the input voltage for the direct converter is increased by adding the three phase voltages using a multi winding transformer. Thus the voltage sag compensating range of this topology is increased to 68% and the swell compensating range is 500%. Ordinary PWM technique has been used to synthesize the PWM pulses for the direct converter and the THD of the compensated load voltage is less than 5%. This topology is simulated using MATLAB Simulink and the results are shown for authentication.
کلیدواژه‌های انگلیسی مقاله Dynamic Voltage Restorer (DVR), Direct Converter, Bidirectional Switch, Multi Winding Transformer, Ordinary PWM, MATLAB Simulink.
نویسندگان مقاله | S. A. Rahman
Department of Electrical and Computer Engineering, Institute of Technology, University of Gondar, Ethiopia.


| S. Birhan
Department of Electrical and Computer Engineering, Institute of Technology, University of Gondar, Ethiopia.


| E. D. Mitiku
Department of Electrical and Computer Engineering, Institute of Technology, University of Gondar, Ethiopia.


| G. T. Aduye
Department of Electrical and Computer Engineering, Institute of Technology, University of Gondar, Ethiopia.


| P. Somasundaram
College of Engineering Guindy, Anna University, India.
نشانی اینترنتی http://ijeee.iust.ac.ir/browse.php?a_code=A-10-1038-1&slc_lang=en&sid=1
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کد مقاله (doi)
زبان مقاله منتشر شده en
موضوعات مقاله منتشر شده Industrial and Commercial Power Systems
نوع مقاله منتشر شده Research Paper
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