而被称为“同步向量”的设备能以一秒30次或更快的速度采样电压和电流——向电力公司和系统操作员提供有关电网健康状况的信息更为精确。
Devices called synchrophasors can sample voltage and current 30 times a second or faster-giving utilities and system operators a far more accurate view of the health of the grid.
同步电动机不但功率因数高，而且其转速与负载大小无关，只决定于电网频率。
Not only high power factor synchronous motor, and its speed is independent of the load, depends only on grid frequency.
在线调节步长改变电压收敛速度，设计锁相控制电路，自动同步跟踪电网频率和相位。
The online variable step can also regulate the voltage convergence rate, and the phase-locked control circuit is designed to synchronously trace frequency and phase of power grid automatically.
在总体评估特高压同步电网安全稳定性的基础上，探讨进一步利用新技术提高系统安全稳定水平的可能性及效果。
Based on security and stability evaluation of UHV power grid, the possibility and purpose of the measures are discussed to increase the system security level.
本文研究了一种采用数字化技术，实现与电网电压同步的基准正弦电路的原理，给出了电路关键参数的设计原则。
A reference sinusoidal circuit based on digital technique and synchronous with the line voltage is investigated. The design principle of the key circuit parameters is given.
近年来，基于GPS的广域电网状态实时同步监测系统得到了重视。
In recent years, great attentions are paid to real-time synchronous monitoring systems for the states of wide area power systems based on the GPS.
针对输电网提出了一种基于同步相量测量信息的电压稳定指标。
A voltage stability index based on synchronized phasor measurements is presented for trans - mission systems.
在各类电站中，励磁系统是保证同步发电机正常工作，提高电网稳定水平的关键设备。
In all kinds of power station, excitation system is key device which guarantees that synchronous generator works in normal state and increases stable level of electric network.
着重介绍电网实时相量监测系统中的基本功能单元——同步相量测量装置的原理和实现方法。
The basic function unit of real-time phasor monitoring system for power network-synchronized phasor measurement unit was proposed.
实现了图元与数据库的同步联系，为实现电网软件的同平台操作打下基础。
It realizes the mutual changing in graphic element and database, in the same time, the platform of power system software operation is established.
本文主要研究内容是直驱风力发电网侧变流器的同步方法与控制策略。
This main research content is synchronized method and control strategies for grid side converter in direct drive wind power.
同时讨论了减少误差及在电网有畸变情况下保持同步的方法。
The way to reduce error and to keep synchronous during power wave distortion is also discussed.
与同步电机磁链观测相似，虚拟电网磁链的观测也存在初始值的问题。
However, there are initial problems in the observation of the virtual line-flux-linkage, similarly to the synchronous motors, should be solved.
提出一种利用同步电压相量进行输电网络故障定位的新方法。
A novel fault locating method for transmission network using synchronized voltage phasor is presented.
重点研究特高压同步电网是否能满足我国电力系统安全稳定性的标准要求。
It is researched whether if the security and stability performance of ultra high-voltage (UHV) grid could meet the requirements of power system security and stability criteria of China.
介绍了同步发电机并联投入电网的条件、不满足条件下并网所带来危害以及常用的并网方法，提出了一种相灯指示法来实现发电机并网的新方法。
A new method called phase-light showing measurement which is used to achieve the thing that synchronous generators are input in electric network by parallel connection are mentioned.
同步辐射装置（SRF）供电系统的冲击负荷会引起配电网络电压波动。
The surge load of Synchronous Radiation Fitting(SRF) power supply system may cause voltage fluctuation of distribution network.
该方法以电网电压为同步信号，在电网电压信号的过零点采样直流侧电容电压，并通过周期离散控制可以获得负荷电流有功分量。
The new control way can realize linear control for DC-bus voltage and get the fundamental component of the load current synchronously with a little of calculation.
通过实现以上所述，当需要百万瓦特功率时，电厂不仅可以更快的与电网保持同步，而且还能在必要的参数下避免昂贵的设备损失。
By doing so, when megawatts are needed, the plant can synchronize to the grid not only more quickly, but also within the necessary parameters to avoid costly equipment damage.
通过电能质量控制系统与电网间同步运行试验和谐波电压抑制试验，实现了逆变器与电网的同步运行控制以及负载谐波抑制控制。
The experimental results of proposed power quality control system in restraining harmonic voltage and of its synchronous operation with a power system are presented.
为了保证电机安全运行和电网运行的可靠性，需要分析计算大型同步发电机正常运行时的定子温度场。
In order to ensure the generator operating safely and the power system running without faults, it is necessary to compute and analyze the stator temperature field.
根据配电网无功功率补偿的工程要求，提出了一种基于DSP的静止同步补偿器(STATCOM)软硬件设计方法。
According to the requirement of reactive power compensation, the paper presents a software and hardware design method of the STATCOM based on DSP.
提出一种静止坐标系下配电网静止同步补偿器(D - STATCOM)的自适应无差拍控制方法。
An adaptive deadbeat control method in stationary reference frame for distribution level static synchronous compensator (D-STATCOM) is proposed.
对同步电机启动、加速、励磁模式切换等工作过程中变频器的应用进行了论述，介绍了电网改造的经济方案，提出了变频器在使用时的注意事项，达到既要节能又要省费用的电网改造效。
Based upon discuss of the application of frequency-converter in the start, acceleration, exciting model transform and other processes the economic reconstruction plan is introduced for power network.
电网时间同步系统对电力工业非常重要，制定电网时间同步技术标准也很重要。
It is very important that the time synchronism system of an electric power network to power industry and working out the technical standard for time synchronism of electric power network.
重点研究特高压同步电网是否能满足我国电力系统安全稳定性的标准要求。
The security and stability of power system and the economic factors should be considered before breaking the electromagnetic loop circuit.
低压配电网电力线噪声可以分为背景噪声、与工频同步的周期性噪声、突发性噪声、窄频带噪声等。
The noises on low- voltage power networks are classified four types including background noise, periodic noise, burst noise and narrow band noise.
由于同步信号受电网谐波的干扰，常使微机控制的中频感应加热电源不能正常运行。
A medium frequency induction heating power source controlled by the microprocessor can not be run normally, in case its synchronous signals are disturbed by the harmonic from common network.
该电厂能否快速有效地启动与电网保持同步，以满足需求，并节省成本是一个非常重要的问题。
It is essential that this peaking plant quickly and efficiently startup and synchronize to the grid in order to cost-effectively respond to seasonal spikes in demand.
该电厂能否快速有效地启动与电网保持同步，以满足需求，并节省成本是一个非常重要的问题。
It is essential that this peaking plant quickly and efficiently startup and synchronize to the grid in order to cost-effectively respond to seasonal spikes in demand.
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