Suppression strategies for grid-connected oscillations in floating photovoltaic power plant clusters
漂浮式光伏电站集群并网振荡抑制策略

摘要

随着漂浮式光伏电站集群规模不断扩大，并网振荡问题严重威胁电力系统稳定性与安全性。针对此，深入分析并网振荡产生根源，包括集群间交互作用、电力电子设备动态特性等因素。提出基于多频段协调控制的抑制策略，构建自适应控制模型，优化系统阻尼特性。通过仿真验证，该策略有效降低振荡幅值，提升系统动态稳定性。研究成果为漂浮式光伏电站集群稳定并网运行提供技术支撑，对推动清洁能源大规模应用具有重要意义。

Abstract

With the continuous expansion of floating photovoltaic (FPV) power plant cluster scale, grid-connected oscillation problems have posed significant threats to the stability and security of power systems. This study deeply analyzes the root causes of grid-connected oscillations, including interactive effects among clusters and dynamic characteristics of power electronic devices. A suppression strategy based on multi-band coordination control is proposed, involving the construction of an adaptive control model to optimize system damping characteristics. Simulation results verify that the strategy effectively reduces oscillation amplitude and enhances system dynamic stability. The research findings provide technical support for the stable grid-connected operation of FPV power plant clusters and hold important significance for promoting the large-scale application of clean energy.