提出基于瞬时值的功率控制算法。
The instantaneous power control algorithm of UPFC-a new rapid method is put forward.
一种检测和存储模拟信号瞬时值的设备。
A device that senses and stores the instantaneous value of an analog signal.
模拟部分采用电压电流瞬时值控制，提高响应速度；
The analog part adopts the control based on current virtual value and improves the response speed.
采用电压瞬时值反馈降低了输出电压波形的总谐波量。
The total harmonic distortion (THD) can be reduced by the instantaneous voltage feedback control.
频率调制：载波的频率依照调校讯号的瞬时值而改变的一种调制。
Frequency modulation(FM): the form of modulation in which the frequency of the carrier is varied in accordance with the instantaneous value of the modulating signal.
提出了一种基于重复控制和瞬时值反馈控制的逆变电源控制系统。
An inverter control system based on repetitive control and instantaneous feedback control is presented.
同时阐述了电动机电流测定的常用方法，如瞬时值的测定，积分测定等。
The common methods of current measurement for motor are presented, for example, instantaneous value measurement, integral measurement, etc.
应用瞬时值对称分量变换，可提取电压、电流故障分量的正序空间向量。
The transformation of the instantaneous value symmetry component applied, the positive sequence space vector of fault component of the voltage and current can be derived.
仪器采用数字显示，并可随时打印记录温度的瞬时值、平均值与最高值。
This instrument has a digital display, which can print the instantaneous, mean value and maximum of measured temperature conveniently.
提出了一种利用正弦交流电压和电流的瞬时值测量正弦交流电参量的新算法。
Adopting sinusoidal instantaneous voltage and current, a new algorithm for measuring sinusoidal electrical parameters has been put forward.
文中将目前逆变器输出波形控制技术分为基于周期的控制和瞬时值反馈控制。
The waveform control technology of inverter is classified into periodic control and instantaneous control in this paper.
感应电机定子电阻瞬时值受诸多因素的影响，且无法建立精确的数学模型去求解。
The stator resistance of an induction motor is affected by many different elements, and the exact math model can not be established for calculation of the instantaneous resistance.
该方案采用电感电流和输出电压瞬时值双环控制，以提高输出稳定性和动态响应。
To improve the steady state operation and dynamic response, a dual-loop control strategy which incorporates the inductor current and the instantaneous output voltage has been used.
所设计的电网参数测试仪可以测量功率因数、电压和电流的有效值、瞬时值等参数。
The tester designed can be used to measure the parameters, such as power factor, effective value of voltage and current, instantaneous value, etc.
对于不同地区只要调整净辐射折算系数便可解决由蒸散发瞬时值求算全天值的困难。
As in different area, adjusting net radiation convert coefficient only can solve the daily evapotranspiration calculation problem from the instantaneous evapotranspiration value.
交流采样是按一定规律对被测信号的瞬时值进行采样，再用一定的数值算法求得被测量的值。
The AC sampling is carried out testing the AC signal based on the certain regulation, and desired the values of the AC signal based on the certain mathematical method.
利用非传统电流互感器无饱和的优点，将瞬时值电流差动保护原理应用到分布式母线保护计算中。
The principle of instantaneous current differential protection is applied in the calculation of distributed busbar protection, which takes the advantage of unsaturated current transducer.
数字控制器存在采样与计算延时，实时控制性差，采用数字控制器实现双闭环瞬时值控制比较困难。
But it is hard to realize the dual-loop instantaneous control with digital scheme, because there is delay time of sampling and computing and lack of real-time regulation for digital control.
本研究从认识反应动力学特性入手，提出了基于目标函数瞬时值的导数，确定最优反应工艺的方法。
This paper begins with reaction kinetics' specific, and proposes an approach to optimization of reaction technology based on the derivative of instantaneous values of objective function.
系统利用重复控制抑制非线性负载下的电压畸变，利用瞬时值反馈控制加快负载突变时的动态响应过程。
Repetitive control is used to reduce voltage distortion under nonlinear loads and instantaneous feedback control is designed to quicken the dynamic response process under abrupt load variation.
本文对开关磁阻电机发电运行原理，对采用定时瞬时值比较方式的PW M变流器的原理与控制进行分析。
This paper firstly introduced the principle of switched reluctance motor; the working principle and control of PWM converter, which USES timing and compare of instantaneous value, is described.
逆变控制采用SPWM方式，由数字PID调节器实现输出电压瞬时值反馈，并采用有效值调节实现稳压。
SPWM method is adopted to control the inverter model. Digital PID adjuster is used to realize voltage loop and the value modulation is used to maintain the value of output voltage.
它的主要思想就是在一个周期内用若干个交流信号瞬时值描述该交流信号波形，并计算出有效值及其它有关参数。
Its main ideas are that the AC waves are described through some AC instantaneous values in a period, and then RMS values and other concerned parameters are worked out.
电流数据采样的离散性和采样初始时刻的不确定性是导致采样瞬时值电流差动保护动作值模糊区产生的根本原因。
The decentralization of sampled value and the uncertainty of sampled time bring forth the action fuzzy area of sampled value current differential protection.
在单位功率因数整流器中，利用瞬时值比较法来控制电源电流，不但控制简单，还可有效限制器件的最高开关频率。
The method of instantaneous value comparison for source current control of unity power factor rectifier possesses advantages of simplicity as well as valid restriction for maximum switching frequency.
文中设计了一种模糊在线检测器以检测电阻的瞬时值，为改善直接转矩伺服系统的低速性能找到了一种有效的方法。
This paper designs a fuzzy observer for measuring resistance value of induction motor and presents an effective method for improving the performance of the DTC servo system at low speeds.
电力计量直接的对象是电子互感器，IEC标准统一规定了电子互感器的两种输出方式：数字瞬时值序列和模拟电压信号。
The direct object of power metering is electronic transformer. From IEC standards, electronic transformer has two kinds of output: digital signals and analog signals.
该文对零输出换相策略、电压增益及开关动作顺序进行了详细的分析，并与双电压合成控制策略下共模电压的最大瞬时值进行了对比。
The paper analyzes in detail the synthetical method, the voltage gain and the switch action sequence of matrix converter based on the zero-output commutation strategy.
功率变换器主电路采用电压电流双闭环瞬时值反馈控制方式，电容电压和电流瞬时值控制环提高了系统的稳定性、硬特性、稳态特性及动态特性。
The voltage and current real-time feedback control method is adopted, which improves the stability, the stiffness, the static characteristics, and the dynamic characteristics of the system.
功率变换器主电路采用电压电流双闭环瞬时值反馈控制方式，电容电压和电流瞬时值控制环提高了系统的稳定性、硬特性、稳态特性及动态特性。
The voltage and current real-time feedback control method is adopted, which improves the stability, the stiffness, the static characteristics, and the dynamic characteristics of the system.
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