Design of a New Harmonic Detector for Three-phase System 一种新型三相系统谐波检测装置的设计
Their performances compared in terms of processing time and adaptability to environment change. According to the results, energy detector in the time domain and harmonic set detector in the frequency domain are recommended. 通过对比各种检测器的仿真结果,同时比较检测器在处理时间上和对环境变换的适应性上的性能,我们推荐在时域分析中采用能量检测器,在频域分析中采用谐波集检测器。
At present, harmonic is detected generally by fast Fourier algorithm for harmonic detector in market. 目前市面上的谐波检测仪大部分采用快速傅立叶算法检测谐波。
Considering the features of electric railway control system, the harmonic detector is designed based on a hardware structure of 3-CPU. 同时针对电气化铁路监控系统的特点,本文设计的电网谐波检测仪硬件采用三CPU的结构。
In this background, this paper studies the harmonic detector. 本文以此为背景,对谐波探测技术展开相关研究工作。
This harmonic detector is able to complete synchronous sampling of the three-phase voltage and three-phase current. Meanwhile, it shows great computing power and has the function of real-time data processing and measurement results transmission. 该谐波检测仪能够完成三相电压、三相电流的同步采样,同时具有较强的运算能力,具有实时处理数据并实时传输测量结果的功能。
In nature, objects with metal junction has nonlinear characteristics, it will produce harmonic waves and then radiate it when receives electromagnetic radiation, harmonic detector receives the harmonic waves to detect targets. 金属结目标的非线性特性,其对入射电磁波再辐射过程中会产生谐波输出。谐波探测器通过接收这种谐波分量实现对目标的检测。