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智能控制吸收传统的PID控制的优势从而进一步发展成智能PID控制,自适应性的采用是其最大特色。以锅炉内胆水温作为被控对象,基于学生在实验室过程控制中所遇到的难题,来讨论关于锅炉内胆水温的控制方案,使得系统在安全稳定运行的前提下能够更高效率地工作。在控制过程中,由于受到的扰动不同,所需采取的控制方案也不同,需要根据大小和干扰程度选择控制方案。锅炉水温度具有非线性、时变性,这些特性的大滞后和不对称,一般方法很难达到理想的控制效果。所以采用单回路控制与串级控制两种方案进行比较,通过反复试验与调节,使系统达到一定的设计精度和要求,从而体现智能PID控制锅炉内胆水温的重要意义及研究价值。
Intelligent control to absorb the advantages of traditional PID control and further development of intelligent PID control, adaptive use is its most prominent feature. Based on the problem encountered by the students in the process control of the laboratory, the boiler water temperature was taken as the controlled object to discuss the control scheme of the water temperature inside the boiler, so that the system could work more efficiently and safely under the premise of safe and stable operation . In the control process, due to the different disturbance, the control scheme needed to be taken is also different, the control scheme needs to be selected according to the size and the degree of interference. Boiler water temperature with nonlinear, time-varying, large lag and asymmetry of these characteristics, the general method is difficult to achieve the desired control effect. Therefore, single-loop control and cascade control schemes are compared. Through repeated tests and adjustments, the system achieves certain design accuracy and requirements, which reflects the importance and research value of intelligent PID-controlled internal boiler water temperature.