载体运动下光伏组件最大功率点动态跟踪方法

Dynamic Tracking Method for Maximum Power Point of Photovoltaic Module Under Carrier Motion

光伏发电技术是实现碳达峰和碳中和的关键技术,如何实现运动载体下光伏组件最大功率点动态跟踪是光伏高效率发电的核心问题。为此,提出一种运动状态光伏组件最大功率点动态跟踪方法,通过利用惯性测量单元获取载体运动姿态,构建坐标转化关系,实现载体运动姿态与光强之间的转换;利用光伏组件五参数模型及光强关系建立了光伏组件动态模型;基于此,构建了光伏组件自适应最大功率点跟踪算法。通过仿真及实验验证了方法的有效性,结果表明,该方法可以快速跟踪载体运动状态下光伏组件最大功率点,相比常规的扰动观察法输出功率提高了4.1%。

Photovoltaic power generation technology is the key technology to achieve carbon peaking and carbon neutrality.How to realize the dynamic tracking of the maximum power point of PV module under the motion carrier is the core problem of high efficiency PV power generation.To this end,a dynamic tracking method of maximum power point of PV module in motion is pro⁃posed.The inertial measurement unit is used to obtain the carrier motion attitude and construct the coordinate transformation rela⁃tionship to realize the conversion between carrier motion attitude and light intensity.The dynamic model of PV module is established by using the five-parameter model of PV module and light intensity relationship.Based on this,an adaptive maximum power point tracking algorithm of PV module is constructed.The effectiveness of the method is verified by simulation and experiment,and the re⁃sults show that the method can quickly track the maximum power point of PV module in carrier motion state,and the output power is increased by 4.1%compared with the conventional disturbance observation method.