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Online coordination of directional overcurrent relays using binary integer programming

机译：使用二进制整数编程在线协调定向过流继电器

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摘要

This work presents a binary programming model for online coordination of directional overcurrent relay problems in interconnected power distribution and subtransmission systems. The proposed model considers discrete time dial and pickup current settings as in microprocessor-based relays. The coordination problem is solved for every topological change in the network and whose optimized settings are remotely adjusted on each relay through a SCADA system, enhancing the speed and sensitivity of the protection system. A pre-processing step is performed to ensure that the operation time of each relay be below the melting curve of the protected cable. Computational results for the binary programming model solved by CPLEX optimization package are compared to heuristic-based techniques. The simulation results indicates that our approach is suitable for online applications, since an optimal solution can be found in reduced times. (C) 2015 Elsevier B.V. All rights reserved.
机译：这项工作提出了一种二进制编程模型，用于在线互连的配电和输电系统中的方向性过流继电器问题的在线协调。所提出的模型考虑了基于微处理器的继电器中的离散时间拨号和拾取电流设置。解决了网络中每个拓扑变化的协调问题，并通过SCADA系统在每个继电器上远程调整了优化设置，从而提高了保护系统的速度和灵敏度。执行预处理步骤以确保每个继电器的操作时间低于受保护电缆的熔化曲线。将CPLEX优化包解决的二进制编程模型的计算结果与基于启发式的技术进行了比较。仿真结果表明，我们的方法适合在线应用，因为可以在更短的时间内找到最佳解决方案。 （C）2015 Elsevier B.V.保留所有权利。

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