转换元件 meaning in Chinese
converter
interface element
Examples
- Premium converter components deliver audio quality to satisfy even the most demanding studio requirements
优质的转换元件所传送的音频品质甚至可满足录音室的高技术要求。 - The principle of measurement system is inclined trigonometry measurement principle and ccd is photoelectric transformation element
测量系统以斜射式光学三角法为测量原理，采用ccd作为光电转换元件。 - Its control precision must fit a certain extent standard . now , proportional hydraulic valve which developed from the general hydraulic valve is applied in ali kind of control scopes . it uses proportional electromagnetic iron to change the electron signal into mechanical signal instead of the manual adjuster or general switch electromagnetic iron
现在工业生产中得到广泛应用的比例液压阀多是在普通液压阀的基础上，采用廉价而可靠的比例电磁铁作为电-机转换元件，把电气控制信号转为机械信号，以代替原阀内的手动调节器或普通开关式电磁铁。 - There is difference frequency measurement requirement for every part of pid regulating , difference between dynamic quality and static quality in response time and accuracy . according to these , it use the interrupt functions and high - speed counter of the simens s7 - 200 plc cpu226 basic unit and some peripheral circuit to measure frequency ; in software designed , the procedure frame of hydraulic - turbine governor and disperse process of parallel pid are analyzed , an improved pid algorithm is adopted to realize a pid regulation mode with variable structure and parameters ; the mechanical liquid - pressure system of the hydraulic - turbine governor is with electric - hydraulic converter unit of step motor . according to the drive character of five phase of response step motor , a variable frequency regulated voltage driver unit is designed in order to realize interface between plc and driver of step motor
本文利用s7 - 200plc自身的特点设计了频率测量单元，根据pid调节各个环节的特点，以及调速器动态特性、静态特性对频率测量的实时性和精度要求的不同，利用s7 - 200plc基本单元中内置的高速计数器以及相应的外围放大整形、分频电路，实现了水轮发电机组频率的测量；在软件上，对微机调速器的整个程序框架、并联pid的离散化过程进行了分析，选用改进的pid算法实现了变参数、变结构的pid调节模式；调速器的机械液压随动系统具有步进电机电液转换元件，采用五相反应式步进电机，根据其驱动特性设计了变频调压驱动器，实现plc与步进电机驱动器之间数字接口。 - 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。