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Output voltage sensor based maximum power point tracking for PV system using SEPIC

机译:使用SEPIC的光伏系统基于输出电压传感器的最大功率点跟踪

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Maximum power point tracking (MPPT) algorithm with a single output voltage sensor for a photovoltaic (PV) system is presented in this paper. The MPPT algorithm is developed by considering the slope (dV/dD) of V - D characteristics. In this method only a voltage divider circuit is used to sense the converter output voltage (V). The steady state behavior, tracking performance for a change in insolation and for a load variation with the output voltage sensor based MPPT algorithm are addressed through experimental results to determine the tracking efficiency. The duty cycle (D) is generated directly without any proportional-integral control loop to simplify the control circuit. Single ended primary inductance converter (SEPIC) is used for experimental validation of the algorithm with microcontroller.
机译:本文提出了一种用于光伏(PV)系统的具有单个输出电压传感器的最大功率点跟踪(MPPT)算法。通过考虑V-D特性的斜率(dV / dD)来开发MPPT算法。在这种方法中,仅使用分压器电路来感测转换器的输出电压(V)。通过实验结果确定稳态效率,基于输出电压传感器的MPPT算法的日照变化和负载变化的稳态行为,跟踪性能。占空比(D)是直接产生的,而没有任何比例积分控制环路,以简化控制电路。单端初级电感转换器(SEPIC)用于通过微控制器对算法进行实验验证。

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