混合策略改进麻雀算法的PSS 参数优化

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中图分类号: TB9; TM711; TP18 文献标志码: A 文章编号: 1674–5124(2025)05–0170–10
Abstract: To solve the difficulty in setting PSS parameters and the problem that traditional intelligent optimization algorithms are prone to fall into local optimum during the optimization process, which leads to the decrease of convergence rate, a hybrid strategy is used to improve the SSA algorithm to optimize PSS parameters. First, a tent chaotic map is used to optimize the initial population and enhance the diversity of the ethnic groups. Cauchy mutation, sine-cosine strategy, and opposition-based learning (OBL) improve the convergence rate. Then six test functions are optimized. The improved SSA is compared with PSO, GWO, SSA, and SSSA to verify that the improved SSA algorithm has better convergence speed and stability. Finally, the enhanced SSA algorithm is applied to the PSS parameter optimization of a single-machine infinite-bus system and a four-machine two-area system. Compared with other algorithms, it is verified that the improved
SSA has better robustness and faster convergence in PSS parameter optimization.
Keywords: power system stabilizer; low-frequency oscillation; improved sparrow algorithm; parameter optimizatio
0 引 言
电网规模日益扩大,大量的高增益励磁调节器的投入使用,给电力系统带来系统受扰后阻尼不足的问题,从而引发低频振荡[1]。(剩余10755字)