反馈控制系统

The feedback linearization,system lacunarity and optimization control of the nonlinear control system are discussed.

对非线性控制系统设计理论上的难点问题进行了探讨，就非线性控制系统的反馈线性化、系统间隙度和非线性系统的优化控制进行了分析。

And a corresponding nonlinear robust controller is finally constructed. nonlinear systems ; robust control ; feedback inearization ; linear fractional transformation

本文把非线性系统鲁棒控制的μ方法应用到一类可状态反馈线性化的仿射非线性系统鲁棒控制中，提出了非线性鲁棒控制系统的

Combine to emphasize the software design that introduced thought and design methods of the direct current servo control system, it included the design of the main procedure, give the design that settle the procedure, modify the design of the procedure and start the design of the procedure to break off the design of the procedure with the T0, passing to the fixed amount with comparison and PID that feedback measures control procedure, output the certain electric voltage, realize system opposite angles degree of accurate follow.

本文介绍了以 MCS—51单片机为控制核心的直流伺服控制系统的工作原理，并着重介绍了直流伺服控制系统的软件设计的思想及设计方法，它包括了主程序的设计、给定程序的设计、修改程序的设计、启动程序的设计和T0中断程序的设计，通过给定量和反馈量的比较及PID控制程序，输出一定的电压，来实现系统对角度的准确跟踪。

Analysis of application effect proves that strip flatness error can be well controlled in the scope of 0～3 I in stable rolling condition and close loop feedback control method satisfies the need of high precision control for cold rolling strip flatness. cold rolling ; Clecim AFC system ; multivariable optimum control

本文对国内某厂引进的Clecim冷轧AFC系统的控制原理和控制特点作一介绍，并对实际的板形控制效果进行分析说明。1闭环反馈控制原理Clecim冷轧AFC系统的控制原理如图1所示，板形检测值与目标板形相比较得到板形误差分布，通过多变量优化控制求

In the chapter three, by using the comparison principle and frequency domain method of the discrete systems with time-delay, combining Rouche Theorem, sufficient criterions for the stabilization of the neutral type discrete control systems with multiple time-delay and the neutral type interval coefficient discrete control systems with multiple time-delay are obtained by choosing appropriate feedback controller.

在第三章，利用时滞离散系统的比较原理与时域法，结合复变函数理论中的路歇定理，通过选取适当的反馈控制律，得到了多组时滞中立型线性定常离散控制系统和多组时滞中立型区间系数线性定常离散控制系统的无条件镇定的充分性准则。

Welding control system comprises hardware and software, using C language welding program, and it reduces difficulty of control system exploitation. Scheduling control, sampling disposal of feedback signals and digital PI modulation are achieved through program control, and this controls veraciously welding process.

焊接控制系统由硬件和软件两部分组成，焊接程序采用C语言编写，降低了控制系统软件开发的难度，通过程序控制实现时序控制、反馈信号的采样处理及数字PI调节，对焊接过程进行准确的控制。

The input of the equipment can have 0-100% ungraduated continuous control.

设计先进的SCR可控硅调压控制系统，采用高精度的数字触发装置，准确的发出每一个SCR控制脉冲，设备的输入功率能作0～100%的无级连续控制，并有电压自动反馈系统和电流保护系统，保证主回路电压波动≤±1%。

Freescale16 design is partly based on SCM MC9S12DG128 as a system for the control processor, based on infrared sensors detect the road, through the processing and analysis of information, access to the track with black lines and gun feedback on the autonomous mobile trolley loop Feedback control; through the motor-driven and S12 to PWM control, making autonomous mobile trolley to the track in accordance with the regulations and to advance.

设计部分采用了Freescale16为单片机MC9S12DG128作为系统控制处理器，基于红外传感器检测道路信息，通过对信息的处理和分析，获取赛道黑线并结合测速反馈实现对自主移动小车的闭环反馈控制；还通过直流电机驱动和S12脉宽调制控制转向，使得自主移动小车能按照规定的轨迹前进和转向。

Finally, based on the studies above, the characteristics of pantograph/catenary are analyzed and the active pantograph is modeled. By using the linear quadratic optimal control law, the design objective is to minimize the performance index, which is a function of the state variables representing the pantographs dynamic characteristic and the active control force. The control system is designed considering the complete state feedback.

最后，在此基础上，分析了受电弓／接触网系统的工作特点，建立了受电弓主动控制系统的数学模型，利用线性二次型最优控制策略，以给定性能指标为最小值为设计目标，性能指标为表征受电弓动力学特性的状态变量和主动控制力的函数，考虑了完全状态反馈的情况，进行了控制系统的设计。

Firstly, the control of reentry phase and the model of RCS jets are presented. Then the flight control system is divided into two subsystems based on the time-scale separation principle. The fast states subsystem corresponds to the three body-axis angular rates, the slow states subsystem controls the angle-of-attack, sideslip angle and the rate of the bank angle about the velocity vector. Lastly, the proportional-plus-integral feedback is designed to increase the system robustness.

首先，分析了SRLV再入段的数学模型，并给出了反作用推力控制系统的控制模型；其次，将非线性动态逆方法与时标分离原则相结合，考虑飞行器姿态控制系统的外环角回路的慢变特性和内环角速度回路的快变特性，独立设计了两个回路的控制律；最后，为了增强系统的鲁棒性，分别在两个回路中引入了比例－积分反馈，有效地抑制了干扰力、力矩和非线性对消带来的逆误差。

On the other hand, the more important thing is because the urban housing is a kind of heterogeneity products.

另一方面，更重要的是由于城市住房是一种异质性产品。

Climate histogram is the fall that collects place measure calm value, cent serves as cross axle for a few equal interval, the area that the frequency that the value appears according to place is accumulated and becomes will be determined inside each interval, discharge the graph that rise with post, also be called histogram.

气候直方图是将所收集的降水量测定值，分为几个相等的区间作为横轴，并将各区间内所测定值依所出现的次数累积而成的面积，用柱子排起来的图形，也叫做柱状图。