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A non-interior point approach to optimum power flow solution

机译:一种非内点方法来实现最佳潮流解决方案

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摘要

A formulation of the optimum power flow problem using a smoothing variable based non-interior point method is presented in this paper. Here a combination of regular smoothing method and Jacobian smoothing method is used. The proposed method makes use of the slack variables to handle the inequality constraints, Dual variables to form the Lagrangian function and employs the KKT optimality condition and Newton's method to solve the resultant equations. But instead of the logarithmic barrier to handle the complementary condition, the proposed method uses a smoothing function and thereby overcomes the limitation of the variables to be in the interior of the feasible space through all iterations. Also, the smoothing parameter is treated as a variable of the original problem thus avoiding the necessity of heuristics in updating the value of the smoothing parameter, which approaches zero as the convergence is approached.
机译:本文提出了一种基于平滑变量的非内点法,用于求解最优潮流问题。在此,使用常规平滑方法和雅可比平滑方法的组合。所提出的方法利用松弛变量来处理不等式约束,使用对偶变量来形成拉格朗日函数,并采用KKT最优性条件和牛顿法来求解所得方程。但是,代替对数障碍来处理互补条件,该方法使用了平滑函数,从​​而通过所有迭代克服了变量位于可行空间内部的限制。而且,平滑参数被视为原始问题的变量,因此避免了在更新平滑参数的值时启发式更新的必要性,随着趋近收敛,该值接近零。

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