基于自适应提升格式的暂态电能质量扰动检测及定位

Detection and Location of Transient Power Quality Disturbances Based on Adaptive Lifting Scheme

为了进一步提高暂态电能质量扰动检测及定位的准确率,该文分析了暂态电能质量扰动的相关性,选择预测和更新算子,实现对扰动信号的自适应检测;利用MATLAB对电压骤升、电压骤降、电压瞬时中断、脉冲暂态和振荡暂态等暂态电能质量问题进行仿真研究,仿真结果表明:该方法能快速检测出上述5种暂态电能质量扰动。研究结果为电能质量分析仪器设计提供了理论支持。

In order to further improve the accuracy of detecting and locating the transient power quality,this paper analyses the correlation of the transient power quality disturbances and determines the prediction and updated parameters of lifting scheme.The transient power quality problems such as voltage swell,voltage sag,voltage interruption,impulsive transient and oscillatory transient are simulated using MATLAB.The simulation results show that the method can accurately detect the above-mentioned five kinds of transient power quality disturbances.The results can give theoretical support to the design of power quality analyzer.