Piezoceramics have been used successfully for many years in the field of vibration control , owning to its high forces into the range of kilo - newtons and short reaction times in the order of a few microseconds 压电材料由于其自身的压电效应和逆压电效应而被制作成压电传感器和压电驱动器来对结构的振动进行控制。
Finally , the experimental study of the reversible rectifier is done . the resultfof the experiment proves that both the theoretic analysis and the simulation results are correct 根据原理电路的理论设计制作了一套硬件电路,并对此电路进行了整流和逆变的实验研究,验证了电路的仿真和理论分析的正确性,为实际工程应用打下了一定基础。
The starting and accelerating performance of the locomotive is also analyzed the third part discussed the mode of the main circuit and the form of the inverter . the main circuit plan of the ac transmission system is also introduced here 论文第3章研究了逆变器的主电路形式和逆变器的配置方式,介绍了交流电传动系统的主电路方案。
The pre - jurassic basement of hefei basin was composed of thrusts . indosinian foreland thrusts in pre - jurassic bedrocks of the basin increase towards the tan - lu fault zone , indicating indosinian activity of the fault zone 合肥盆地在印支期的前侏罗纪基底主要表现为大别造山带前陆逆冲推覆构造,由一系列逆冲断层和逆冲岩片所组成。
The mathematical model of each element of a stand - alone wecs including wind turbine , permanent magnet generator , rectifier , storage battery and pwm inverter is developed in the d - q rotor reference frame in chapter 3 第三章在d - q坐标轴中,建立独立风能转换系统中各组成部分:包括风力机、发电机、整流器、蓄电池和逆变器的数学模型。
Furthermore , the fractal properties of the level sets and inverse image of compact sets of n - dimension non - degenerate diffusion processes is also considered by professor yang in [ 2 ] , and some new results are obtained in this paper 另外,杨新建教授在文献[ 2 ]中研究了紧集上非退化扩散过程样本的水平集和逆像集的一些分形性质,本文在这方面也做了一些工作。
The bt819a of brooktree corp is selected for front - end video a / d transforming , bt852 as video d / a , and the tms320c6711 of ti corp . selected for h . 263 core algorithm processing in the system hardware design 该系统硬件设计选择了conexant公司的bt819a芯片为前端视频采集a d芯片, bt852芯片作为后端视频的输出d a芯片,完成对视频信号数字化和逆处理,为dsp对系统功能处理作好准备。
This paper study the pwm control of inverter and rectifier in detail , analyzing the control theory and functions of the inverter and rectifier in principle , and simulate hystersis - band current control method with matlab / simulink 本文对pwm整流器和逆变器分部分进行了详细的讨论。从理论上分析了整流器、逆变器的控制原理、控制方法,并使用matlab / simulink对滞环控制方法进行了仿真。
Two kinds of aeroengine control structures are proposed : one is model - reference adaptive inverse control with pi ( proportion - integral ) control modified , and the other is adaptive control based on the inverse of the plant model with pi feedback control 以自适应滤波器对发动机进行建模和逆建模,并设计控制器。提出了带pi修正的模型参考自适应逆控制和带pi反馈的基于逆模型的自适应控制。