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NOVEL MAXIMUM-POWER-POINT TRACKING ALGORITHM FOR GRID-CONNECTED PHOTOVOLTAIC SYSTEM

机译:网格连接光伏系统的新型最大功率点跟踪算法

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摘要

This paper presents a novel maximum-power-point (MPP) tracking algorithm for photovoltaic (PV) energy conversion systems. The algorithm is based on utilizing the relation between the PV array MPP current and the solar insolation level at different atmospheric conditions. Also, a single-stage grid-connected PV system is proposed to track the MPP of the PV array, using the new algorithm, and to produce a sinusoidal output current in phase with the utility voltage (Le., to obtain a unity power factor). The power stage of the proposed system includes, mainly, a direct current-alternate current inverter, whereas the control stage is based on utilizing both the Proportional Integral (PI) and the P resonant controllers. The obtained results satisfy the desired performance for the proposed system.
机译:本文提出了一种新颖的光伏(PV)能量转换系统的最大功率点(MPP)跟踪算法。该算法基于利用不同大气条件下光伏阵列MPP电流与日照水平之间的关系。此外,提出了一种单级并网光伏系统,以使用新算法跟踪光伏阵列的MPP,并产生与市电电压同相的正弦输出电流(例如,以获得单位功率因数)。 )。所提出的系统的功率级主要包括一个直流-交流逆变器,而控制级则基于利用比例积分(PI)和P谐振控制器。所获得的结果满足了所提出系统的期望性能。

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