查询词典 cascade control

Invariance control for nonlinear cascade systems can provide theoretical methods and practical support.

非线性级联系统的不变控制在理论上的研究正在为控制理论与工程应用提供理论和方法上的借鉴与支持。

This thesis mainly focuses on the control strategy of a new cascade multilevel converter with single DC source.

本文对一种新型单电源级联多电平拓扑的控制策略进行了研究。

At the last of the paper, the hardware and corresponding software design of the control system of SAPF based on the cascade H-bridge converter are discussed.

在本文的最后，介绍了基于级联H桥变流器的有源电力滤波器控制系统的硬件实现和相应的控制软件。

In this paper, a shunt APF topology with cascade multilevel converter based on Carrier Phase Shifted PWM is presented. The systematic analysis of the harmonic and reactive power detection, AC side and DC side control, system parameter design and so on is done. The simulation study is carried out.imulation shows the APF system is of fast dynamic response and good compensation. Theory analysis and experimental system is feasible..

因此，本文将二者结合起来，提出了基于载波相移PWM技术的级联型多电平变流器并联APF系统的电路拓扑结构，并在谐波及无功检测、交直流控制策略和系统参数设计等方面进行了系统的分析，在此基础上进行了仿真研究。

The cascade of FIR digital filter and PPSV is used to control chaos and hyperchaos in nonlinear continuous system.

利用数字FIR滤波器和正比于系统变量的脉冲反馈法的级联控制非线性连续系统中的混沌和超混沌。

Water level and flow cascade pi feedback control method is to deal with unpredictable disturbance.

采用流量控制器降低下游方向渠池间的耦合影响。

The extraction of.watermark used the method of cascade extraction and Variance control, improved the accuracy and rate of extraction.

试验结果表明，算法不仅具有良好的不可见性，并且对常见的图像处置操纵具有较好的鲁棒性。

These main jobs completed are included:The cascade feedforward-feedback control system of the once-through stream generator is advised.

本文完成的主要工作有：设计直流蒸汽发生器的串级前馈—反馈控制系统。

The method of finite element discrete and optimal parameter back analysis is adopted.(3) Concentrated on the question of high external water pressure of the deep-lying tunnel, the basic theory and method calculating external water pressure are systematically studied.(4) Based on Jinping cascade 2 hydropower station, numerical simulation rain infiltration of seepage field under different drainage pattern and grouting pattern are studied, also, the high external water pressure is analyzed and studied and some seepage control measures are put forward.

2采用有限元离散—优化法进行参数的反演分析；(3)针对深埋隧洞的高外水压力问题，进一步分析和研究了衬砌水荷载及外水压力的作用机理和计算方法；(4)以锦屏二级水电站深埋长引水隧洞作为本文的主要研究对象，采用考虑降雨入渗渗流场分析的方法对排水方案和灌浆封堵方案不同情况下的渗流场的水头分布进行了数值模拟，并对其外水压力进行了分析和研究，提出了渗流控制的具体措施。

For the single-loop, we can relax the control intensity to get better stability; the cascade loop, deputy circuit the need for better self-stability of the rapid response and in order to follow the main circuit changes.

对于单回路而言，可以放宽控制强度得到较好的稳定性；而串级回路中，副回路需要较好的快速响应及自我稳定性才能跟随主回路的变化。

Do you know, i need you to come back

你知道吗，我需要你回来

Yang yinshu、Wang xiangsheng、Li decang,The first discovery of haemaphysalis conicinna.

1〕 杨银书，王祥生，李德昌。安徽省首次发现嗜群血蜱。