摘要
为了提高市电谐波检测的速度,在传统DFT算法的基础上,利用DFT的周期性和对称性,对其实现方法进行了改进。运用基8FFT算法,简化了运算,提高了运算的实时性。结合ADI公司的ADuC841微控制器芯片的特性,提出了一种快速完成市电电网中谐波成分测量的方法。测试数据显示所提出的方法,具有足够的测量精度以及测量速度,并且所设计的系统具有使用方便、成本低等优点。
In order to improve the speed of city electronic harmonic detection, the realization method of DFT algorithm is improved by utilizing the periodicity and syranaetry of Db-T algorithm. The base-8 FFT algo- rithm, which can simplify the operation, enhances the realtimeness of computation. According to the characteristic of the ADuC841 micro-control chip by ADI Company, a fast harmonic component detection method for city electronic network is proposed. Detection data show that the proposed method is accurate in measurement and fast in speed, and the system designed has the advantages of convenience and low-cost.
出处
《电子科技》
2009年第8期7-9,24,共4页
Electronic Science and Technology
