CAJ | 학술논문

为解决温室系统由于非线性、大时滞和强耦合等特点引起的关键因子难以控制和效率低下的问题，研究了前馈补偿解耦算法。通过该算法实现了温室系统温度和湿度二维变量系统的解耦，并在MatLab 仿真模型中验证了该算法的实用性和高效性。利用MatLab GUI （ graphical user interface ）强大的数据计算能力，设计了上位机控制界面，克服了常规的工业控制器难以编写复杂算法的缺点；再结合PLC执行稳定的优点，设计了 PID 解耦控制器。实践验证表明：该解耦控制器克服了单一温度和湿度控制的缺点，提高了系统的整体工作效率，保障了关键生长因子控制的稳定。
위해결온실계통유우비선성、대시체화강우합등특점인기적관건인자난이공제화효솔저하적문제，연구료전궤보상해우산법。통과해산법실현료온실계통온도화습도이유변량계통적해우，병재MatLab 방진모형중험증료해산법적실용성화고효성。이용MatLab GUI （ graphical user interface ）강대적수거계산능력，설계료상위궤공제계면，극복료상규적공업공제기난이편사복잡산법적결점；재결합PLC집행은정적우점，설계료 PID 해우공제기。실천험증표명：해해우공제기극복료단일온도화습도공제적결점，제고료계통적정체공작효솔，보장료관건생장인자공제적은정。
The feed forward compensation algorithm based on the greenhouse has been studied in this paper with the pur-pose resolving the problem that the key factors are difficult and inefficient to control because of its nonlinear, time-delay and decoupling characteristics.According to this algorithm, the two dimensional inputs of temperature and humidity have been decoupled and simulated in the Matlab with the results that the algorithm has a good quality of practice and effi-ciency.Based on the theoretical results, the PID decoupling controller and display interface have been designed.Several typical greenhouse examples are employed to demonstrate effectiveness and simplicity of this design controller ensuring stability of the key factors in control processes.