this paper describes the input circuit and anti-interference measures of a-d-a type digital frequency discriminator used in the speed governing system of hydraulic turbines.
本文介绍用于水轮机调速系统中的a-d-a型数字鑒频器的输入电路和抗干扰措施。
the hydraulic speed governing system based on variable frequency technology is one new hydraulic speed governing way.
基于变频技术的液压调速系统是一种全局性的新型液压调速方式。
the experiment showed that this pid speed governing system could reduce the surging of engine speed and shorten the system responding time, consequently improve the vehicle performance.
调速试验表明,该pid调速系统降低了发动机转速振蕩,减少系统响应时间,有效地提高了整车的性能。
this article recommended an experimental installation of dc speed governing system and detailed its formation, principle of speed regulation, circuit, and its application in experiment education.
本文介绍了直流调速系统实验装置的构成、调速原理、线路及其在实验教学中的应用。
it is a long time since the traditional mechanismic speed governing system has been used for control the speed of turbine. it has so much defects as choke, leakage, wide velocity perturbation.
长期以来,透平机一直使用传统的机械调速系统来控制其转速,卡涩、液压系统渗漏及转速波动范围大等均属其不可克服的缺陷。
the paper also integrated the inverter model and nonlinear dynamic model of asynchronous ac motor and obtained the asynchronous ac motor speed governing system model covering the dead-time.
并将逆变器模型与异步电机非线性数学模型结合,建立计及逆变器死区时间后的异步电动机变频调速系统的整体数学模型。
energy-saving principle about pump-control-motor speed governing system with inverter is elucidated. power saving rate is proposed.
阐明了交流变频泵控马达调速系统的节能原理,提出了功率节省率的概念。
these make srd a kind of new promising speed governing system with high efficiency and energy saving ability.
所以,srd系统是一种具有广阔前景的新型高效节能的调速系统。
an introduction was made on the transformation of the speed governing system of industrial turbines imported by the xinggang power plant of shougang iron &steel co. ltd. many years ago.
首钢新钢动力厂对多年前引进的工业汽轮机的调速系统进行了改造,解决了引进设备的老化问题和备件供应问题,并降低了机组能耗。
software direct compensating motor speed loss of open loop pump-control-motor speed governing system with inverter is studied deeply in theory and experiment.
对软件直接补偿开环变频泵控马达调速系统的马达转速降落进行了理论分析和实验研究;
an introduction was made on the transformation of the speed governing system of industrial turbines imported by the xinggang power plant of shougang iron &steel co.
首钢新钢动力厂对多年前引进的工业汽轮机的调速系统进行了改造,解决了引进设备的老化问题和备件供应问题,并降低了机组能耗。
with the development of the electronic technology, the digital speed governing system has been used so as to enhance accuracy and reliability of the devices.
随着电子技术的飞跃发展,数字调速器已成为一种必然趋势。
the low speed efficiency of pump-control-motor speed governing system with inverter is obviously reduced when setting low frequency compensation.
设定低频补偿功能会较大幅度地降低变频泵控马达调速系统低速段的效率。