摘要
本文研究了电力系统不对称谐波(及基波)潮流的三相计算方法。首先,确定了电气化铁道谐波源注入电力系统谐波电流的计算公式。在此基础上,用三相P-Q分解法建立了电力系统不对称基波潮流计算的数学模型,提出了通过解三相线性节点方程[I_n]=[Y_n][U_n]计算电力系统谐波潮流的方法。根据本文的数学模型。作者编制了相应的计算程序,并针对河南某地区电网进行了计算,得出了较为满意的结果。
The three phase calculating method of unsymmetrical harmonics tidal currents has been studied in this paper. Primarily, it gives the source of harmonics currents of electric railway, then, the calculating equations of harmonics currents in the power system and uses three phase P-Q analysis methd to build up the arithmatical model of unsymmetrical fundamental tidal current. It suggests the calculating method of unsymmetrical harmonics tidal currents through the solution .of three phase linear nodes equation [I_n]=[Y_n][U_n]. According to the arithmatical model, the authors program the corresponding calculating procedure and apply it to a local network in Henan and get a comparatively satisfied result.
