Power quality is getting along with the extensive application of nonlinear load, active power filter technology is the valid way to settle the problem.
随着非线性负荷的广泛使用，电能质量日益下降，有源电力滤波技术是解决该问题的有效手段。
Power quality is getting worse with the extensive application of nonlinear load, active power filter technology is the effective way to settle the problem.
随着非线性负荷的广泛使用，电能质量日益下降，有源电力滤波技术是解决该问题的有效手段。
System frequency of substation is dependant on active load of power grid. when system frequency exceeds allowable limits load shall be regulated immediately for stabilization of system frequency.
变电站的系统频率由电力网的有功负荷来决定，当系统频率超出允许范围时，应及时调整所带负荷以稳定系统频率。
For the control of shunt APF (Active Power Filter), feedforward is an effective way to track the load variation, but accurate models and parameters are demanded.
在并联型有源滤波器的控制过程中，前馈控制能够快速跟踪负荷波动，但需要精确的模型和参数。
While transmitting the load power, the high-voltage transmission line consumes the active power of its own, and absorbs or outputs the reactive power, which affects the power factor significantly.
高压输电线路在输送负荷功率的同时自身也消耗有功功率、吸收或输出无功功率，线路无功会对功率因数产生很大影响。
The DC side active power filter (APF) is shunted at the DC side of rectifier bridge, which has great technical advantages in harmonic suppressing for rectifier load.
直流侧有源电力滤波器并联在整流桥的直流侧，对整流类负载进行谐波治理有很大的技术优势。
According to the equivalent circuit model of non-linear load, a detecting approach of harmonic current in single-phase circuit based on fast iterative algorithm in active power filter is proposed.
根据非线性负载的等效电路模型，提出了一种基于快速跟踪算法的有源电力滤波器单相电路谐波电流检测方法。
This paper therefore proposes a weak bus discriminant, which uses the active power proximity to described the ability of withstanding the load power variation.
研究了电距离、功率因数对临界状态的影响，提出用有功功率裕度反映节点承受负荷功率变化能力的弱节点判别式。
By way of describing the mathematical model and analyzing the transient phenomena of active impact load in power systems, its real-time control methods are discussed.
本文从电力系统有功冲击负荷的数学模型和暂态过程着手，分析和探讨了有功冲击负荷实时控制的基本原理和方法。
In order to improve the power quality, Active power filter is used to compensate harmonic current of nonlinear load to decrease harmonic pollution of the grid.
为了提高电能质量，通常采用有源电力滤波器来补偿非线性负载的谐波电流，以减小谐波对电网的污染。
This method considered the influence of wind speed and load on active power output and reactive power output of wind farms. The processing of the wind farm node reflects its character accurately.
该方法考虑了风速和负荷变化对风电场输出有功功率和无功功率的影响，对风电场节点的处理较准确地反映了其无功和电压特性。
Power system active power economic load distribution model is established in terms of the minimum consumption and maximum cost saving.
构建了以全网煤耗最小、成本节约最大为双目标的日有功经济负荷分配模型。
Based on the differences of harmonic testing point, there are two control ways for shunt active filters, that is, the way of load current sensing and the way of power supply current sensing.
并联型有源滤波器根据其谐波检测点的不同，有两种控制方法。即负载电流检测控制方法和电源电流检测控制方法。
This paper presents a novel detecting method for harmonics and reactive current in single-phase active power filter based on calculation of the real part of the fundamental load current.
本文提出了一种单相有源电力滤波器谐波和无功电流检测的新方法—负荷电流基波有功分量法。
Based on the branch active loss components incurred by individual loads and generators, a novel definition of the using portion of a power element by a particular load or generator is proposed.
基于负荷和发电机的复功率在支路上引起的有功损耗分量，给出了负荷和发电机对元件使用份额的新定义。
The gird side converter is adopted DC voltage stable and unit power factor grid-connected control, and feedback the active power absorbed from the load side to the grid side.
网侧变流器采用直流电压稳定并保证并单位功率因数并网，并将负荷侧吸收的有功功率馈送回电网。
The proposed traction feeder load probability model can be used to describe the statistical characteristics of the active and reactive power of the traction feeder accurately.
研究结果证明，该牵引馈线负荷概率模型可准确描述牵引馈线有功功率和无功功率的统计特性。
The capacity and sites of re active? Load compensation in Qingyuan power system are given using the sensitivity analysis. After reactive compensation, the voltage of the power system is improved.
采用灵敏度分析的方法，计算出清远电网无功补偿的容量及补偿地点，从根本上改善了清远电网电压的异常。
Based on the unity power factor control strategy of single-phase active power filter, remove the part of non-linear load is the single-phase full-controlled rectifier.
基于单位功率因数控制策略的单相有源滤波，去掉非线性负载部分即为单相全控整流。
Based on the unity power factor control strategy of single-phase active power filter, remove the part of non-linear load is the single-phase full-controlled rectifier.
基于单位功率因数控制策略的单相有源滤波，去掉非线性负载部分即为单相全控整流。
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