电工技术学报2016，Vol.31Issue(22)：178-185,8.
基于旋转因子变换插值的电压闪变检测算法
The Voltage Flicker Detection Algorithm Based on Rotation Factor Transforming Interpolation
李兰芳 1马明 1盛超 1王泽2
作者信息
- 1. 广东电网公司电力科学研究院广州 510080
- 2. 四川大学电气信息学院成都 610065
- 折叠
摘要
Abstract
The IEC 61000—4—15 standard flicker meter is based on amplitude modulation wave modulated model, which needs a series of complex processes, such as square, filtering and statistical processes. It is inconvenient to design digital flicker meter. From the mathematical model, this paper derived the flicker detection mechanism under IEC standard firstly, and provided a theoretical basis for the design and calibration of digital flicker meter. The flicker detection method based on rotation factor transforming interpolation was proposed, according to the existed problems in IEC flicker detection. Inter-harmonics parameters estimation with a high precision was achieved. Herein, rotation factor transferred the spectra, and the spectrum lines superposition interpolation suppress the spectrum leakage and eliminate the barrier effect. Thereby flicker parameters of inter-harmonics were calculated. As a result, the flicker detection process can be simplified and the detection precision can be improved by eliminating the effects of spectrum leakage. The proposed method can also calculate separated flicker contribution value of multiple amplitude modulation wave components. Simulation results and the measured data show the accuracy and effectiveness of the proposed method.关键词
电压闪变检测/旋转因子/变换插值/间谐波/频谱分析Key words
Voltage flicker detection/rotation factor/transforming interpolation/inter-harmonics/spectral analysis分类
信息技术与安全科学引用本文复制引用
李兰芳,马明,盛超,王泽..基于旋转因子变换插值的电压闪变检测算法[J].电工技术学报,2016,31(22):178-185,8.
