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一、单回路调节系统及其整定 1.概述调节系统的整定是指调节系统的结构已经确定,调节系统中的检测和控制装置及调节对象等组成部件都已处在正常工作状态时,如何合理地、最佳地选择调节器的参数(δ,T_1及T_d),使包括调节器在内的调节设备的特性和调节对象的特性配合好,进而使调节系统处于最佳工况下运行,以得到最好的调节效果。调节器参数的整定仅仅是调节系统投运工作中的重要环节之一。这是因为,调节器参数只能在一定范围内起作用,如果调节对象的运行方式或调节系统的设计不合理,或者检出元件、变送器和调节阀等选型不妥,安装不当,或者调校得不好等,那么无论怎样去调整调节器的参数,仍然难以达到预定的调节质量要求。另一方面,即使以上所有各种条件都已具备,但如果调节器参数选择不合理,也同样不能取得令人满意的调节效果。
A single-loop regulation system and its tuning 1. Overview Tuning system tuning refers to the structure of the control system has been identified, the control system in the detection and control devices and regulatory components and other components have been in normal working conditions, how reasonable , The parameters (δ, T_1 and T_d) of the regulator are optimally selected so that the characteristics of the regulating device including the regulator and the characteristics of the regulating object cooperate so that the regulating system is operated at the optimum operating condition so that Get the best adjustment effect. The setting of the regulator parameters is only one of the important steps in regulating the operation of the system. This is because the regulator parameters can only work within a certain range, if the regulation of the operation of the object or adjustment of the system design is not reasonable, or check the components, transmitters and control valves, etc. inappropriate selection, improper installation, Or poorly tuned, then no matter how to adjust the parameters of the regulator, it is still difficult to achieve the desired regulatory quality requirements. On the other hand, even if all of the above conditions are met, satisfactory adjustment can not be achieved if the regulator parameters are not selected properly.