鲁棒潮流与三相潮流分析
Robust Power Flow and Three-Phase Power Flow Analyses
摘要：
鲁棒性仿真对于输配电网的可靠运行和规划至关重要。目前，存在不同的方法用于传输（潮流）和配电网（三相潮流）的稳态分析。由于问题的非线性性质，交流（AC）潮流和三相潮流分析难以确保收敛到正确的物理解，特别是从任意初始条件，或当评估电网中的变化（例如应急）时。在本文中，我们描述了我们的等效电路公式化方法与电流和电压变量，模型的正序网络的输电网和三相网络的配电网不失一般性。所提出的电路模型和形式主义，使电路仿真技术的扩展和应用，以解决具有良好的鲁棒性的收敛的稳态解。正序传输和三相配电系统的例子，包括实际的75k+节点东部互联传输测试用例和8k+节点分类分布测试用例，从任意的初始猜测来证明我们的方法的有效性。
英文摘要：
Robust simulation is essential for reliable operation and planning of transmission and distribution power grids. At present, disparate methods exist for steady-state analysis of the transmission (power flow) and distribution power grid (three-phase power flow). Due to the non-linear nature of the problem, it is difficult for alternating current (AC) power flow and three-phase power flow analyses to ensure convergence to the correct physical solution, particularly from arbitrary initial conditions, or when evaluating a change (e.g. contingency) in the grid. In this paper, we describe our equivalent circuit formulation approach with current and voltage variables that models both the positive sequence network of the transmission grid and three-phase network of the distribution grid without loss of generality. The proposed circuit models and formalism enable the extension and application of circuit simulation techniques to solve for the steady-state solution with excellent robustness of convergence. Examples for positive sequence transmission and three-phase distribution systems, including actual 75k+ nodes Eastern Interconnection transmission test cases and 8k+ nodes taxonomy distribution test cases, are solved from arbitrary initial guesses to demonstrate the efficacy of our approach.
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