本文设计了一种三相电压电流谐波监测系统。
In this paper, an intelligent instrument is introduced for measuring 3-phase voltage, current and Harmonic.
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.
整流侧解除触发角限制后立即投入电压电流平衡功能；
The function of voltage and current balance must be put in at rectifier side after releasing fire angle limited;
谐振、准谐振或多谐振技术方案，变换器的电压电流应力较高。
However, voltage and current stress in these converters are higher.
独创恒流恒压充电技术，使电压电流得到精确控制，性能更稳定。
Unique Constant flow Constant Pressure Technology with accurate control of the voltage and current promoting stable performance.
现有的异步电动机轻载节能器，大多以电压电流相位差为反馈讯号。
Introduces a new energy-saver for lightly-loaded asynchronous motors, taking current as its sample signal.
数据显示、键盘输入、电压电流采样及通信则放入相应中断处理程序。
Interrupt disposal program includes the date display, keyboard input, voltage and current sampling and communicating.
提出了一种基于三相电压型PWM逆变器的电压电流双闭环控制方法。
This paper puts forward a voltage and current double closed-loop controlling method based on three-phase voltage source PWM inverter.
通过对比电缆整定的单位千米阻抗值和电压电流值，来确定线路上的故障点。
Power lines have set impedance per kilometre and using this value and comparing voltage and current the distance to a fault can be determined.
行波保护的原理基于线路故障的暂态特征——行波引起的电压电流量的变化。
Its principle is based on the transient characteristics of the line fault, which is the changes in the voltage and current caused by the travelling wave.
电池配合电力电子转换器，可提供负载所需更精致的电源形式和电压电流准位。
A battery incorporating with a power electronics converter as a power module can provide the required voltage levels for the different load applications.
系统的硬件平台主要由数据采集卡和霍尔电压电流传感器构成的信号调理器组成。
The hardware is made up of Data Acquisition card (DAQ) and signal conditioning extension for instrumentation (SCXI) which is composed of Hall voltage current sensor.
通过并联更多IC各自的输入引脚，连接内部电压电流源容易并联工作(图1)。
By paralleling the respective input pins of more ICs, the connected internal voltage-to-current sources easily operate in parallel (Figure 1).
依据热电阻与温度的数学关系，通过控制热电阻的电压电流恒定实现温度恒定的控制。
According to the mathematics relation between thermal resistance and temperature, controlling the voltage and electric current of thermal resistance invariable to realize the constancy of temperature.
导线应该与元件的电压电流额定功率相匹配，符合当地的实际情况和地方法规的标准。
Conductors should be commensurate with voltage and current ratings of the units, and should conform to appropriate standards of good practice and local codes and regulations.
在软件设计部分中，首先进行了开环系统软件设计和电压电流双闭环控制系统软件设计。
In the design of the software part, this paper gives the software design of open-loop control with SPWM and the software design of voltage-current double closed-loop control.
针对此问题，本文提出了一种新的基于DS P带重复控制器电压电流双环反馈控制方案。
Aim at the problem, a novel inverter control scheme of DSP-based voltage and current dual loop control with repetitive controller embedded is presented in this paper.
对电源系统进行分析，选择合适变量设计一个稳定性好、动态响应快的电压电流双闭环控制。
Then this paper chooses the suitable variable to design the voltage and current double closed-loop controller, which has well stability and fast transient response.
而对于模型中与采集量历史记录无关、反映电压电流瞬时变化关系的元件则用实际元件模拟。
Those components of which values are independent on history record of sampled quantities and reflect the relationship of instantaneous voltage and current are realized by themselves.
逆变器瞬时电压PID控制与电压电流双环控制相比，在电路结构、成本等方面更具优越性。
The instantaneous voltage PID control inverter has advantage on circuit and cost, compared with voltage current dual-loop control inverter.
变电站无功补偿控制一般方法是通过检测母线上电压电流值，控制投切电容器组实现电网无功补偿。
In most substations, detecting the voltage and current and shunt capacitors is the method used for local reactive power compensation.
标准源是一个可以提供指定电压电流信号的标准电源发生器，在计量、监测领域有着十分广泛的应用。
The standard source is a power supply device which can provide appointed voltage and current signal, and is used widely in measurement and monitoring field.
根据长电弧电压电流波形，建立了电压方波电弧的理想电压电流转移特性曲线和对应的电弧等效模型。
According to the voltage and current waveforms of arc, an ideal voltage current transform characteristic curve and an equivalent circuit representing for long arc have been described in this paper.
影响触电者触电时危险程度的因素有：电压电流、电流作用时间、电流通过人体的途径、人体电阻等；
The factors, which influence the dangerous degree of electric shock are:voltage, current, function time of current, path of current passing the human body, resistance of human body etc.
本文介绍电压逆变器的原理，分析带上磁滞同步电动机这一负载后逆变器输出电压电流波形畸变的原因。
It introduces the principle of voltage inverter, analyzed the reason of distortion of output voltage and current wave form, as it is loaded with hysteresis synchronous motor.
TL 494芯片功能强，工作频率高，通过外扩简单的硬件电路即可实现输出电压电流的双闭环控制。
The chip of TL494 functions very strong, and its operation frequency is high. The double closed loop control of output voltage and current is realized by integrating some simple hardware circuit.
与信息电子电路中的二极管相比，电力二极管具有怎样的结构特点才使得它具有耐受高电压电流的能力?。
Diode is the most basic electronic circuit, one of the most common electronic components. The independent current and voltage is it can widely important reasons.
其原理包括参考电压电流电路，2.7V及1.8V电压调整电路，过流保护电路以及低压检测电路四个部分。
The schematics includes four parts: bandgap reference voltage and reference current, 2.7V and 1.8V regulator, over-load protection , Low Battery Detection (LBD) .
其原理包括参考电压电流电路，2.7V及1.8V电压调整电路，过流保护电路以及低压检测电路四个部分。
The schematics includes four parts: bandgap reference voltage and reference current, 2.7V and 1.8V regulator, over-load protection , Low Battery Detection (LBD) .
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