水肥精量配比灌溉系统设计

精确地控制农业灌溉中的水肥配比,能够很好地促进农作物的生长,大大提高化肥利用率。为此,开发了一套水肥精量配比灌溉系统,采用水路和肥路混合的方法,利用直流调速器控制泵来调节管道中水肥流量,从而实现水肥配比。该系统采用遗传算法优化的模糊PID模型作为控制策略来实现精量配比控制,进一步完善了传统PID的控制性能。实验结果表明:该系统成功实现了水肥精量配比,有效地提高了灌溉精度,具有一定的推广性和应用价值。

Design of Water and Fertilizer Precision Ratio Irrigation System

Precise control of ratio of water and fertilizer in agricultural irrigation can well promote crop's growth and greatly improve the utilization rate of fertilizer.This paper designs a water and fertilizer precision ratio irrigation system which applies the method of mixed water and fertilizer can regulate the flow of water and fertilizer by pump which is controlled by DC speed governor so as to realize the ratio of water and fertilizer.Control system applies the fuzzy PID model optimized by genetic algorithm to achieve the precision ratio control of water and fertilizer, which improve the traditional PID performance further.The ultimate experimental results show that the system can effectively improve the irrigation accuracy and successfully realize the precise ratio irrigation of water and fertilizer, which has certain popularization and application value.