Finally, the stator resistance effect of rotor position estimation in high frequency voltage signal injection is investigated.
最后，探讨了旋转、脉动高频电压信号注入法下定子电阻对转子位置估算影响的问题。
The paper introduces the precise measuring circuit of ultra-low frequency voltage based on the characteristics of the measurement of ULF.
根据超低频电压信号测量的特点，给出了一种精密测量电路。
The product is suitable fuse in power distribution lines fixed installations with rated power-frequency voltage up to and including 0.6/1KV.
本产品适用于工频额定电压0.6/1KV及以下配电网或工业装置中固定敷设之用。
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。
Thee product is suitable for use in power distribution lines or fixedinsta-llations with rated power-frequency voltage up to and including 0.6/1KV.
本产品适用于工频额定电压0.6/1KV及以下配电网或工业装置中固定敷设之用。 。
The power frequency voltage withstand test and the simulated brushing test show that the robot has great insulating ability and good application prospects.
工频耐压试验和模拟带电清扫试验表明，关节式带电清扫机器人有良好的绝缘性能，并具备了明朗的应用前景。
The discharging properties of air gap in natural ambience with different conditions under power frequency voltage and lightning impulse voltage are studied.
通过对该避雷器进行大量的雷电冲击放电试验，确定了间隙距离和安装位置。
The present invention discloses a refrigerator which can keep the contents in a non-frozen state by an electric field generated by a radio frequency voltage.
本发明公开了一种冰箱，所述冰箱可以通过由射频电压产生的电场将内容物保存在非冷冻状态。
Finally, the paper simulated to the rotor initial point estimate method using DSP related tool and confirmed the accuracy of high frequency voltage signal method.
最后，利用DSP相关软件，对转子初始位置估算方法进行模拟仿真，验证了高频电压信号注入法理论的正确性。
The power supply of high speed electrical machine is high-frequency voltage and the loss of electrical machine density is great and heat dissipation is difficult.
高速电机的体积小、功率密度大和效率高，正在成为电机领域的研究热点之一。
The testing voltage of the secondary winding of transformer has to be 80% stipulated testing voltage while repeated power frequency voltage with-stand test needed.
互感器一次绕组的重复工频耐压试验应在规定试验电压值的80%下进行。
The common commerical frequency voltage test apparatus are divided into two categories, namely the traditional step up transformer system and series resonance system.
常见的工频耐压设备大致可分为两类：传统的升压变压器系统和串联谐振系统。
The discharging curves for power frequency voltage and lightning impulse voltage are measured and its fluctuation range caused by variation of air condition is found.
该式能把工频电压和雷电冲击电压下空气隙的放电曲线箍在特定的范围内。
Using computer control, man-machine dialogue mode, the completion of the power frequency voltage breakdown of insulation media, power frequency withstand voltage test.
采用计算机控制，过人机对话方式，完成对、绝缘介质的工频电压击穿，工频耐压试验。
KP4003A high voltage power supply is the use of high-voltage transformer to power frequency voltage boost to the required voltage for different static elimination product.
KP4003 A高压电源供应器是利用高压变压器将工频电压升压到所须电压，供不同静电消除产品使用。
The insulation class F or class H . The insulation of open-loop U/f condition of . structure has the adaptability to high carrie frequency voltage supplied by frequency converter .
电动机的绝缘等级为F级或H级，绝缘结构具有对变频器输出高载波频率电压的适应能力。
The test results show that the power frequency voltage withstanding characteristics of the insulation of protective relays are the key factor influencing tolerable ground potential rise.
结果表明，继电器绝缘的工频耐压特性是影响这一数值的关键因素。
A novel fundamental frequency and initial phase detection method based on DSP is proposed, which can be used to get synchronous fundamental frequency voltage or current signals of power system.
提出了一种基于数字信号处理器的基波相位和频率校正检测方法，可用于电力系统中电压或电流基波分量同步信号的获取。
In this paper, the functional influence of input voltage non-sine of Varible-frequency voltage source on Electric Power Dynamometer motor discussed. and methods of improving them were also given.
讨论了变频电源输入电压的非正弦对测功电机的性能影响，提出改善不利影响的措施。
The paper introduces the technique feature and the operation principle of chip CS5460A, and its application in high-accuracy power frequency voltage, current, power, power factor, frequency meter.
本文介绍了CS5460 A芯片的特点、工作原理及其在高精度工频电压、电流、功率、功率因数、频率表中的应用。
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 main circuit is consisted of 18 thyristors circuit and protection circuit. With the help of control subsystem, it can get the output of low frequency voltage (current) with the shape of sine wave;
主回路采用由18个晶闸管组成的三相零式电路，并辅以晶闸管的保护电路，通过控制可以得到低频正弦波的电压（电流）输出；
The second reason is that it is difficult to make these circuit voltage controllable over a large frequency range.
第二个理由是很难做到将这些电路的电压控制在一个很大的频率范围内。
Now lower the voltage to its previous value and the bar's vibrations slow down, but not to the original frequency.
现在把电压降低到原来的大小，硅条的震动减弱，但是并不会减弱到原来的频率。
C1E tries to provide more power savings than the traditional C1 state (which only halts the clock signal) by also lowering the voltage and frequency.
同样通过降低电压和频率，C1E尝试比传统C1状态(只会停止时钟信号)提供更大的电能节省。
To cook food, a microwave oven converts voltage into high-frequency electromagnetic microwaves.
做饭时微波炉将电压转化成高频电磁微波。
Its electric frequency, voltage, and current "are not sufficient to create health issues in a healthy person," Cademartiri said.
它的频率、电压及电流“不足以对健康的人造成健康问题，”Cademartiri解释说。
As the frequency of the AC component increases, the DC meter response decreases, until at some frequency only the average input voltage will be displayed.
当交流分量的频率增加时，直流仪表的响应就会变得不够快，直到在某一频率时，仪表只能显示出输入电压的平均值。
The quartz crystal does not vibrate at certain frequency until the voltage is applied.
直到电压加上去以后，石英晶体才会以某一频率振荡。
Automatic governing test of voltage and frequency for main generator (emergency generator).
主发电机(应急发电机)电压、频率自动调节试验。
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