Compared with the injected s signal technique, this method is called low frequency AC signal injection method.
交流注入信号频率本文选择60 Hz，相对与S信号注入法，称为低频交流注入法。
The principles of using signal injection method to detect single-phase earth fault of distribution network at present are compared and analyzed.
对目前配网采用信号注入法检测单相接地故障的原理进行比较分析。
A series of TY protections based on the s's signal injection method have been widely applied to fault line selection and fault location in power systems in China.
基于“S注入法”的选线定位保护新原理的TY系列选线定位保护已大量运行于国内电力系统。
The signal injection method is widely used for automatic selecting fault line in indirectly earthed power system, which has great effect in the system of single-phase ground fault.
注入信号法是一种效果较好的选线方法，其原理广泛应用于小电流接地系统单相接地故障的自动选线。
A method to implement sensorless control of Surface Mounted PMSM based on fluctuating high frequency voltage signal injection was introduced.
本文介绍了一种基于脉动高频电压信号注入法实现面装式永磁同步电机无传感器控制的方法。
Based on an s injection method of reducing work frequency, a novel signal generator is developed.
介绍一种降低频率的S注入法信号发生装置。
In this paper, the small signal port characteristics is established by the "perturbation signal feedback injection method", which lays a foundation of the system stability analysis.
本文在对系统进行适当简化的前提下，采用“扰动信号反馈注入法”建立了系统的小扰动端口特性，为系统的静态稳定性分析奠定了基础。
The paper analyzes the method of low frequency signal injection, which is usually used to detect DC system grounding fault, and advances the method based on wavelet transforms.
分析了低频信号注入法，并且针对其缺陷提出了基于小波变换的检测方案。
The detection method of low frequency signal injection, which is widely used, is easily influenced by the capacitors between ground and each branch and by the ring net.
目前广泛使用的低频信号检测法容易受到直流系统支路中存在的对地分布电容和环网的影响。
To satisfy the need of hardware-in-the-loop simulation of four-element infrared seeker, a method of dynamic infrared scene generation based on "direct signal injection" was proposed.
针对四元红外导引头半实物仿真任务的需要，提出基于“直接信号注入”的动态红外场景生成技术。
The paper introduces a new rotating speed measuring method for diesel engine utilizing pressure pulse signal on the tube wall of high pressure fuel injection system of diesel engine.
本文介绍一种利用柴油机高压泵喷油管壁上的压力波脉冲信号，来测量柴油机转速的新方法。
The method employed high-frequency voltage-signal injection to make motor form a high-frequency current-vector, of which the negative component current contained rotor space-position information.
该方法采用高频电压载波注入方式形成高频电流矢量，其负序分量包含了转子空间位置信息。
The method employed high-frequency voltage-signal injection to make motor form a high-frequency current-vector, of which the negative component current contained rotor space-position information.
该方法采用高频电压载波注入方式形成高频电流矢量，其负序分量包含了转子空间位置信息。
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