PID控制器参数快速整定的新方法

本文分析了影响控制器参数整定的几个基本问题（控制目标、优化准则和被控过程的特性），提出了精确地确定被控过程模型参数的方法。通过计算机仿真，系统地提出了可适用于多容过程的ＰＩＤ控制器参数快速整定新方法。     

改善性能的PID控制器校正方法

提出了一种对于宽级线性自调节过程实现高性能的PID控制器设计方法,对于不同的动态过程,包括那些具有低阶和高阶、小的和大的延迟时间以及单调的和振荡的响应,均能获得满意的动态品质.研究的方法是基于一个二阶加延迟时间模型化技术和通过运用根轨迹图的一种闭环极点分布策略,此模型被证明对各种过程是有效的,并且在诸如振荡过程的频率响应中能够产生峰值.按照阻尼比和模型的延迟时间选择不同的闭环极点,并且为计算提供了简单的公式.提供的仿真结果表明,所设计的控制器在处理具有不同特性的过程中获得了理想的结果.     

基于混沌蚂蚁群算法的PID控制器的参数整定

将蚂蚁混沌动力学、群组织和优化机制进行巧妙的结合，本文给出了一种基于群智能理论的新的优化方法，即混沌蚂蚁群算法CAS。同时采用该方法对PID控制器的参数进行了整定，它以误差积分型性能指标为目标函数、以设计参数的取值范围及最小增益和相位裕度为约束条件，建立了优化数学模型，数值结果显示采用混沌蚂蚁群算法的整定性能要优于采用遗传算法整定的性能。同时本文的方法由于不需要采用编码过程，因此比采用遗传算法的辨识方法要简练。     

PID controller tuning for integrating processes

Minimizing the integral squared error (ISE) criterion to get the optimal controller parameters results in a PD controller for integrating processes. The PD controller gives good servo response but fails to reject the load disturbances. In this paper, it is shown that satisfactory closed loop performances for a class of integrating processes are obtained if the ISE criterion is minimized with the constraint that the slope of the Nyquist curve has a specified value at the gain crossover frequency. Guidelines are provided for selecting the gain crossover frequency and the slope of the Nyquist curve. The proposed method is compared with some of the existing methods to control integrating plant transfer functions and in the examples taken it always gave better results for the load disturbance rejection whilst maintaining satisfactory setpoint response. For ease of use, analytical expressions correlating the controller parameters to plant model parameters are also given.     

一种模糊规范化PID控制器混沌优化设计

基于混沌变量，提出了一种FNPID参数混沌优化设计。文中将混沌动力学特性与退火策略结合起来实现混沌优化搜索，体现出具有更强的FNPID参数全局最优值的搜索能力。仿真实验表明能有效地实现FNPID控制器参数优化，控制结果具有稳定、无振荡、无超调、响应快、调节时间短的优点，算法结构简单，编程容易。     

An analytical method for PID controller tuning with specified gain and phase margins for integral plus time delay processes

In this paper, an analytical method is proposed for proportional-integral/proportional-derivative/proportional-integral-derivative (PI/PD/PID) controller tuning with specified gain and phase margins (GPMs) for integral plus time delay (IPTD) processes. Explicit formulas are also obtained for estimating the GPMs resulting from given PI/PD/PID controllers. The proposed method indicates a general form of the PID parameters and unifies a large number of existing rules as PI/PD/PID controller tuning with various GPM specifications. The GPMs realized by existing PID tuning rules are computed and documented as a reference for control engineers to tune the PID controllers.     

基于模糊神经网络和遗传算法的仿人智能PID控制器设计

阐述一种新型的模糊神经网络加遗传算法的智能PID控制器     

Improved automatic tuning of PID controller for stable processes

This paper presents an improved automatic tuning method for stable processes using a modified relay in the presence of static load disturbances and measurement noise. The modified relay consists of a standard relay in series with a PI controller of unity proportional gain. The integral time constant of the PI controller of the modified relay is chosen so as to ensure a minimum loop phase margin of 30. A limit cycle is then obtained using the modified relay. Hereafter, the PID controller is designed using the limit cycle output data. The derivative time constant is obtained by maintaining the above mentioned loop phase margin. Minimizing the distance of Nyquist curve of the loop transfer function from the imaginary axis of the complex plane gives the proportional gain. The integral time constant of the PID controller is set equal to the integral time constant of the PI controller of the modified relay. The effectiveness of the proposed technique is verified by simulation results.     

基于自适应在线遗传算法整定的PID控制

提出一种基于自适应在线遗传算法髌定的PID控制，同时进行了仿真试验，结果表明该算法有效地提高了控制效果，能获得优良的控制参数。     

自校正PID控制器在疲劳试验机中的应用研究

针对常规ＰＩＤ控制器及自校正零极点配置的优缺点，提出了一种新的自校正零极点配置ＰＩＤ控制器，该控制器能根据参考模型实时地调节ＰＩＤ参数且运算量较小。仿真结果证明，该控制器具有良好的控制性能及自适应能力     

均匀控制器的设计及整定

本文根据优化方法对均匀控制器进行了设计，给出了均匀液位控制器的一种整定方法，简述了非线性控制及对不规则容器的校正，从而实现可以最大限度地使用容器的波动能力并由此使整个装置趋于平稳。     

PID tuning rules for SOPDT systems: review and some new results

PID controllers are widely used in industries and so many tuning rules have been proposed over the past 50 years that users are often lost in the jungle of tuning formulas. Moreover, unlike PI control, different control laws and structures of implementation further complicate the use of the PID controller. In this work, five different tuning rules are taken for study to control second-order plus dead time systems with wide ranges of damping coefficients and dead time to time constant ratios (D/tau). Four of them are based on IMC design with different types of approximations on dead time and the other on desired closed-loop specifications (i.e., specified forward transfer function). The method of handling dead time in the IMC type of design is important especially for systems with large D/tau ratios. A systematic approach was followed to evaluate the performance of controllers. The regions of applicability of suitable tuning rules are highlighted and recommendations are also given. It turns out that IMC designed with the Maclaurin series expansion type PID is a better choice for both set point and load changes for systems with D/tau greater than 1. For systems with D/tau less than 1, the desired closed-loop specification approach is favored.     

气候环境实验室地面结冰云雾模拟控制系统设计

飞机结冰会引起飞机气动特性、动力系统性能改变,甚至造成飞行事故。地面结冰云雾模拟设施作为一种模拟飞机飞行结冰条件的重要设备,常用于飞机防除冰系统功能验证。针对气候环境实验室结冰云雾试验条件需要,在对地面结冰云雾模拟系统进行研究的基础上,对适用于气候环境实验室的结冰云雾模拟系统进行了设计。对系统关键设计技术、系统功能及组成进行了分析,并对控制系统方案进行了详细阐述。试验表明,控制系统人机界面友好,运行可靠,能够满足液态水含量、雾滴直径参数的精确调节,产生符合试验所需的结冰环境。     

基于PID控制的主悬架设计及其优化

利用经典的PID控制器针对1/4悬架进行主动悬架的设计.考虑到悬架多个性能指标的协调,本文利用遗传算法进行多个目标的优化及参数整定.经过优化,悬架的各个性能指标都有非常明显的降低,舒适性、安全性以及操纵稳定性都得到了非常明显的改善.     

采用遗传PID整定的电液伺服系统仿真研究

建立了电液伺服系统数学模型,提出了基于遗传算法的电液伺服系统PID参数整定方法,并利用Matlab编程软件进行仿真,仿真结果表明,基于遗传PID整定的电液伺服系统具有良好的稳定性和较强的鲁棒性,达到了预期的控制效果,表现出了优越的控制性能.     

A novel interval type-2 fractional order fuzzy PID controller: Design,performance evaluation,and its optimal time domain tuning

In this paper, a novel concept of an interval type-2 fractional order fuzzy PID (IT2FO-FPID) controller, which requires fractional order integrator and fractional order differentiator, is proposed. The incorporation of Takagi-Sugeno-Kang (TSK) type interval type-2 fuzzy logic controller (IT2FLC) with fractional controller of PID-type is investigated for time response measure due to both unit step response and unit load disturbance. The resulting IT2FO-FPID controller is examined on different delayed linear and nonlinear benchmark plants followed by robustness analysis. In order to design this controller, fractional order integrator-differentiator operators are considered as design variables including input-output scaling factors. A new hybridized algorithm named as artificial bee colony-genetic algorithm (ABC-GA) is used to optimize the parameters of the controller while minimizing weighted sum of integral of time absolute error (ITAE) and integral of square of control output (ISCO). To assess the comparative performance of the IT2FO-FPID, authors compared it against existing controllers, i.e., interval type-2 fuzzy PID (IT2-FPID), type-1 fractional order fuzzy PID (T1FO-FPID), type-1 fuzzy PID (T1-FPID), and conventional PID controllers. Furthermore, to show the effectiveness of the proposed controller, the perturbed processes along with the larger dead time are tested. Moreover, the proposed controllers are also implemented on multi input multi output (MIMO), coupled, and highly complex nonlinear two-link robot manipulator system in presence of un-modeled dynamics. Finally, the simulation results explicitly indicate that the performance of the proposed IT2FO-FPID controller is superior to its conventional counterparts in most of the cases.     

基于遗传算法的自动平衡式显示仪表的PID控制器设计

在介绍数字自动平衡式显示仪表工作原理的基础上,建立了系统的数学模型。根据系统动态性能指标的要求,基于遗传算法设计了一种PID控制器,并利用MATLAB语言对数学模型进行仿真。仿真结果表明,基于遗传算法PID控制的自动平衡式数字式显示仪表具有无超调量、调节时间短、PID参数整定简单等优点,能满足实际应用对自动平衡式数字式显示仪表的动态性能要求。     

A GA-based parameters tuning method for an ADRC controller of ISP for aerial remote sensing applications

This paper presents a parameters tuning method based on the genetic algorithm (GA) for an active disturbance rejection control (ADRC) of a three-axis inertially stabilized platform (ISP) with imaging sensors. To improve the stabilization accuracy and robustness of an aerial ISP under multi-source disturbances environment, an ADRC control scheme is first proposed. Then, to accurately identify and tune the parameters in the ADRC controller, a GA-based parameters tuning method is proposed. In this way, the performance of the ADRC is superior to the empirical method. To validate the proposed method, the simulations and experiments are carried out. The results show that the proposed ADRC with GA-based parameters tuning method has significant disturbance rejection ability which can improve the stabilization accuracy obviously. Compared with the ADRC with empirically tuning method, the stabilization error (RMS) under movable base is decreased up to 50.09%.     

无氧铜杆炉温的自校正PID控制

本文采用自校正ＰＩＤ控制方法,代替传统ＰＩＤ控制器。通过在线辨识被控对象,采用二次型性能准则优化ＰＩＤ参数。该方案在无氧铜杆炉控制系统投用,使控制性能有较大的提高,能满足生产过程的要求。     

Tuning of an optimal fuzzy PID controller with stochastic algorithms for networked control systems with random time delay

An optimal PID and an optimal fuzzy PID have been tuned by minimizing the Integral of Time multiplied Absolute Error (ITAE) and squared controller output for a networked control system (NCS). The tuning is attempted for a higher order and a time delay system using two stochastic algorithms viz. the Genetic Algorithm (GA) and two variants of Particle Swarm Optimization (PSO) and the closed loop performances are compared. The paper shows that random variation in network delay can be handled efficiently with fuzzy logic based PID controllers over conventional PID controllers.