无法直接用串联和并联电路的规律求出整个电路的电阻时，称之为复杂电路。
Traditional grid-connected photovoltaic(PV) inverters are based on two or three-level inverter. Multilevel invert-er topology constrained by its complex circuit system is seldom used in PV system.
传统光伏并网逆变器多采用二电平逆变器,多电平逆变器受其复杂电路拓扑的制约在光伏系统中应用较少。
参考来源 - 一种新型多电平逆变器在光伏并网系统的应用·2,447,543篇论文数据，部分数据来源于NoteExpress
该算法能够实现对复杂电路的快速故障定位。
可看出，动态分析对于复杂电路是一种有效的方法。
Obviously, the dynamic analysis of complicated circuit in an effective method.
通过例题分析指出了在各种不同情况下如何利用此法分析求解复杂电路。
By means of analysis examples this method will point out how to analyse and how to solve the complicated circuit under different conditions.
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