查询词典 instantaneous voltage

On the basis of the above results of detecting methods, the instruction signal calculating circuit is designed according to i〓, i〓 calculating mode. Compensation current generating circuit is also designed and implemented. Its current following circuit is designed according to the instantaneous value comparing mode that used constant time control. The source current detection based control mode and composite control mode and their implementation are firstly introduced in our country. The method and the principle of dc side capacitor voltage control are explained clearly.

根据检测方法的研究成果，采用i〓、i〓运算方式构成并联型电力有源滤波器的指令电流运算电路；对补偿电流发生电路进行了电路设计和实施，其中电流跟踪控制电路采用电流跟随性能好、可靠性高的定时控制瞬时值比较方式；在国内首次研究并实施检测电源电流控制方式和复合控制方式；清楚地阐明了并联型电力有源滤波器直流侧电压控制的原理和方法，并在装置中实施。

An electronic instrument that produces an instantaneous trace on the screen of a cathode-ray tube corresponding to oscillations of voltage and current.

示波器一种电动仪器，当电流和电压摆动变化时将其轨迹显示在阴极射线管的屏幕上

In electronics, the product of an instanta neous voltage and the correspondent instantaneous current.

在电子学［技术］中，瞬时电压及其相应的瞬时电流的乘积。

Power meter measure true power by multiplying the instantaneous input voltage and input current, the product is then averaged out.

功率表是通过将瞬间的输入电压和输入电流相乘﹐然后取平均值来得到真实的输入功率。

This paper, based on the application of microcomputer digital processing and intellect and adaptive relaying principle describes a study on the performance of the adaptive current and voltage instantaneous trip protective relays, and a relay based on proposed principles is carried out.

本论文的主要工作是利用微机的数值处理能力和智能作用，采用自适应继电保护的理论，对自适应电流、电压综合速断保护的动作性能进行了理论分析，并且将理论应用于实际的装置之中。

Based on the compensate admittance model of Steinmetz theory a method is put forward which use instantaneous values of load current and voltage to denote it. The simulations and practical application in the design of SVC model have shown that the proposed method is very effective, accurate, and with fast response performance.

本文基于不平衡负荷的平衡化原理(即Steinmetz原理)的补偿导纳模型，采用负荷电流电压瞬时值采样的方法补偿无功功率，并将该方法应用于SVC样机的设计，结果表明，它们是快速有效和准确的，具有实际的工程应用价值。

In the experiment of motor, instantaneous value of voltage and current are accurately measured, and then software in the computer can be used to analyze the spectrum and filter the data. These operations improve the veracity, and greatly reduce the difficulty in testing.

在电机试验中，准确地测出电压和电流值后，可以利用数据处理程序进行频谱分析以及滤波处理等操作，提高了准确性，并大大降低了测试难度，并获得电机控制中所需的基本参数。

Finally,this paper discusses the problems of neutral point control that exists in the three-level inverter, and adopts two methods to control neutral voltage balance namely judging power direction and detecting instantaneous current value.

最后论文还对多电平逆变器存在的中点电位漂移问题进行了讨论，并采用两种方法来实现中点电压平衡，即判别逆变器功率流向法和检测瞬时电流值方法。

In this paper, two harmonic current detecting methods based on the theory of instantaneous reactive power of three-phase circuits are analyzed and compared with different voltage condition.

分析了基于瞬时无功功率理论的三相电路谐波电流检测的两种算法，并根据算法原理在不同电压条件下进行了对比研究。

By the instantaneous power generated by the impact of voltage fluctuations in the computer hardware chips, circuits, resistors and so on.

由停电的瞬间产生的电压波动会冲击电脑硬件的芯片，电路，电阻等。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。