电力系统谐波测量中频谱泄漏问题的研究
Research of the Problem of Spectrum Leakage in Harmonics Measurement of Power System
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摘要: 针对电力系统谐波测量方法存在的问题,提出了一种基于锁相倍频采集方法。该方法通过锁相环对电力波形进行实时跟踪,既解决了频谱泄漏对谐波测量精度的影响,又实现了快速、准确、实时性的测量。Abstract: Aiming at the existing problem in harmonics measurement of power system,the paper presented a collecting method based on frequency multiplication phase-locked. Using phase-locked loop to track power wave,this method not only resolved the impact of spectrum leakage on precision of harmonics(measurement),but also realized quick,accurate and real-time measurement.