three-phase power的例句大全

With the development of the technology of superconducting and power electronics, three-phase current source converter remains its dominant status in superconducting magnetic energy storage field.

随着超导技术和电力电子技术的发展，三相电流源型变流器（CSC）在超导储能领域依然占有主导地位。

This instrument can measure such parameters as three-phase current, three-phase voltage, active power and power factor of an ESP well.

该仪器可以带电测量电潜泵的三相电流、三相电压、有功功率和功率因数等参数，采用LCD点阵液晶显示屏显示，掉电数据保存，测量精度0.5级。

Several Problems about Measuring the Power of Three-phase Circuit

测量三相电路功率常见的几个问题

Common DC bus is mainly composed of rectification and inverter unit, with which three-phase alternating current becoming into fixed power direct current, then direct current is again converted into frequency and voltage adjustable alternating current by inverter to control motor speed.

公共直流母线技术主要由整流单元和逆变单元组成，三相交流电经过整流单元以后，变成一定功率的直流电，再经过逆变单元变成频率和电压可调的交流电源，用来控制交流电机的速度。

Measuring method of ratio braking characteristic curve on differential protection for impedance-matching balance transformer with three-phase current power supply

用三相电流源测试阻抗匹配平衡变压器差动保护比率特性曲线的方法

Online Application of Solving Method for Critical Clearing Time of Three-Phase Short Circuit in Power System

电力系统三相短路故障临界切除时间求解方法的在线应用

The welding power source made of three-phase half-control bridge thyristor rectifier provided four kind of static output characteristics which were constant current, constant voltage, quick and slowly current descending.

焊接电源采用三相半控桥晶闸管整流电路，用不同方法计算偏差进行多变量数字解耦PI调节获得恒流、恒压、陡降和缓降四种输出静特性。

In the mode of three-phase four-wire system electrical power supply, the abnormal electrical power supply will do great harm.

在三相四线制供电方式中，供电异常将产生极大的危害。

Discussion on Non-earthing Neutral Point of Power Line for Low Voltage Three-phase Four-wire System

低压三相四线制中性点不接地之浅见

Calculation on Three-phase Short Circuit of Power Distribution Network

配电网三相短路计算

A nonlinear dynamic model is set up to study the sustainable development and utility of renewable resources in this paper. In this paper, instantaneous reactive power theory using in three-phase four-wire system was discussed at first.

本文运用非线性理论建立了可再生资源二次非线性收获的动力模式。讨论了在三相四线制系统中瞬时无功功率理论和有源电力滤波器的研究结果。

The p-q-r instantaneous power theory is introduced, based on which a direct control strategy of UPQC ( Unified Power Quality Conditioner) is presented and its implementation in non-linear and unbalanced three-phase four-wire system is discussed.

阐述了p-q-r瞬时功率理论的原理，提出了基于该理论的统一电能质量控制器（UPQC）的直接控制策略，探讨了将其用于三相四线非线性及不平衡系统中的实现方法。

Development of 100 kVA enhanced SVG based on three-phase four-wire power system

100kVA三相四线系统用增强型SVG的研制

This article introduces a short-circuit and overload selectively protective system of 660/ 1140 V three-phase low-voltage power network.

介绍一种矿井660/1140V低压电网选择性三相短路及过载保护系统；

Design of Single-switch Three-phase Rectifier with Power Factor Correction

单开关高功率因数三相整流器的设计

A method of harmonic current injection in three-phase rectifier based on power electronic switch

基于电力电子开关的三相整流电路谐波注入滤波方法

Unity Power Factor Three-Phase Rectifier Based on Voltage Space-Vector Pulse-Width Modulation

基于电压空间矢量调制的单位功率因数三相整流器的研究

Three-phase rectifier, often used in high power applications, its input current is greater impact on the grid.

三相整流器，往往应用于高功率场合，其输入电流对电网的影响也更大。

Harmonic sources modeling and harmonic superposition simulation of power system with multi-harmonic sources HARMONIC CURRENT MODELLING FOR THREE-PHASE RECTIFIER BRIDGE

多谐波源网络谐波源建模与谐波叠加仿真多谐波源电力系统谐波潮流计算&（Ⅲ）三相桥式整流负荷的谐波电流模型

Design of a novel High-power-factor Three-phase Rectifier

一种新型高功率因数三相整流器的分析设计