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典型文献
Generalized Switched-Capacitor Step-up Multilevel Inverter Employing Single DC Source
文献摘要:
In this paper,a new generalized step-up multilevel DC-AC converter is proposed,which is suitable for applications with low-voltage input sources,such as photovoltaic power generation and electric vehicles.This inverter can achieve a high voltage gain by controlling the series-parallel conversion of the DC power supply and capacitors.Only one DC voltage source and a few power devices are employed.The maximum output voltage and the number of output levels can be further increased through the switched-capacitor unit's extension and the submodule cascaded extension.Moreover,the capacitor voltages are self-balanced without complicated voltage control circuits.The complementary operating mechanism between each pair of switches simplifies the modulation algorithm.The inductive-load ability is fully taken into account in the proposed inverter.Additionally,a remarkable characteristic of the inverter is that the charging and discharging states among different capacitors are synchronous,which reduces the voltage ripple of the front-end capacitors.The circuit structure,the working principle,the modulation strategy,the capacitors and losses analysis are presented in detail.Afterwards,the advantages of the proposed inverter are analyzed by comparing with other recently proposed inverters.Finally,the steady-state and dynamic performance of the proposed inverter is verified and validated by simulation and experiment.
文献关键词:
作者姓名:
Yaoqiang Wang;Kaige Wang;Gen Li;Fengjiang Wu;Kewen Wang;Jun Liang
作者机构:
School of Electrical Engineering,Zhengzhou University,Zhengzhou 450001,China;Henan Engineering Research Center of Power Electronics and Energy Systems,Zhengzhou 450001,China;Zhengzhou University,Zhengzhou 450001,China;Zhoukou Power Supply Company,State Grid Henan Electric Power Co.,Ltd.,Zhoukou 466000,China;Cardiff University,Cardiff CF24 3AA,U.K.;Department of Electrical Engineering,Harbin Institute of Technology,Harbin 150001,China
引用格式:
[1]Yaoqiang Wang;Kaige Wang;Gen Li;Fengjiang Wu;Kewen Wang;Jun Liang-.Generalized Switched-Capacitor Step-up Multilevel Inverter Employing Single DC Source)[J].中国电机工程学会电力与能源系统学报(英文版),2022(02):439-451
A类:
B类:
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AB值:
0.637228
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