采用PI谐振控制器的POSLL变换器双级并网光伏系统

2017 5th International Conference on Control, Instrumentation, and Automation (ICCIA) Pub Date : 2017-11-01 DOI:10.1109/ICCIAUTOM.2017.8258670

S. Fallahzadeh, N. Abjadi, A. Kargar

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引用次数: 1

摘要

提出了一种适用于单相双级光伏并网系统的比例谐振控制器。该系统由最大功率点跟踪器(MPPT)控制器和PR控制器组成。电流控制器采用PR控制器对电网电流进行贴身调节。MPPT采用了众所周知的摄动观察法(P&O)。所提出的MPPT控制器生成光伏面板的参考电压，并与实际电压值进行比较，生成DC-DC变换器的开关命令。高电压增益DC-DC转换采用正输出超升力罗(POSLL) DC-DC变换器。

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Double-stage grid-connected photovoltaic system with POSLL converter using PI resonant controller

In this paper a proportional resonant (PR) controller for the single-phase double-stage grid-connected photovoltaic (PV) system is proposed. The proposed system consists of maximum power point tracker (MPPT) controller and PR controller. The current controller uses PR controller for the close-fitting regulation of grid current. The well-known perturbation and observation method (P&O) is used for MPPT. The proposed MPPT controller generates reference voltage of the PV panel and by comparing with its real value, switching command of DC-DC converter is generated. A positive output super lift Luo (POSLL) DC-DC converter is employed for the high voltage gain DC-DC conversion.

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2017 5th International Conference on Control, Instrumentation, and Automation (ICCIA)

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