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在分析隧道式微波加热系统控制模型的基础上,研究了对各节炉腔微波磁控管功率控制的控制率,从理论上分析了隧道式加热系统的特殊性以及单输入单输出模糊自整定PID控制算法在本系统中的限制。根据隧道式加热系统的强耦合性,在模糊自整定PID控制算法的基础上引入了模糊解耦控制算法从而减弱消除系统变量间的耦合,使系统稳定性增加。并在已有的硬件平台上对控制软件的设计进行了讨论,重点考虑了软件的控制效果与控制效率。
Based on the analysis of the control model of tunnel microwave heating system, the control rate of microwave magnetron power control in each furnace cavity was studied. The particularity of tunnel heating system and the fuzzy self-tuning of single-input and single-output PID control algorithm in the system limits. According to the strong coupling of tunnel heating system, a fuzzy decoupling control algorithm is introduced on the basis of fuzzy self-tuning PID control algorithm to weaken the coupling between system variables and increase the system stability. In the existing hardware platform, the design of control software is discussed, and the control effect and control efficiency of the software are mainly considered.