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首页> 外文期刊>IEEE transactions on industrial informatics >Optimal Configuration of Interdependence Between Communication Network and Power Grid
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Optimal Configuration of Interdependence Between Communication Network and Power Grid

机译：通信网络与电网相互依存的优化配置

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摘要

Smart grid is a cyber-physical system with interdependent power grid and communication network. Such interdependence make the smart grid fragile against cascading failures, where an initial failure in communication network may lead to further failures in power grid, and vice versa. We prevent such inter-network cascading failure by stopping an initial failure from propagating. This is achieved by providing a sufficient number of power-disjoint communication routes between power nodes and control center. The number of power-disjoint routes is a robustness metric. We aim to maximize robustness by configuring the interdependence relationship between power grid and communication networks. Such relationship indicates which power node supplies energy to which communication node, and which communication route is used to connect which power node to the control center. Following Menger's Theorem, we transform such configuration problem into a Maxflow problem and solve it using the simplex algorithm. We have evaluated the proposed method through extensive simulations. The results confirm the optimality and computational efficiency of the proposed method. The number of power-disjoint routes increases with an increase in the network size, but can never exceed the number of node-disjoint routes for a same network.
机译：智能电网是具有相互依赖的电网和通信网络的网络物理系统。这种相互依赖关系使智能电网易受级联故障的影响，在级联故障中，通信网络的初始故障可能导致电网进一步故障，反之亦然。我们通过阻止初始故障的传播来防止此类网络间的级联故障。这是通过在电源节点和控制中心之间提供足够数量的电源断开通信路径来实现的。不相交的路由数是鲁棒性指标。我们旨在通过配置电网与通信网络之间的相互依赖关系来最大化鲁棒性。这种关系指示哪个功率节点向哪个通信节点供应能量，以及哪个通信路径用于将哪个功率节点连接到控制中心。遵循Menger定理，我们将这种配置问题转换为Maxflow问题，并使用单纯形算法对其进行求解。我们已经通过广泛的仿真评估了所提出的方法。结果证实了该方法的最优性和计算效率。与功率不相交的路由数量随网络规模的增加而增加，但绝不能超过同一网络的节点不相交路由的数量。

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