朱帅,李晓波,程玉凯,李琦,薛馨.一种消弧线圈调谐新方法的研究[J].电测与仪表,2012,49(8):10-13. ZHU Shuai , LI Xiao-bo , CHENG Yu-kai , LI Qi , XUE Xin.Study on a New Tuning Method Based on Arc Suppression Coil[J].Electrical Measurement & Instrumentation,2012,49(8):10-13.
一种消弧线圈调谐新方法的研究
Study on a New Tuning Method Based on Arc Suppression Coil
Based on neutral-point earthling by arc suppression coil,the paper puts forward a new method of capacitance current measurement.Firstly,extremes method is used for the coarse tuning,the angle between zero sequence voltage and B,C line voltage can be measured when resonance occurs.Then,according to the phase relationship of zero sequence voltage and unbalance voltage,the angle between unbalance voltage and B,C line voltage can be calculated.After changing the inductance arbitrarily,the different angle between unbalance voltage and zero sequence voltage can be calculated easily.According to the resonant equivalent circuit,the capacitance voltage can be calculated quickly,capacitance and resistance will be acquired easily.Lastly,The method is demonstrated in MATLAB,it features few limitations,easy and reliable-operation and high precision.Compared with traditional tuning methods,the new method has the obvious advantages.
