当电网电压和频率的变化时，分析了电动机、变压器、控制及保护系统、照明系统、通信导航设备等受电器工作的可靠性。
When the variation of bus-bar voltage and frequency occurs, the reliability of electric motors, transformers, control and protection system is analyzed in this thesis.
其包括扫频信号产生与控制、数据采集和频率特性分析三个主要模块以及若干功能扩展模块。
This system includes creating and controlling frequence-scanning signal, datas acquiring and frequence peculiarity analyzing three main modules, and some extended modules.
分析了一阶分形模糊控制滤波器的频率-幅度特性，白噪声和有色噪声分形盒维数的变化；
The frequency-magnitude response of the fractal filter and the change of fractal box dimension of white noise and color noise are analyzed.
本文研究分析了转差频率型矢量控制和基于无功功率的无速度传感器矢量控制。
In this thesis, a slid frequency vector control system and a speed sensorless vector control system based on reactive power are investigated and analyzed.
文中建立了频率调整的辨识模型、频率预报模型和主调频电站的有功出力控制模型，并分析了计算机仿真结果。
The identification model of the frequency regulation, frequency forecast model and control model are developed and the computer simulation results are discussed.
要使用控制图就要求工程师或分析员为控制图选择样本容量、抽样频率(抽样时间隔或抽样区间)和控制限。
The use of a control chart requires that the engineer or analyst select a sample size, a sampling frequency or interval between samples, and the control limits for chart.
针对超声波电源需要解决的频率控制、功率控制和负载匹配三大重要技术问题分别进行了深入分析。
Three major technical issues related to ultrasonic power's performance are considered in this paper: including the frequency control, power control and load matching.
本文分析了该控制系统的组成、传递函数和稳定性，还分析了该系统的频率特性、时域响应和稳态误差。
This paper analyses the composition, transfer function and stability of the control system. It also analyses the control performance index of frequency characteristic, time-domain response and steady…
本文分析了该控制系统的组成、传递函数和稳定性，还分析了该系统的频率特性、时域响应和稳态误差。
This paper analyses the composition, transfer function and stability of the control system. It also analyses the control performance index of frequency characteristic, time-domain response and steady…
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