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首页> 外文期刊>Electric power systems research >An improved simulated annealing-linear programming hybrid algorithm applied to the optimal coordination of directional overcurrent relays
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An improved simulated annealing-linear programming hybrid algorithm applied to the optimal coordination of directional overcurrent relays

机译：一种改进的模拟退火-线性规划混合算法，用于定向过流继电器的最优协调

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摘要

The coordination of directional overcurrent relays (DOCRs) is a constrained and nonlinear optimization problem which consists in finding suitable plug and time dial settings so that the relay operational times are minimized, keeping selectivity and sensitivity characteristics. Recently, several efforts have been devoted to automate the coordination of DOCRs. This paper proposes a hybrid technique entitled simulated annealing linear programming (SA-LP) to achieve the optimal coordination of DOCRs. Five test-systems (IEEE-3, IEEE-6, IEEE-8, IEEE-15 and IEEE-30 bus) are used to verify the effectiveness of the proposed technique. Results obtained with the SA-LP are confronted against other optimization techniques reported in specialized literature, under identical conditions. The proposed approach presented good quality solutions, low computational processing times and great convergence towards the optimum solution, presenting an advantage over adaptive coordination tendency by enhancing monitoring, communication capabilities and grid control.
机译：定向过流继电器（DOCR）的协调是一个受约束的非线性优化问题，其中包括寻找合适的即插即用设置，以便使继电器的工作时间最小化，并保持选择性和灵敏度特性。近来，已经致力于自动化DOCR的协调的若干努力。本文提出了一种混合技术，称为模拟退火线性规划（SA-LP），以实现DOCR的最佳协调。五个测试系统（IEEE-3，IEEE-6，IEEE-8，IEEE-15和IEEE-30总线）用于验证所提出技术的有效性。在相同条件下，使用SA-LP获得的结果与专业文献中报道的其他优化技术相抵触。所提出的方法提出了高质量的解决方案，较低的计算处理时间以及朝向最佳解决方案的极大收敛性，通过增强监视，通信能力和网格控制，表现出优于自适应协调趋势的优势。

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