On line predicting obtaining power system post disturbances steady frequency is beneficial for frequency stability assessment and emergency control.
在线预测系统扰动后的稳态频率，有利于扰动后系统频率稳定性评估和紧急控制。
Line equalizer control method, and integrating circuit, frequency shift circuit and transmission device.
线路均衡器控制方法，积分电路，频移电路和传输装置。
The main drive of the whole line uses a reducer with the frequency conversion to control, the speed control, length setting and the localization control are accurate and reliable.
整线成型主驱动采用一个减速电机加变频控制，速度控制、定长、定位控制准确可靠。
To introduce the application of fully digital AC frequency converter in the stainless steel cut to length line, describe its configuration, functions and control features.
介绍全数字交流变频调速装置在不锈钢横切生产线上的应用，说明其基本配置、功能和控制特点。
The AGC unit sends signals to the generating units under its control to raise or lower load as required to correct frequency and tie-line loadings.
AGC控制单元送出信号至受其控制的发电机组，按标准频率和联络线负荷的要求来增大和减少负荷。 收藏。
Using Portable power frequency electric quantity test instrument as controlled equipments can measure and control equipments on-line by the pocket PC.
采用便携式工频电量测试仪作为受控设备，利用掌上电脑对受控设备进行在线测量和控制。
First, a suitable mathematical model for the frequency and tie line power of decentralized control is given.
首先给出一种适于对频率和交换功率进行分散控制的数学模型。
Without precise control of generation and frequency, undesired tie-line flows will result.
若没有发电和频率的精确控制，就会引起不希望出现的联络线潮流。
As the adaptive feedforward control method used for active control of periodic vibration has many shortcomings, an adaptive feedback control method was proposed based on on-line frequency estimation.
针对自适应前馈控制方法的缺点，提出一种周期性振动主动控制的自适应反馈控制方法。
A novel AC variable frequency converting control system with multiple functions is introduced. The system is suitable for maintaining constant oil pressure in main line of oil pipelines.
阐述了一种新型多功能交流变频调速控制系统，用于保持油田输油管主干线油压恒定。
Based on specific demand in machining process, a constant line speed control method is proposed, which is used in variable frequency speed control system.
针对数控机床工件恒线速加工时的特殊要求，提出了一种应用于变频调速系统的恒线速控制方法。
Fully automatic frequency variation speed regulating NC die cutting production line control system;
全自动变频调速、数控冲切生产线控制系统；
Fully automatic frequency variation speed regulating NC die cutting production line control system;
全自动变频调速、数控冲切生产线控制系统；
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