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International Journal of Engineering، جلد ۲۶، شماره ۳، صفحات ۳۰۹-۳۱۴
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عنوان فارسی |
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چکیده فارسی مقاله |
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کلیدواژههای فارسی مقاله |
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عنوان انگلیسی |
Harmonic Reduction Technique Using Flying Capacitor Based Z Source Inverter for a DVR |
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چکیده انگلیسی مقاله |
The Dynamic Voltage Restorer (DVR) is a commercially available, popular device to eliminate voltage sags and swells in the distribution lines. Its basic function is to inject the voltage difference (difference between the pre-sag and sag voltage) to the power line and maintains the pre-sag voltage condition in the load side. The efficiency of the DVR depends on the performance of the efficiency control technique involved in switching the inverters. Z-source inverters are recent topological options proposed for buck–boost energy conversion with a number of possible voltage- and current-type circuitries. Common feature noted is their inclusion of an LC impedance network, placed between the dc input source and inverter bridge. This impedance network allows the output end of a voltage-type Z-source inverter to be shorted for voltage boosting without causing a large current flow and the terminal current of a current-type inverter to be interrupted for current boosting without introducing overvoltage oscillations to the system. Therefore, Z-source inverters are, in effect, safer and less complex and can be implemented using only passive elements with no additional active semiconductor needed. This paper presents a selective harmonic elimination using flying capacitor connection in Z-source inverter. Close loop control for a simple system is modeled and simulated using MATLAB software. The simulation results are presented to demonstrate the effectiveness of the proposed DVR system. |
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کلیدواژههای انگلیسی مقاله |
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نویسندگان مقاله |
deepa somasundaram | EEE, Panimalar ins of tech
rajapandian S | EEE, PEC
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نشانی اینترنتی |
http://www.ije.ir/article_72099_4b8887332bca03536986d884fc47859e.pdf |
فایل مقاله |
اشکال در دسترسی به فایل - ./files/site1/rds_journals/409/article-409-2062944.pdf |
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زبان مقاله منتشر شده |
en |
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