以基波潮流和谐波潮流的解耦性为基础，提出了一种将电力系统三相不对称基波潮流和谐波潮流分离迭代的计算方法。
Based on the decoupling of fundamental power flow and harmonic power flow, a separate iteration method for calculating three-phase asymmetrical harmonic power flow in power system is presented.
电力系统无功功率补偿不足会引起功率因数下降，而三相功率不平衡则会影响到用电设备的安全。
The power factor of power system will be decreased by under-compensation of reactive power and it is harmful for the devices of customers while the power in the three phases are unbalanced.
本文主要论述了电力系统中母线上发生三相对称短路时，其动稳定和热稳定的校验问题。
This paper discusses the short-circuit verifying of wires in dynamic stability and heat withstand while the wires are chosen in the design of power system.
通过构造一个虚拟的三相对称系统，该检测方法可以推广到单相电力系统的谐波电流检测。
The single-phase harmonic current components can also be detected by the method effectively through constructing a dummy symmetry three-phase power system.
提出了一种基于综合相量幅值和相位变化规律实时测量电力系统振荡中振荡频率及瞬时频率的算法，利用三相电流经相应变换获得综合相量。
An algorithm based on the magnitude and phase Angle of the generalized phasor to measure instantaneous frequency and swing frequency while the power swing occurred is presented.
它涵盖五个方面：供电电压允许偏差、公用电网谐波、三相电压不平衡度、电力系统频率允许偏差、电压允许波动和闪变。
It covers five aspects: supply voltage tolerance, utility harmonic, three-phase voltage unbalance, power system frequency tolerance, voltage fluctuation and flicker.
使用相分量方法在分析电力系统三相不对称网络时更加方便。
Phase components method may offer advantages in the analysis of unbalanced three-phase networks.
推导了电力系统电磁暂态仿真软件EMTDC中的三相异步电动机模型，介绍了电动机暂态过程的求解算法。
The three-phase asynchronous induction motor models in EMTDC are deduced and the solution algorithms of induction motor transient process are introduced.
利用电力系统三相交流电压过零点和高速数字频率合成器解决了跳频系统中同步和快速频率合成的两个关键问题。
The zero-crossings of the AC voltage and digital frequency synthesizer are used in solving the two main problems in frequency hopping system-synchronization and fast frequency synthesizing.
电力牵引负荷在电力系统中的分布计算宜采用三相分析法。
The three-phase analysis method should be applied for the distribution calculation of electrical traction load in the electrical system.
适用于户内312kv三相交流50（60）hz的电力系统内和各型号高压开关柜配套使用，亦可作为高压电器设备检修时接地用。
Apply to indoor 312 kv three-phase ac 50 (60) hz power system in various models and high-voltage switchgear supporting the use, can be as high voltage apparatus equipment maintenance with grounding.
三相负荷不平衡以及系统元件三相参数不对称都会引起电力系统三相不平衡。
The definition and national standard of three-phase unbalance in power system were expatiated.
三相负荷不平衡以及系统元件三相参数不对称都会引起电力系统三相不平衡。
The definition and national standard of three-phase unbalance in power system were expatiated.
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