摘要:实际的工业过程控制中，对于特定装置的水位，温度，压力和其他一些变量常常需要保持一定的值，或者按照一定的规律变化，以满足生产要求。控制器是根据控制原理来对整个系统进行偏差调节，从而使被控对象的实际值与要求的期望值保持一致。PID控制器是一个在工业控制应用中常见的一种反馈回路部件。在其他控制规律使得系统存在稳态误差的情况下，PID反馈回路可以运用整定方法通过对参数的整定使系统保持稳定，并使各项性能指标改善。

　控制器的参数整定是控制系统设计的核心内容。本设计主要通过水箱模型，要求对常用控制器（例如PID）参数的整定方法进行研究，利用Matlab工具对控制器参数进行调整并对控制系统的性能影响情况进行仿真比较。

关键词 水箱模型；PID控制器；MATLAB仿真；参数整定

Abstract:In the progress of production, in order to meet the requirement of production, the temperature, pressure, flow level and other process variables often require to maintain a certain value, or to change according to certain rules. The controller is based on the control principle of the whole control system deviation of regulation, so that the actual value of the controlled variable can be in agreement with the predetermined value process requirements. And the PID controller is a common feedback loop member in the industrial control applications. In the case of other control method causes the system to steady-state error, a PID feedback loop can make use of the tuning method by deserting the parameter setting system to maintain stability and the improvement of the performance indicators.Controller parameter tuning is the core content of the control system design. This design mainly through the tank model requires common controller (such as PID) parameter tuning method, the controller parameters using Matlab tools impact on the performance of the control system simulation comparison.

Keywords  tank model  PID controller  Matlab simulation  Parameter tuning