交流电力系统

船舶交流电力系统短路计算软件开发

Development of Calculation Software for Short Circuit in Shipboard AC Power System

对于三相交流电力系统，各相电压和电流应处于幅值大小相等、相位互差120°的正序对称状态。

To three-phase AC power system , the currents and voltages must be equal of amplitude and the phase-shift between each other should be 120 of positive order .

并联电力电容器组是现代交流电力系统的主要无功补偿装置。

Power capacitors are the basic components of reactive power compensation device in the power system .

舰船交流电力系统短路电流的改进算法及计算软件的编制

An Improvement Algorithm of Vessel Alternating Power System ′ s Short Circuit Fault Current and Establishment of the Calculating Software

无功功率是交流电力系统设计和运行中的一个重要因素，为了减少电能损失，需要在电力用户端与电力系统的变电所内合理配置一定的无功补偿装置。

Workless power is an important factor in designing and running of alternating current system . A compensation device is needed in substation and the end users to save electricity .

直流电力系统的发展滞后于交流电力系统，尤其是高压直流电力电缆的研制远远滞后于交流电缆。

Compared with AC power system , the development of DC power system lags , especially the development of the HVDC power cable has lagged far behind that of the AC cable .

直流输电系统单极大地运行时，土壤和交流电力系统构成一个大范围的直流通路网络，从大地返回的电流流过变压器中性点将使变压器出现直流偏磁，影响变压器的正常运行。

During monopolar operation of HVDC systems with ground return , there is a large scale DC route between soil and AC power net and currents returned from earth may enter into neutrals of transformers , which cause DC bias of transformers and influence transformers running .

舰船交流电力推进系统PWM方式的比较

A Comparison of SVPWM and SPWM in AC Ship Power Propulsion Systems

交流电力推进系统的设计需满足高效率、低谐波和低噪声的要求。

AC power propulsion systems have the requirements of high efficiency , low harmonics and noise .

基于交流采样的电力系统频率测量的滤波器设计

Filter design of frequency measurement for power system based on AC sampling

交流变频电力推进系统仿真建模

Simulation Modelling for AC Variable Frequency Electric Propulsion System

交流模型下电力系统概率潮流计算

Probabilistic power flow computation under AC model

交流自动电力传动系统

Automatic electric AC drives

和谐HXD1型大功率交流电力机车电传动系统

Electric drive system of type HX_D1 high-power AC electric locomotive

在交流系统中装设电力系统稳定器PSS，在直流系统中配置附加的控制器DCM可以有效地抑制低频振荡。

If DCM control in DC system and PSS in AC system are allocated , low-frequency oscillation may be suppressed effectively .

小功率交流电力测功器系统的研制

Development of an Alternative-Current Dynamometer System for Testing Small Power Engines

交流变频调速电力推进系统的典型应用

Typical application of electric propulsion system used on AC converter

基于斩控式交流变换技术的电力系统纵横调节器

Power System Vertical / Horizontal Voltage Regulator Based on Chopping Mode AC Conversion Technology

灵活交流输电系统在电力系统中的应用

The Application of FACTS in the Power System

小型交流电力测功机系统的研制

R & D of Small AC Electrodynamometer System