English: With the increasing penetration of renewable energy in modern power systems, the strong uncertainty of renewable generation, together with the complex control dynamics introduced by inverter-interfaced devices, has led to increasingly pronounced nonlinear characteristics in power system behavior. For inverter-interfaced renewable energy power systems, the development of effective and rigorous nonlinear modeling, dynamic behavior analysis, and control methodologies has become a fundamental prerequisite for ensuring the secure and stable operation of power systems with high renewable penetration. This Special Issue focuses on recent advances in nonlinear theories and their applications in renewable energy power systems, aiming to promote the deep integration of nonlinear dynamics with power system analysis, reveal the underlying mechanisms of complex dynamic behaviors, and explore novel analysis and control approaches for future power systems.

中文: 随着可再生能源在现代电力系统中的渗透率不断提高，新能源发电的强不确定性，以及逆变器接入设备带来的复杂控制动态，使电力系统表现出越来越显著的非线性特性。对于逆变器接入的可再生能源电力系统，开发有效且严谨的非线性建模、动态行为分析及控制方法，已成为保障高渗透率电力系统安全稳定运行的基础。本专题聚焦非线性理论在可再生能源电力系统中的最新进展，旨在推动非线性动力学与电力系统分析的深度融合，揭示复杂动态行为的内在机制，并探索面向未来电力系统的新型分析与控制方法。