• 主题
高级搜索  >
历史搜索 清空历史
首页> 中文期刊> 《农业工程学报》 >玉米精量排种器电驱PID控制系统设计与性能评价

玉米精量排种器电驱PID控制系统设计与性能评价

         
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

本文研究了一种基于PID的排种器电驱控制系统,取消了播种机采用地轮和链条驱动的方式,提高了播种机的播种质量和作业速度.采用PID算法控制排种盘转速,在目标转速与当前转速差异较大时,加入PID积分分离算法,以减少转速的超调量.通过整定后的PID参数为:Kp=16、Ki=0.05、Kd=36,在其排种盘转速范围为0~24r/min时,响应时间、超调量、稳态误差分别为0.4秒,1.56%和0.75%.试验结果表明,在12km/h的高速播种作业条件下,采用该电驱控制系统的排种器排种单粒率仍然可达到98.4%,其重播率和漏播率小于1%.采用本文研究的基于PID算法的排种控制系统可以获得良好的排种质量和更高的排种速度,使排种器更适宜高速精量播种.%A proportional-integral-derivative (PID) electronic control system for seed meters was developed to improve the planting quality and operation efficiency of conventional planters with ground wheel and chain driven system. A PID algorithm was used for controlling seed plate rotation speed. In addition, the PID controller incorporated integral separation of the integral term to increase the response time and reduce the occurrence of overshoot when the set point was far away from the current rotation rate. The final tuned PID parameter values were Kp=16, Ki=0.05, and Kd=36. The response time, overshoot, and steady error for a seed plate rotation speed step response from 0 to 24 r/min were 0.4 s, 1.56%, and 0.75%, respectively. Experiment results showed that the Singulation index (SI) of seed meter could receive to 98.4%, and the Multiple index (UI) and Miss index (MI) were not more than 1% even at the highest planting speed of 12 km/h, which indicated that the seed meter with the developed control system and tuned PID parameters could obtain better planting quality and higher planting speed.

著录项

相似文献

  • 中文文献
  • 外文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号