Design and Control of Fully Parallel Embedded Zsource Inverters Based Flexible Photovoltaic Systems for Grid Power Quality Improvement under Distorted Condition
محل انتشار: بیست و یکمین کنفرانس مهندسی برق ایران
سال انتشار: 1392
نوع سند: مقاله کنفرانسی
زبان: انگلیسی
مشاهده: 1,209
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شناسه ملی سند علمی:
ICEE21_860
تاریخ نمایه سازی: 27 مرداد 1392
چکیده مقاله:
This paper presents the design and control of fully parallel embedded Z-source (FPEZ-source) inverter in flexible photovoltaic (FPV) systems. FPEZ-source inverters are one ofthe Embedded Z-source (EZ-source) inverter topologies with two isolated dc sources embedded with each inductor of Xshapednetwork in series, so two PV panels can be used in this structure and PV input current flows smoothly during the whole switching period unlike the traditional Z-source inverters without any extra LC filter. Inductor and capacitor of X-shaped impedance network is designed in a way that the ripple ofcapacitor voltage and inductor current could be put in a desired value .Moreover the corrected p-q control theory and simple MPPT method are used as reference current generator for FPV system that injects maximum available power of PV array and compensates load harmonics, reactive power and imbalance. Finally simulation is performed by PSCAD/EMTDC software, and results are presented to demonstrate effectiveness of proposed concept
کلیدواژه ها:
نویسندگان
Saeid Khani
East Azarbayjan Electric Power Distribution Company,Tabriz, Iran
Leila Mohammadian
Azad University, Shabestar
Seyed Hossein Hosseini
University of Tabriz, Iran
Saeid Ghasemzadeh
University of Tabriz, Iran