为实现计算机电源谐波精确检测和分析,引入基于重新定位采样序列同步化的谐波分析算法,设计了一种新型谐波检测与分析系统.开展了新型谐波检测与分析系统的应用领域、工作原理以及结构的分析.为提高数据处理效率,运用线性重新定位采样序列的同步化方法以减小泄漏误差,并采用了实数序列的快速傅里叶变换分析谐波频谱.搭建了一台新型谐波检测与分析系统以进行实验研究.实验结果表明,该系统能够精确地检测和分析计算机电源谐波,具有较高的数据处理效率,在实际应用中运行稳定、可靠,为计算机电源谐波补偿提供了数据参考.%In order to detect and analyze the harmonic of computer power accurately, a harmonic-analyzing method based on the synchroni-zing-method of re-locating the sampling-sequence was introduced, a new harmonic detecting and analyzing system was designed. The application field, principle and contracture of the system were investigated. For the sake of improving the efficiency of data-processing, the linear synchronizing method of re-locating the sampling sequence was applied to reduce leakage-error and the real-sequence fast fourier transform was applied to analyze the frequency spectrum of the harmonic. A new detecting and analyzing system was established for experimental study. The experimental results show that this system working stably and reliably and processes data efficiently in practical application, it can detect and analyze the harmonic of computer power exactly, which provides reference data for harmonic compensation of computer power effectively.
展开▼
