| 1. | Discrete control system
离散控制系统 |
| 2. | The user can carry out the analysis and design of a discrete control system conveniently and there is no need of programs writting
使用该软件，不要任何编程，用户就可方便地完成离散控制系统的分析和设计工作。 |
| 3. | The discrete control system ( dcs ) is helpful to upgrade the technical and management levels and to guarantee the safety operation of waterworks
水厂采用集散控制系统有利于促进水厂安全生产和技术进步，并提高管理水平。 |
| 4. | Abstract : this paper describes a graphical interactive teaching and learning package for discrete control system developed by matlab graphical user interface ( gui ) technique
文摘:基于matlab环境，采用图形用户界面( gui )开发了单输入单输出离散控制系统的计算机辅助分析与设计软件。 |
| 5. | Phase - locked steady speed control algorithm was realized with brushless dc motor discrete control system based on dsp controller , which was applied to high - speed brushless dc motor for magnetically suspended control moment gyroscope
在以dsp为核心的电机数字控制系统上实现了锁相稳速控制算法，并将该方法用于磁悬控制力矩陀螺高速无刷直流驱动电动机的稳速控制。 |
| 6. | In order to validate the feasibility of this modification algorithm , a math model of discrete control system is built , and a fuzzy control simulation system with this modification algorithm is built by using simulation software matlab 6 . 5
为了验证这种校正算法的可行性，首先建立了离散控制系统的数学模型，并采用仿真软件matlab6 . 5建立了一个包含该校正算法的模糊控制仿真系统。 |
| 7. | As a part of the project , some contents , problems and recent researches on networked control system are introduced in this paper first . in order to reduce the occupation of network bandwidth , a method which finds the maximum transmit time can guarantee the stability of discrete control system is presented . for the sake of studying the network ' s delay influence on control system , a networked control system experiment software scheme is put forward in the last part of the paper
文中介绍了网络控制系统的一些基本概念、问题及目前的研究成果，提出在采用模型状态反馈控制律并考虑网络延时情况下，保证离散网络控制系统稳定的最大通讯间隔的选取方法，并研究了建模误差对最大通讯间隔的影响，介绍了通过预报的手段减小网络延时对控制系统影响的方法。 |
| 8. | According to the present problems and developing tendency of hydraulic turbine governor , four main issues of this field are studied in this paper . the content include hydraulic control system , frequency measurement unit , stability of the discrete control system , optimization of control parameters and self - adjusting pid control strategy based on fuzzy logic . several main achievement and results are obtained and shown as follows : the electric - hydraulic pilot valve driven by step - motor is firstly proposed , which solves the problem that the electric - hydraulic converter of hydraulic turbine governor hydraulic servo is prone to be stuck and blocked and improves the systemic stability greatly
本文根据水轮机调节领域存在的问题和发展趋势，对水轮机调速器的液压控制系统、频率测量环节、离散调节系统稳定性与调节参数最优整定以及适应式参数自调整pid控制策略进行了研究，得到以下主要成果和结论：首次提出了采用步进电机驱动的步进式电液引导阀，从根本上解决了水轮机调速器电液随动系统中存在的电液转换元件发卡、堵塞问题，使电液随动系统的可靠性大大提高。 |
| 9. | Based on modeling and analyzing the discrete mathematic model of hydraulic turbine governor system , the edge equation of stable domain of the discrete control system is obtained . according to this equation , the stable domain is specified . compared with continuous system , the changing rules and characters of the discrete system are found , which provide the theoretic foundation for researching the control strategy and the parameter adjustment of discrete control system of the hydraulic turbine governor
在建立水轮机调节系统离散数学模型的基础上，通过分析，给出离散调节系统的稳定域边界控制方程，通过稳定域绘制，比较离散与连续系统的差异，找出离散调节系统稳定域的变化规律和特点，从而为研究水轮机离散调节系统的控制策略及调节参数整定提供理论依据。 |
| 10. | According to the difference equation , the continuous control system is translated into the discrete control system . simulation results indicate the discrete fuzzy control system using of c - s function has the same result with the continuous fuzzy control system , so the discrete fuzzy control system is successful
将连续控制器按照一阶后向差分方法离散化，并利用simulink的c - s函数编程技术建立离散模糊pid控制系统，仿真结果和连续控制系统结果基本一致，表明离散化模糊pid控制器是成功的。 |
