摘要： 在阐述某嵌入式系统——智能断路器上实现谐波分析功能的基础上,基于FFT算法,提出了新型谐波分析算法。经实验仿真证明,改进后算法的计算精度较高,资源需求少,运算速度快,完全达到了分析高次谐波的要求,并在同类算法中占据优势。

关键词: 谐波分析, 改进FFT, 波形折叠, 判过零点

Abstract: As an accessional function of intelligent circuit breaker, which is one of embedded system, harmonic analysis is discussed in this paper. An example of simulation is given and validates higher calculation accuracy, faster calculation rate and lower request for resources. The new algorithm is fit in with analyzing high order harmonics and is superior to the harmonic analysis algorithms in the same term.

中图分类号: 

• TM561