变频信号注入法,variable-frequency current injection
1)variable-frequency current injection变频信号注入法
1.The arc suppression coil based on controllable magnetic flux uses thevariable-frequency current injection to measure the grid-to-earth capacitance.磁通可控消弧线圈采用变频信号注入法进行对地电容检测,当中性点位移电压较大时,逆变器输出的变频电流中将含有较强的工频干扰,不利于逆变器的稳定运行,也使得通过比较变频信号电流和电压相位判定谐振频率的方法准确率下降。
2)single-frequency signal injected method单频信号注入法
3)high-frequency signal injection高频信号注入法
1.A detail analysis of the model of BLDC defined by the method ofhigh-frequency signal injection was presented,and the applicability of this method to BLDC was discussed.高频信号注入法已被证明是正弦波永磁同步电机(PMSM)转子位置无传感器检测的一种行之有效的方法,但是该方法对无刷直流电机(BLDC)是否同样适用,迄今还没有清晰的答案。
英文短句/例句
1.An Application of Kalman Filter in the Method of High-frequency Signal Injection;卡尔曼滤波器在高频信号注入法中的应用
2.Research on Sensorless PMSM Control System with Fluctuating High Frequency Signal Injection基于脉振高频信号注入法的PMSM无传感器控制
3.Study of Sensorless Drive for Permanent Magnet Synchronous Motor Based on High Frequency Signal Injection;基于高频信号注入法的永磁同步电机无传感器控制
4.The Study of Permanent Magnet Synchronous Motors Control System That Checks Position Using High Frequency Voltage Signal Injection;采用高频电压信号注入法检测位置的PMSM控制系统研究
5.Position Sensorless Control of Permanent Magnet Synchronous Motor Based on High-frequency Signal Injection;基于高频信号注入的永磁同步电动机无位置传感器控制
6.Spectral Sculpting of OFDM Signal for Opportunistic Spectrum AccessOFDM机会频谱接入的信号频谱成型方法
7.Improved Injecting Variable-frequency Signal Method for Detection of Distribution Network Line-to-earth Capacitance注入变频信号检测电网对地电容的改进
8.The Research on Time Delay Estimation Method with the Phase Difference Resulting from Frequency Mixing信号变频引入相差后的时延估计方法
9.high-frequency and modulation frequency signal generator高频调频信号发生器
10.Measuring methods for high frequency signal generatorsGB/T12115-1989高频信号发生器测试方法
11.Research on Fast Acquisition Method of High Dynamic DSSS Signals;高动态扩频信号快速捕获方法的研究
12.A Method of High-frequency Signal Acquisition Based on DSO一种基于DSO的高频信号采集方法
13.Research and Realization of a Method to Measure Frequency for High Frequency Signal Dependent on Low Sample Rate低采样率下高频信号的测频方法的研究与实现
14.A Method of High Frequencies Reconstruction of Audio Signal Based on Reconstructed Octave一种基于重构八度音的音频信号高频重建方法
15.If the input signal is super imposed with high-frequency noise, use a low-passed filter.若输入信号伴随高频干扰，应在线里用高频过滤器。
16.Study on Fault Line Selection Instruments of Small Current Grounding Network Based on Signal Injection and Transient Signal信号注入与暂态信号方法结合的小电流接地选线装置
17.Measurement System of Auto-Tuning ARC Based on Injecting Current Signal基于注入信号的消弧线圈电容检测方法
18.Grounding through High Speed Arc Suppression Coil Technology Based on Signal Injection基于信号注入法的快速消弧线圈接地技术
相关短句/例句
single-frequency signal injected method单频信号注入法
3)high-frequency signal injection高频信号注入法
1.A detail analysis of the model of BLDC defined by the method ofhigh-frequency signal injection was presented,and the applicability of this method to BLDC was discussed.高频信号注入法已被证明是正弦波永磁同步电机(PMSM)转子位置无传感器检测的一种行之有效的方法,但是该方法对无刷直流电机(BLDC)是否同样适用,迄今还没有清晰的答案。
4)high frequency signal injection高频信号注入法
1.A hybrid rotor position self-sensing approach was investigated in this paper by combining thehigh frequency signal injection method and model reference adaptive system(MRAS) method.基于对高频信号注入法和模型参考自适应法转子位置自检测原理和特性的讨论,提出了一种包含零速在内的全速度范围内均能实现转子位置/速度准确检测和控制的复合方法。
5)Low frequency signal injection method低频信号注入法
6)Fluctuating high-frequency voltage signal injection脉动高频信号注入法
延伸阅读
果树注入法治虫技术注入法常用于防治果树害虫。选用内吸性杀虫剂，用针筒或滴管将药液注入树皮内的韧皮部，通过传导，将药液分布于树体，以控制一些刺吸式口器的害虫。这种方法防效高，施用简便，药效持久，不受地形、树体高度和气候条件的限制，对天敌影响小，不受水源影响。具体措施如下：1．选择农药选用内吸性强的农药。目前治虫效果好的内吸性农药有：40%氧化乐果、40%乐果、25%杀虫双水剂、25%杀虫脒水剂、75%可湿性呋喃丹等。2．注入时期从春季果树树液开始流动至秋季果树进入休眠期前的一段时间均可，4月-8月为最佳时期。3．注射药量按树体的大小而定。树高2.5米、冠径2.3米、干粗9厘米-13厘米的树，每株注射原液1.5毫升-2.5毫升；幼树注射1毫升-1.5毫升；成年大树可适量增加，以3毫升-5毫升为宜。4．注入方法用钻在树干离地面20厘米处，向下倾斜45度左右，四周打3个-5个孔，后用滴管或注射器将药液缓缓注入即可5．治虫效果注药后3-4天害虫即大量死亡，6-7天全部死亡。打孔伤口两个月左右可愈合。6．注意事项（1）注意人畜安全。（2）夏季高温季节应将原液稀释3-6倍，分次注射。（3）氧化乐果对蜜蜂毒性较强，花期不宜使用。（4）在采果前40天不用药，以防污染水果。(源自:中国林业网)
