电网

High performance power line harmonic analyzer.

高性能电网谐波分析仪。

In harmonic measure aspect, all kinds of method used frequently now are anlysised and compared.

使其具有较高的准确性和实用性，且与船舶电网的实际情况更相吻合。

How to measure harmonic effectively is necessary for improvement and optimization. The surveillance equipment for power quality, which can analyze the harmonics become more and more important in the low-voltage system.

如何准确有效的检测谐波是改善和优化电网电能质量的前提，带有谐波分析功能的电能质量监控装置在低压系统中呈现越来越重要的地位。

This text neural network of this a the new method leads into to the charged barbed wire net harmonic value to measure, combining how the neural network set up the problem proceeded than for the research of the system.

针对神经网络的这一新方法引入到电网谐波幅值测量中，并就神经网络如何构建问题进行了较为系统的研究。

The pollution problem caused by harmonic sources to power system has become more and more serious. As traditional filter devices , passive filters can not only suppress the harmonic but also compensate the reactive power and are still a widely used measure for harmonic suppression.

摘 要 谐波源对电网的污染问题已经日益引起人们的关注，而无源滤波器作为传统的滤波装置，既可以滤除谐波，同时可以兼顾无功补偿的需要，目前仍是应用较为广泛的抑制谐波污染的措施。

Because the harmonic is harmful to the electric net and electrical equipment, it is very important to measure the harmonic accurately and restrain it. Some methods for harmonics measurement are proposed in these years.

由于谐波对电网及用电设备有诸多危害，准确测量谐波及抑制谐波就显得尤为重要。

This text neural network of this a thenew method leads into to the charged barbed wire net harmonic valueto measure, combining how the neural network set up the problemproceeded than for the research of the system.

针对神经网络的这一新方法引入到电网谐波幅值测量中，并就神经网络如何构建问题进行了较为系统的研究。

We choose the TMS320VC5402, digital signal processor, as the computing unit, filtering the sampled signal, truncating the harmonic whose frequence greater than 2500hz, then we use the window-interpolation FFT algorithm to get the refined frequence, amplitude, phase of harmonic in sampled voltage and current, other parameter such as harmonic ratio, active power, reactive power, power factor, three-phase unbalance can be also computed base one the result of window-interpolation FFT.

选用TMS320VC5402高速数字信号处理器作为运算单元，先对采样信号进行数字滤波，去除50次以上谐波分量，然后应用加窗双峰插值FFT算法计算电压电流的各次谐波频率、幅值和相位，以及谐波含有率、有功功率、无功功率、三相不平衡度等各项电能指标，同时利用锁相环电路硬件跟踪电网频率以减小采样失步度。

Harmonic detection technology is one of the key technologies determining the development of active power filter.

电网谐波检测技术是影响有源电力滤波发展的关键技术之一。

This paper presents a multi-objective method for reconfiguration of distribution network, which is based on Genetic Algorithm and Heuristics Algorithm.

提出一种基于遗传算法和启发式算法的方法来解决多目标配电网重构问题。

For a big chunk of credit-card losses; the number of filings (and thus charge-off rates) would be rising again, whether

年美国个人破产法的一个改动使得破产登记急速下降，而后引起了信用卡大规模的亏损。

Eph. 4:23 And that you be renewed in the spirit of your mind

弗四23 而在你们心思的灵里得以更新