Description: Modeling of Z-source Inverter Photovoltaic System and its Main Circuit Design
TIAN Guo-sheng1， TIAN Yan-bing2， DING Xin-ping2， ZHANG Min2
（1.Liaoning Technical University， Huludao 125105， China； 2.Qingdao Technological University， Qingdao 266520， China）
Abstract：This paper focus on the small-signal modeling of the Z-source inverter （ZSI） photovoltaic generation system and
its main circuit design.The small-signal modeling of ZSI photovoltaic generation system is set up，and the transfer functions
of the input voltage-to-shoot-through duty cycle and capacitor voltage-to-control are analyzed.The sample average period
plays an important role in photovoltaic generation maximum power point tracking （MPPT） control，while it is influenced by
main circuit parameters including input capacitor，Z-source network capacitors and inductors.Thus，the quantitative
analysis in those parameters is the design guideline for the main circuit and sample average period.The experiment carried
on prototype
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Z源逆变器光伏并网系统模型及电路参数设计.pdf
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