基于数字锁相环同步采样的谐波检测

Detetion of Harmonic Waves Based on DPLL Synchronous Sampling

分析电力系统谐波检测频谱泄漏误差,介绍数字锁相环结构和工作原理,基于FPGA和VHDL语言的数字锁相环实现,应用于谐波检测,以提高谐波检测精度。

Error of detection harmoric waves for frequency spectrum leak was analysed in this paper,structure and the work principle of digital phase-locked loop was introduced,and realization of DPLL based on FPGA and VHDL,apple DPLL to detetion of harmonic waves for improving accyracy of detetion of harmonic waves.