电力系统保护与控制2017，Vol.45Issue(7)：1-5,5.DOI:10.7667/PSPC160544
基于牛顿—拉夫逊法的配电网电容电流测量新方法
A new capacitive current measurement method of distribution network based on Newton-Raphson method
摘要
Abstract
A capacitive current measurement method of the distribution network is proposed based on Newton-Raphson Method. In the system of arc suppression coil and damping resistance grounding system, the Newton-Raphson method is of effectiveness and fast convergence calculation. After the damping resistance is changed, finding that the inductance of arc suppression coil which can keep constant neutral point voltage unchanged. On this basis, it is determined that the phase angle is constant between detuning size and total conductance of the system and the phase diagram is constructed. The accurate calculation of the capacitance and the ground electric conduction is realized. Finally, the capacitive current measurement is realized. By building the simulation model in Matlab and simulation experiment, the correctness of the proposed measurement method and higher accuracy of the measurement results are verified.关键词
牛顿—拉夫逊法/中性点电压/相位关系/MatlabKey words
Newton-Raphson method/neutral voltage/phase relationship/Matlab引用本文复制引用
闫腾飞,李康,李晓波,丁欣..基于牛顿—拉夫逊法的配电网电容电流测量新方法[J].电力系统保护与控制,2017,45(7):1-5,5.基金项目
国家自然科学基金项目(51107143) （51107143）
This work is supported by National Natural Science Foundation of China (No. 51107143). （No. 51107143）
