The first order Taylor series expansion replaces the non-linear equation used in solving this plane, and thus simplifies the algorithm. 通过求解由一阶泰勒展开式得到的线性方程组，避免了为求解此平面而求解非线性方程组最小二乘解的过程，使算法简化。
The node current-injection model based power flow equations are nonlinear ones, which can be solved by gradient method to deal with multi-loop or multi-source network. 文中的潮流方程是基于节点注入电流模型的非线性方程组，通过梯度法求解，可以解决具有多回路和多电源的配电网潮流。
