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tabatabaei, seyed hossein, Eliasi, Hussein, Najafi, Hamidreza, jalilian, alireza. (1399). Voltage unbalancing reduction in a stand-alone ac-dc hybrid microgrid based on floating compensation reference. نشریه علمی دانشگاه سیستان و بلوچستان, 3(3), 235-247. doi: 10.22111/ieco.2020.31615.1209
seyed hossein tabatabaei; Hussein Eliasi; Hamidreza Najafi; alireza jalilian. "Voltage unbalancing reduction in a stand-alone ac-dc hybrid microgrid based on floating compensation reference". نشریه علمی دانشگاه سیستان و بلوچستان, 3, 3, 1399, 235-247. doi: 10.22111/ieco.2020.31615.1209
tabatabaei, seyed hossein, Eliasi, Hussein, Najafi, Hamidreza, jalilian, alireza. (1399). 'Voltage unbalancing reduction in a stand-alone ac-dc hybrid microgrid based on floating compensation reference', نشریه علمی دانشگاه سیستان و بلوچستان, 3(3), pp. 235-247. doi: 10.22111/ieco.2020.31615.1209
tabatabaei, seyed hossein, Eliasi, Hussein, Najafi, Hamidreza, jalilian, alireza. Voltage unbalancing reduction in a stand-alone ac-dc hybrid microgrid based on floating compensation reference. نشریه علمی دانشگاه سیستان و بلوچستان, 1399; 3(3): 235-247. doi: 10.22111/ieco.2020.31615.1209

Voltage unbalancing reduction in a stand-alone ac-dc hybrid microgrid based on floating compensation reference

International Journal of Industrial Electronics Control and Optimization
مقاله 32، دوره 3، شماره 3، پاییز 2020، صفحه 235-247  XML اصل مقاله (3.03 MB)
نوع مقاله: Research Articles
شناسه دیجیتال (DOI): 10.22111/ieco.2020.31615.1209
نویسندگان
seyed hossein tabatabaei1؛ Hussein Eliasi email 1؛ Hamidreza Najafi2؛ alireza jalilian3
1Faculty of Electrical and Computer Engineering, University of Birjand, Birjand, Iran
2University of Birjand
3Department of Electrical Engineering -Center of Excellence for Power System Automation and Operation - Iran University of Science and Technology
چکیده
A hybrid AC-DC microgrid consists of an AC and a DC subgrid that are connected to each other through an interlinking converter (IC). The main function of an IC under islanded conditions is to transfer power between the two subgrids. In this paper, a scheme is presented to reduce the voltage unbalance factor in a hybrid AC-DC microgrid by using the free capacity of the IC. The free capacity of this converter is determined based on the current passing through each leg, and the amount of voltage unbalance compensation on the AC side of the microgrid is then obtained. The reference current of voltage unbalance compensation is calculated by using the positive, negative, and zero sequence components of the voltage of IC terminals. The total reference current is obtained by adding the reference current of voltage unbalance compensation and the current calculated for power transfer. Furthermore, a proportional-resonant (PR) controller is used in the control system of the four-leg inverter. Therefore, the reference current is properly tracked by the power stage of the inverter. Simulation results verify the accuracy of the proposed scheme under different conditions.
کلیدواژه‌ها
hybrid AC-DC microgrid؛ power quality؛ voltage unbalance؛ interlinking converter
آمار
تعداد مشاهده مقاله: 131
تعداد دریافت فایل اصل مقاله: 140


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