基于可调Q因子的煤矿井下电力系统谐波检测与抑制系统设计

针对谐波对煤矿井下电力系统产生严重扰动并且还耗费较多无功等问题,同时结合基于瞬时无功功率理论的谐波检测方法在三相四线制电路的应用局限性,采用可调Q因子小波变换改进瞬时无功功率理论对谐波总含量进行检测。运用MATLAB/SIMULINK创建三相四线制有源滤波器的仿真模型,将其使用到有源滤波器的谐波检测模块中,设置相应的仿真参数,根据仿真结果分析该有源滤波器的谐波抑制效果,很好的改善了煤矿电能质量。

Underground Coal Mine Power System Harmonic Detection and Suppression System Design Based on Adjustable Q factor

For harmonic coal mine power system not only produces severe disturbances, but also spend more reactive and harmonic detection method for instantaneous reactive power theory based on the application of the limitations of the three-phase four-wire circuit, with adjustable Q factor wavelet transform improved instantaneous reactive power theory total harmonic content is detected. Using MATLAB / SIMULINK simulation model to create three-phase four-wire active filter, which was used to active filter harmonic detection module, set the appropriate simulation parameters, the active filter harmonic analysis based on simulation results wave suppression effect, a very good improvement of coal mine power quality.