控制

This paper studies a single phase voltage SPWM inverter based on repetitive control, whose key point is achieving a good sinusoidal output wave. Firstly, this paper detailed discusses the inverter system"s working characters and mathematic model. Then repetitive control technique and the choice of its parameters, the whole system"s stability, the strategy of closed-loop control are discussed. Finally

本文首先阐述了逆变系统的工作原理，对单相逆变电源的建模进行了详细讨论；然后论述了重复控制技术理论的原理，重复控制系统参数的选择、整个系统的稳定性、闭环反馈控制的策略；最后给出了基于MATLAB的仿真结果和基于单片机C8051作控制系统的实验结果，并对实验过程中存在的问题进行了详细的讨论。

Secondly,the synthesis of SIPE and the reaction conditions such as catalyst,anti-ether agent,temperature and water are researched to control the generation of diethylene glycol and the self-polymerization of SIPM by controlling the total quantum of distillate and the temperature of distillation column and reaction and the reliable synthetic conditions of SIPE are obtained.

其次，在此基础上，研究了三单体的中间体SIPE的合成工艺，研究了催化剂、抑醚剂、反应温度及水分等对合成反应的影响，同时提出了控制馏出物总量、控制分馏柱温度和控制反应温度等措施来控制二甘醇生成反应和SIPM自聚等副反应，得到了可靠的SIPE合成工艺。

For the characteristics of voile cleaning machine in textile producing, a new control system based on CAN fieldbus is presented in this paper, The principle of the system is introduced, The interface of the network and the communication protocol of the system are discussed in detail, The design of control software is also analyzed, the main program of communication is given. For CAN network communication of master and slave station,the system works reliably, and the voile cleaning is controlled intelligently. It is an advanced control technology. which is verified in practice .

针对纺织生产过程中清纱机的工作特点，提出了一种基于CAN总线技术的控制系统设计方法，分析了系统的工作原理、网络拓扑结构及其硬件构成，详细阐述了CAN总线的网络接口方法和系统通信协议，讨论了控制软件的设计，给出了CAN网络的主要通信程序，由于这种系统的主、从站之间采用CAN网络通信，实现了对清纱工程的智能控制，系统具有运行可靠、性能价格比高的特点，实践证明这是一种先进的控制技术，具有较大的推广意义。

Sliding mode variable structure space vector modulate direct torque control is selected for electro-servo system, and different parts of servo system is modeled.

由于海浪的随机扰动等因素的影响，对电磁转矩的控制成为了伺服控制的关键，最终确定伺服系统的控制方式采用滑模变结构空间矢量直接转矩控制，并建立了系统各部分的数学模型。

The technical scheme of stability controlling for the spandrel groove and intake slopes is put foreword from 3 aspects, namely, slope surface control, anchoring control and bursting control.

提出了从坡面控制、锚固控制和爆破控制三方面对拱肩槽和进水口边坡进行控制的技术方案。

Mainly has carried on to the electric control system's improvement, in the beforehand black-white control system product's foundation, has used the industrial control special purpose computer -- programmable controller control system.

主要进行了对电气控制系统的改进，在以前继电器控制系统产品的基础上，采用了工业控制专用计算机——可编程控制器控制系统。

A control system of fancy spinning frame based on CAN bus is studied. It is composed of controller for fancy spinning frame, CAN bus, epistatic computer and the monitoring software.

论述了一种用于控制花式纱线纺纱机生产过程的控制系统，系统主要由花式纱线纺纱机控制器、CAN总线网络、控制计算机及计算机控制软件等组成。

Since DTC is a newly developed method, recently it is an important and challenging area in the field of AC drives. In this thesis, attention is focused on DTC of squirrel cage motors and electric vehicles driven by AC motors.

DTC作为近年来发展的一种新型的控制技术，成为了交流电机控制领域的研究热点，本文的研究就是针对鼠笼电机转矩控制以及电动车驱动控制的技术而系统地展开的。

In this paper, a simulation study is made for both the vector-convertion model of a squirrel-cage induction motor and vector control system which takes the model as its control object. In the simulation model, many controllers are used and deeply studied, they are classical PID controller, simple fuzzy control, fuzzy controller with integration factor and fuzzy + PI dual mode controller. In the end of this thesis, fuzzy-neural controller application is stressed.

首先建立了交流电动机矢量控制的SIMULINK模型，通过大量的仿真实验分别对PID控制器、简单模糊控制器、带有积分因子的模糊控制器、以及模糊控制与PI控制结合的复合型控制器应用于矢量控制系统做了深入细致的研究和分析。

The main related design are on the following: Using RS232 to realize the target of communication links between host computer and target machines, and to test the PC serial; to make target machine startup disk; to design the Interface of target Machine ; to develop a device driver program module against remote data acquisition and control system ADAM5000 using the technical framework of xPC; and to realize Data Acquisition and controlling according to using ADAM5000 device driver program module against an actual water level in the block diagram of PID processing control system, the generation of real-time control procedures at the scene Debugging was expected to controlling effect.

本课题主要做了以下相关设计：利用RS232实现宿主机与目标机之间通信连接及对PC机串口的检测、制作目标机启动盘、设计目标机界面及在xPC技术框架下针对远端数据采集与控制系统ADAM5000开发了设备驱动程序模块，并以一个实际水箱液位为背景，在已有的PID液位过程控制系统算法框图中应用该设备驱动程序模块实现对现场设备的数据采集和控制，所生成的实时控制程序在现场调试中获得了预期的控制效果。

And Pharaoh spoke to Joseph, saying, Your father and your brothers have come to you.

47：5 法老对约瑟说，你父亲和你弟兄们到你这里来了。

Additionally, the approximate flattening of surface strip using lines linking midpoints on perpendicular lines between geodesic curves and the unconditional extreme value method are discussed.

提出了用测地线方程、曲面上两点间短程线来计算膜结构曲面测地线的方法，同时，采用测地线间垂线的中点连线和用无约束极值法进行空间条状曲面近似展开的分析。