为实现利用光伏板运行数据辨识光伏电池的重要参数，并通过这些参数诊断其运行状态，提出将二阶Bézier函数与自适应战争策略算法相结合，得到硅基光伏电池单二极管拓扑中光生电流、二极管反向饱和电流、二极管理想因子、串联电阻和并联电阻这五个未知参数的最优解的方法，对阴影、老化、短路和开路四种常见的故障进行理论和仿真分析，通过实验验证，针对辨识结果中参数的变化与故障类型进行对比，得出光伏单二极管模型五参数与四种典型故障类型存在一定的对应关系，并得到了不同故障类型下光伏组件各输出量的变化规律，为光伏电池故障判别及电池性能的判断提供参考。

In order to realize the use of photovoltaic panel operation data to identify the important parameters of PV cells and diagnose their operation status through these parameters, it is proposed to combine the second-order Bézier function with the Adaptive War Strategy Optimization (AWSO) algorithm to obtain the optimal solutions for the five unknown parameters, namely, photogenerated current, diode reverse saturation current, diode ideal factor, series resistance and parallel resistance of the five unknown parameters of the method, the theoretical and simulation analysis of the four common faults, namely, shadowing, aging, short-circuit and open-circuit, and through experimental validation, for the change of the parameters in the identification results of the comparison with the type of faults, it is concluded that the five parameters of the photovoltaic single diode model and the four typical types of faults have a certain corresponding relationship, and obtained It is concluded that there is a certain correspondence between the five parameters of the PV single diode model and the four typical fault types, and the change rule of the output of PV modules under different fault types is obtained, which provides a reference for the identification of PV cell faults and the judgment of battery performance.