Power Losses Minimization considering Small-Signal Stability Constraint

W. Peres, F. C. Coelho, Junior N. N. da Costa
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Abstract

This paper proposes an optimization approach to solve the Small-Signal Constrained Optimal Power Flow (SSOPF) in transmission systems. The main goal is to minimize the active power losses taking the minimum damping ratio in closed-loop operation as a small-signal stability constraint. The Particle Swarm Optimization (PSO) is used and its individuals are evaluated through a conventional power flow tool and a modal analysis tool for small-signal stability assessment. Results are obtained for the New England test system and validated through time-domain simulations.
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考虑小信号稳定性约束的功率损耗最小化
提出了一种求解输电系统小信号约束最优潮流的优化方法。其主要目标是以最小的闭环阻尼比作为小信号稳定性约束,使有功功率损耗最小化。采用粒子群算法(PSO),通过传统潮流分析工具和模态分析工具对其个体进行评估,进行小信号稳定性评估。在新英格兰测试系统中得到了结果,并通过时域仿真进行了验证。
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