ILU预处理Newton-Krylov方法的潮流计算 |
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引用本文:廖小兵,王文超,李奔.ILU预处理Newton-Krylov方法的潮流计算[J].计算技术与自动化,2015,(4):46-49 |
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中文摘要:由于电力系统修正方程组具有高维、稀疏的特点,本文提出将预处理Krylov子空间方法应用于潮流修正方程组的求解,形成预处理Newton-Krylov的潮流计算方法。结合ILU预处理方法,比较了最常用的3类Newton-Krylov方法求解潮流方程的计算效果。通过对 IEEE30、IEEE118、IEEE300 和3个Poland大规模电力系统进行潮流计算,结果表明:3类Newton-Krylov方法是电力系统潮流计算的有效方法,呈现出良好的收敛特性和计算效率。 |
中文关键词:潮流计算 修正方程组 ILU预处理 Newton-Krylov方法 |
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Newton-Krylov Methods with ILU Preconditioner for Power Flow Calculation |
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Abstract:Due to the high-dimensional and sparse characteristics of correction equations in power systems, the preconditioned Krylov subspace methods were applied to solve the correction equations, thus forming the Newton-Krylov power flow calculation methods. With the ILU preconditioner, this paper compared the computational efficiency of three kinds of the most commonly used Newton-Krylov methods for solving power flow equations. Through power flow calculation of IEEE30, IEEE118, IEEE300 and 3 Poland large-scale power systems, the results show that the three Newton-Krylov methods are effective methods for power flow calculation, which have good convergence property and computational efficiency. |
keywords:power flow calculation correction equations ILU preconditioner Newton-Krylov methods |
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