PID+控制算法的研究

Research of PID+ control algorithm

辨识一个控制系统的模型比较复杂,PID控制不需要掌握系统的精确模型,就可以使系统稳定的工作,因此PID控制得到广泛应用。通过对常规PID控制算法的介绍,引出了PID+控制算法。针对数字控制系统应用需求,以及数字系统在很多领域已经替代模拟系统的情况下,给出了PID+数字化的方法,最后介绍了数字PID+参数整定的过程。PID+控制是PID控制的改进,PID+控制器能够完成任何一种PID控制器所能完成的任务。

The model of control system is difficult to recognize, and the system is worked perfectly by control of PID when model is not acquired exactly, so control of PIT） is widely used. Through the introduction of normal PID control algorithm, PID＋ is proposed, and the theory of PID＋ is presented. In order to deal with need of digital control system, and analog system is instead of digital system, the method of digital process is presented, and then the adjusting of parameter of PID＋ is introduced. PID＋ control theory is improved from PID. if the task could be completed by PID controller, also it is completed by PID＋ controller.