[关键词]
[摘要]
针对北方地区传统冬季供暖系统是一个非线性的系统且存在供暖反馈滞后的问题,引入一套新型控制系统。结合目前分户供暖现状,设计了一套基于改进PID的供暖阀门直流电机控制系统。通过遗传算法对电机控制系统的PID参数进行整定,得到在不同角度下的最优控制曲线并将其应用到实际系统中。同时利用远距离无线电(LoRa)建立用户插座与供暖阀门之间的信息传递,并通过485总线将二者温度、角度等信息发送给供热公司实现监测与控制。与传统控制方法相比,所提控制方法可以提高系统的工作性能与效率。
[Key word]
[Abstract]
Aiming at the problem that traditional winter heating system in northern China is a nonlinear system with heating feedback lag, a new control system is introduced. Combined with the current situation of household heating, a heating valve DC motor control system based on improved PID is designed. The PID parameters of the motor control system are adjusted by genetic algorithm, and the optimal control curves at different angles are obtained and applied to the actual system. Meanwhile, long range radio (LoRa) is used to establish the information transmission between the user socket and the heating valve, and the temperature, angle and other information are sent to the heating company through the 485 bus to realize monitoring and control. Compared with the traditional control method, the proposed control method can improve the working performance and efficiency of the system.
[中图分类号]
[基金项目]