该文研究了面向节点，随运行工况变动跟踪估计电网等值参数的方法。
A tracking estimation method of network equivalent parameters of facing nodes is researched with the variation of operation point.
潮流跟踪法应用于输电网的有功潮流分析和无功潮流分析。
The tracing method in meshed transmission networks is applied to both active and reactive power flows.
基于正交变换，提出了一种新的电网频率跟踪方法。
Based on orthogonal transform, a new method of tracking power grids frequency has been provided.
并针对电网故障的随机性特点，在面向对象环境中实现了对随机故障的模拟，同时用深度优先算法进行了快速的拓扑跟踪。
To accord with the network malfunction's randomicity, the stochastic malfunction simulation and realizes the topology tracking using the DFS in objected-oriented environment are realized.
并网逆变器采用最大功率跟踪技术，最大限度地把光伏电池转换的电能送入电网。
Grid inverter adopts maximum power tracing technology which puts electricity energy transformed by photovoltaic battery into electricity grid.
并网逆变器采用最大功率跟踪技术，最大限度地把光伏电池转换的电能送入电网。
Grid inverter adopts maximum power tracing technology, which puts electricity energy transformed by photovoltaic battery into electricity grid.
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.
提出了一种适于高精度实时电力谐波分析的自适应调整采样频率的电网频率跟踪算法。
An adaptive sampling frequency tracking algorithm which adapt to realization of precise real time harmonic analysis is introduced.
分析自动跟踪补偿消弧线圈接地电网的零序测量电流分布规律。
The zero-sequence measurement current's distribution in the automatic arc-suppressing coil earthed power system is analyzed.
试验结果表明，无差拍SVPWM的控制算法可有效跟踪电网电压和参考电流。
Test results show that the deadbeat SVPWM control algorithm can effectively track the grid voltage and reference current.
采用此算法可实时跟踪电网频率波动，极大地减小频谱泄漏提高谐波测量精度。
This method adjusts sampling interval to trail after the power system frequency while harmonics analyzing, so that this method greatly reduces the spectrum leakage.
通过在线拓扑分析算法，推理出操作路径，使该系统具有很好的跟踪电网运行方式的能力。
By using an on line topology analysis algorithm, the inference engine can search operation paths, and identify current operation status correctly.
为消除电网这个外部输入对指令电流跟踪的影响，引入了电压前馈，并从理论上推导了前馈的具体关系式。
For remove the influence of the grid input on APF tracking the reference, introduces feed forward of grid voltage, and gives the concretely formula of the feed forward.
但由于截断信号会产生频谱泄漏，使得相位和频率计算结果有一定误差，采用该方法跟踪频率，实时计算电网变化的频率速度较慢。
The spectral leakage caused by the truncated signals results in frequency calculation error and slows frequency tracking. A Hanning windowed recursive DFT method is introduced.
实现了电网正常运行状态下的电容电流自动跟踪检测，故障运行状态下的动态补偿。
Under normal running state of the network, automatic tracking measure of capacitive current is realized; under fault running state of the network, dynamic compensation is realized.
本文就城网改造中，配电网中性点运行方式问题进行了分析、探讨，强调采用中性点经电阻和自动跟踪补偿消弧线圈接地方式。
In the article the author analysises and discusses earthed neutral system. Methods of electric resistance and autotracking arcextinguishing coil in neutral point are discussed.
由于AGC以整个电网为调节对象，因此只有电网内机组对AGC下达的负荷指令具有良好的跟踪性能时才能保证发电质量。显然，对机组而言这是典型的负荷预见控制问题。
Since what AGC controls is the entire power network, only good tracing performances to load demand of AGC of all units in the network can guarantee good generation control quality.
建立过电压实时跟踪监测系统、进行过电压的特征分析是建立抑制电网过电压的基础。
The establishment of over-voltage real-time monitoring and analysis systems is the basis of over-voltage suppression.
配电网正常运行时，装置自动跟踪电网参数并计算相对地电容电流。
Under normal operation of distribution network, the device automatically traces network parameters and calculates phase-to-ground capacitive current.
配电网正常运行时，装置自动跟踪电网参数并计算相对地电容电流。
Under normal operation of distribution network, the device automatically traces network parameters and calculates phase-to-ground capacitive current.
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