查询词典 controller general

The problem of PI controller design for the multi-input and multi-output system is transformed to that of static output feedback controller design via the new state variable. As to the problem of the static output feedback, a new LMI-based sufficient condition of the controller is presented in this thesis. We can gain the multivariable PI controllers just solving one LMI inequality. The numerical example is provided to illustrate the proposed design approach. 3.The H_∞ robust control is able to solve the multivariable problem, also the control problem characteristic of the modeling error, parameters uncertainties and unknown perturbation, Its application research in the power electronics is beginning now. Considering the characteristics of the PWM DC-DC converters, a multivariable PI controllers which is based on H_∞ Performance Index is designed.

通过构造新的状态变量，可以将多输入多输出系统的PI控制器设计问题转化为静态输出反馈控制问题，利用后者的成熟理论来设计控制器；本文在问题转化后采用更为简便的算法，只需通过求解一个LMI不等式，就能求取基于H_∞性能指标的多变量PI控制器参数，实例验证了算法的有效性。3.H_∞鲁棒控制具有处理多变量问题的能力，可解决具有建模误差、参数不确定和干扰未知系统的控制问题；它在电力电子学中的应用研究刚刚开始。

Based on analysing the respective characteristics of regular PID controller in trational control theory and fuzzy logical controller in intelligent control theory, the idea and technique of expert system is introduced to develop a novel kind of hybrid intelligent controller. It can coordinate two kinds of control algorithms and tune the control parameters on-line for different working zones of the controlled process.(3) The hybrid knowledge expression model, which combines discrete state space model, fuzzy relational model and rule base model, is proposed based on analysing the characteristics of all kinds of knowledge expression models. The knowledge of the controlled process in different aspects can be expressed resonably by it. Based on the model mentioned above, the related optimization strategy for complex system is developed.

本文的主要贡献体现在：（1）以炼油厂的催化裂化装置和钢铁联合企业的大型焦炉装置两个典型的复杂工业过程为例，分析了工业大系统的许多不易控制的特性，并归纳了其中的几个典型特征；（2）针对经典控制理论中的常规PID调节器和智能控制技术中的模糊逻辑控制器各自的特点，通过引入专家系统的思想和方法，开发了一类混合式专家控制器，它同时具备在线协调两种不同控制规律和自动学习控制规则的能力；（3）通过分析各种知识表达模型的特点，提出了一类包括离散状态空间模型、模糊关系模型和规则基模型在内的混合知识表达模型，它能对过程知识在各个不同侧面给予合理的描述。

In order to reduce the periodic current tracking error of the deadbeat control when compensating abruptly changing nonlinear load current, a repetitive controller is plugged into the deadbeat controller. Also, the repetitive controller can alleviate the parametric dependency of the deadbeat control and eliminate the effects on compensation performance caused by the uncertainties in the system.

另外，为了降低无差拍控制对系统参数的依赖型和系统中存在的不确定性对补偿性能的影响以及减小在补偿电流变化剧烈的非线性负载电流过程中存在的周期性的局部跟踪误差，本文在无差拍控制器的基础上，又提出了基于无差拍和重复控制的复合电流控制器。

The controller uses the data write buffer to reduce the data access waiting time, and employs the two ways of duo channels instruction pre-fetch buffer to decrease the fetching instruction waiting time and increase the instruction pre-fetch buffer hit rate. Meanwhile, to reduce the waiting time aroused by page miss of SDRAM, a four ways of on chip stack memory is introduced. Compared with traditional controller through experiments the novel SDRAM controller gets a high reduction up to 63% in access waiting time and 64% in page miss.

该控制器采用数据写缓存方式降低了数据在存取内存时的等待时间；并引入了两组双通道预取指令缓冲器，每组双通道都用以减少取指令时的等待时间，采用两组的结构是为了增加指令预取的命中率；同时还使用了四路组关联的片上堆栈存储器来降低SDRAM的页失效频率，从而降低了因页失效而需要等待的时钟周期。

To ontrol the listed company\'s information through agent-internal controller is one of the measures that ultimate controller control the listed companies. Specifically, accouting information is one of the important information in listed company, so the preannouncement characeristics are branded in the ultimate controller\' to some extent.

终极控制人对上市公司控制的方式之一，就是经过他们的代理人——内部控制人实现对信息的控制，而会计信息又是信息的重要一环，因此，从某种角度来说，业绩预告的特征打上了终极控制人的烙印。

Fuzzy controller base on variable universe is a kind of self-reacting controller,With a proper expandable and shrinkable factor,its universe can be changed according to the change of input error. With fuzzy rules increased greatly, both dynamic performance indices and stable performance indices are improved, compared with common fuzzy logic controller.

变论域模糊控制器是一种高精度的自适应模糊控制器，通过伸缩因子收缩论域，使实际的控制规则大幅度增加，无论在动态性能方面，还是在稳态性能方面，相对于一般模糊控制器均获得了较大的提高。

The paper further realizes a hardware accelerate boundary-scan controller to improve the performance of the remote experiment system. The controller can realize the process of "configuration" and "verify"automatically without the control of CPU. The controllers operation in the remote experiment system can reach the expected goal. By performance analysis, we conclude that hardware accelerate boundary-scan controller is significant faster than that realized with software.

从提升远程实验系统性能出发，本文进一步设计实现了一个硬件加速的边界扫描控制器，该控制器能够完成对目标FPGA的"配置"和"验证"，执行过程中不需要CPU干预，在整个远程实验系统联合调试的过程中，运行完全正常，达到了预期目标，并且通过性能分析证明，硬件加速的边界扫描控制器相比于软件实现，速度有显著提升。

Based on history control data,and defined new rectifiable norm parameter on control parameter,a fuzzy increment controller is designed.Compared with conventional fuzzy controller,this controller can synthetically reflect the history control's affection on the current control effect.

但传统的模糊控制器的控制规则一般由被控量的偏差、偏差变化率和控制量三个语言变量构成[7-8]，与PID控制一样均属于"事后控制型"，对于大滞后对象，控制效果并不十分理想[9-11]。

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In order to overcome the shortcoming of PI controller in harmonics control, the repetitive control and PI control are combined and used in the closed-loop control of TSMC; The problem of conventional repetitive controller is pointed out and a modified repetitive control method is proposed: To avoid the influence of no-periodical disturbance on the control action of repetitive controller, the error caused by no-periodical disturbance is identified and discarded.

针对PI控制器对谐波控制的不足，将重复控制技术与PI控制相结合，应用于TSMC逆变级的闭环控制中；在此基础上提出了重复控制器的改进方案：对由非周期性扰动引起的误差不进行记忆，以避免其对重复控制器的控制动作产生干扰。

We got alerted a couple of times while we were down south that HETs were on the way to bring us back up north because things were going to go hot again, but it was just rumors.

南下的途中我们不只一次得到警告说重型装备运输车将拉着我们重新北上，因为局势正在变得重新紧张起来，但这只是谣传。

It's the one where they find the ghost in the salt mine.

这一集是演他们在盐矿找到鬼