朱亮,许继和,杨爱超,邝昊云,胡亮.基于磁通门的光伏电流汇流装置校准方法[J].电测与仪表,2019,56(19):141-146. Zhu Liang,Xu Jihe,Yang Aichao,Kuang Haoyun,Hu Liang.Calibration method for photovoltaic current collecting device based on fluxgate[J].Electrical Measurement & Instrumentation,2019,56(19):141-146.
基于磁通门的光伏电流汇流装置校准方法
Calibration method for photovoltaic current collecting device based on fluxgate
The photovoltaic combiner box can reduce the connection of the photocell array to the inverter. It is one of the basic devices for the normal operation of the photovoltaic power plant. The junction box equipment using the Hall sensor cannot meet the requirements of the photovoltaic power generation system when the ambient temperature changes greatly. In this paper, a photovoltaic current sinking device based on high-accuracy fluxgate sensor, hall current sensor and low-power single-chip PIC16F1947 is designed to overcome this defect. In order to improve the current measurement accuracy, this paper also proposes a two-point successive interpolation correction method based on least squares method. Finally, experiments carried out verify the effectiveness of the proposed design and method.
