模糊PID玉米免耕机排种施肥控制方法研究  

Study on Control Method of Seed Metering and Fertilization for Corn No-tillage Seeder

作　　者：张红娟 窦新宇 Zhang Hongjuan;Dou Xinyu(College of Intelligence and Information Engineering,Tangshan University,Tangshan 063000,China)

机构地区：[1]唐山学院智能与信息工程学院,河北唐山063000

出　　处：《农机化研究》2025年第1期178-184,共7页Journal of Agricultural Mechanization Research

基　　金：河北省高等学校科学技术研究项目(ZC2022048);“十三五”国家重大科技专项子课题(2017ZX05009-003)。

摘　　要：为了实现免耕机播种量和施肥量的精确控制,基于模糊PID控制,设计了控制系统。首先,建立排种量模型,以排种轴转速为控制量;其次,建立施肥量控制模型,分析排肥轴转速、排肥轴长度和免耕机前进速度对于排肥量误差的影响,选择排肥轴转速为控制量;再次,采用模糊PID控制的方法,对驱动电机进行调速,进而实现对排肥轴和排种轴转速的控制,完成排种量和排肥量的调整;最后,对系统进行测试。测试结果表明:电机转速从0调整到50 r/min的响应时间为0.8 s,施肥量变异系数分布区间为[2.6,4.1]。In order to achieving precise control of sowing amount and fertilization amount for no-tillage seeder,this system was designed based on fuzzy PID control.Firstly,seed output model was found,while the seed metering shaft speed was taken as control parameter.Secondly,control model of fertilization amount was found,after effects of rotation speed of fertilizer discharge shaft,length of fertilizer discharge shaft and speed of no-tillage seeder on the fertilizer error,and then,rotation speed of fertilizer discharge shaft was taken as control parameter.Speed regulation of drive motor was achieved based on fuzzy PID control,and then,the rotation speed of fertilizer discharge shaft and seed discharge shaft were controlled to adjust sowing amount and fertilization amount.The system tests were taken,response time is 0.8 s,as motor speed adjusted from 0 to 50 r/min.Coefficient of variation for fertilization ranged was[2.6,4.1].

关 键 词：模糊PID控制 播种量模型 施肥量模型 玉米 

分 类 号：S223.26[农业科学—农业机械化工程]