Grounded on that model , a piecewise pid controller with forward feedback is designed and simulated by matlab , and the performance is better compared with pid control 在建立的数学模型基础上,设计了加前馈加分段pid控制器,获得的控制效果优于pid控制。
So far , there are many kinds of methods in the tuning of pid parameter . these methods have brought the energy for the research of the tuning of pid parameter 迄今为止,各种整定pid控制器参数整定方法层出不穷,给pid控制器参数整定的研究带来了活力与契机。
This dissertation studies on the problem of the pid parameters optimal adjustment according to the character of thermal processes . the main content include : 1 论文根据热工过程的特点，对pid控制器参数的优化整定问题进行了研究，其主要内容及进展为： 1
Firstly , this paper analyzes the difficulties of the sugar - refinery boiler control and the reason of the unsatisfactory effect by introducing the traditional pid controller 首先，论证了糖厂锅炉控制的难点，以及采用常规pid控制器难以获得良好控制效果的原因。
In chapter 3 the torque ripple minimization algorithm based on torque observation and instant torque control is studied as well as the fuzzy pid controller does 在分析两种转矩脉动抑制方法局限性基础上，研究了基于转矩观测的瞬时转矩脉动抑制算法以及转速环的模糊pid控制器设计。
A hardware design project concerning fuzzy in temperature control system based on dsp was introduced , emphasizing the importance of the software method applied to the fuzzy - pid controller 摘要介绍了基于dsp的恒温模糊控制系统的硬件设计方案，着重介绍模糊pid控制器的软件实现方法。
But pid controller has its limitation , where its linear combination brings the contradiction in speediness and overshoot . in addition , reference input usually is non - differential 但是，经典pid控制器采用“线性组合”形式产生的控制量，常引起快速性和超调量及准确性之间的矛盾。
The electromechanical sensing technology was applied to the system based on depth standard , and the pid controller was used and the system gave real - time control depth in milled pavement 应用机电液系统的传感技术，基于预设的作业基准，控制系统采用pid控制器，即时控制铣削路面的厚度。
Simulation results show that the performance of fcmac controller is better than that of pid controller in control accuracy and robusticity while sea current is confined within some certain amount 仿真结果表明：在海流流速不大的情况下， fcmac控制器在控制精度和鲁棒性等方面都优于pid控制器。
The pid controller based on ziegler - nichols parameters - adjust experiential formula and fuzzy controller is designed according to the characteristic of electro - hydraulic servo control system and research object 设计了两类控制器，即基于ziegler - nichols参数整定经验公式的pid控制器和模糊控制器。
