摘要：牛頓-拉夫遜算法（NR法）是目前廣泛采用的電力系統(tǒng)潮流計算的計算機算法，P-Q分解法（PQ法）派生于以極坐標表示時的牛頓-拉夫遜算法。本文采用VC++6.0開發(fā)工具，使用C++語言實現(xiàn)了NR算法與PQ算法，并對實驗結果進行了比較，分析了兩種算法在實際應用中的差異，供使用時做出選擇。 敘詞：潮流計算，牛頓-拉夫遜法（NR法），PQ分解法，C++STL技術 Abstract：The Newton-Raphson method is widely used in power flow computation, the PQ decoupled method is derived from the polar coordinates expression of the Newton-Raphson method. This dissertation using VC++6.0 application and C++ programme language to realize these 2 methods, in order to recover the differentia between them and for a better choice in power flow computation. Keyword：power flow computation; Newton-Raphson method; PQ decoupled method; C++STL technique