电子学报2016，Vol.44Issue(10)：2370-2376,7.DOI:10.3969/j.issn.0372-2112.2016.10.013
一种基于序列和反褶序列精密初相位计算的新型正弦频率测量方法
A NoveI SinusoidaI Frequency Measurement Method Based on Precise CaIcuIation of I nitiaI Phase of Sequence and DeconvoIution Sequence
李军 1王越超 1李锋1
作者信息
- 1. 广东电网有限责任公司电力科学研究院，广东广州510080
- 折叠
摘要
Abstract
Sinusoidal frequency is one of the basic parameters.The high-accuracy sinusoidal frequency measurement technology has wide applications.But in the aspect of low-frequency sinusoidal frequency measurement,the current sinusoid-al frequency measurement technology usually has the defects of low accuracy under the environment of harmonic noise inter-ference.This paper proposes a novel sinusoidal frequency measurement method based on precise calculation of initial phase by means of sequence and deconvolution sequence.The measurement principles of precise initial phase sequence calculation and orthogonal mixing calculation for sequence phase measurement are analyzed.It is pointed out that the mixed-frequency interference is the main cause of the measurement error.By severely inhibiting the interference of mixed-frequency,and by calculating the full phase difference of sequence and deconvolution sequence,accuracy of sinusoidal frequency measurement is improved under the environment of harmonic noise interference.Mathematical calculation,simulation test and the physical experiment results also verify the correctness and reliability of the proposed method.关键词
反褶序列/精密初相位/序列全相位差/正交混频器/混频干扰频率/数字滤波Key words
deconvolution sequence/precise initial phase calculation/full phase difference of sequence/quadrature mixer/mixing interference frequency/digital filter分类
信息技术与安全科学引用本文复制引用
李军,王越超,李锋..一种基于序列和反褶序列精密初相位计算的新型正弦频率测量方法[J].电子学报,2016,44(10):2370-2376,7.
