石油电动钻机井场电网有源电力滤波器的改进研究

An improved parallel active power filter used for electric drilling rigs in oilfield wellsite

针对电压波形畸变严重的石油电动钻机井场电网,提出了一种并联型有源电力滤波器(PAPF)的改进方法,采用直接功率控制(DPC)中的滞环控制方法和带基波提取及周期平均值滤波器(CMF)的改进α-β检测方法提高井场电网性能。仿真实验结果表明,改进的PAPF可以有效抑制井场电网的无功和谐波,具有更好的动态性能。

Due to the serious distortion of voltage waveform of the power network in oilfield wellsite,an improved parallel active power filter( PAPF) is designed,which uses an improved α-β detecting method with hysteresis control of direct power control( DPC), fundamental wave extraction and a cycle average filter( CMF) to improve the performance of the power network in oilfield wellsite. Simulation experiments show that the improved PAPF can effectively inhibit the reactive power and the harmonics of the electric network, which can make the electric network have better dynamic performance.