新型电力系统安全稳定运行是支撑能源绿色低碳转型和保障电力可靠供应的重要基础。随着高比例新能源、电力电子装备、储能及分布式资源广泛接入，系统稳定的物理基础、动态机理、分析方法和控制体系均发生了深刻变化，传统安全稳定分析与控制模式已难以充分适应新的形势。围绕高比例新能源接入条件下新型电力系统安全稳定运行问题构建了“挑战分析-研究框架-工程实践”的总体论述逻辑。首先，从稳定物理基础、建模仿真分析和稳定控制适配3个方面梳理了高比例新能源接入条件下新型电力系统安全稳定运行面临的主要挑战。其次，提出了以坚强的物理基础、科学的系统运行管理和可靠的扰动防御3道防线为核心的安全稳定控制研究框架。然后，结合南方电网在网架优化、建模仿真、特性认知、智能分析计算、协同控制以及安全稳定控制市场机制与政策支持等方面的探索与实践，归纳了新型电力系统安全稳定控制体系的实现路径。最后，对在线自适应控制、全景感知与混合仿真、市场机制与协同支撑等发展方向进行了展望。

The secure and stable operation of new power systems is essential for supporting the green and low-carbon energy transition and ensuring reliable power supply. With the large-scale integration of high-penetration renewable energy, power-electronics-based equipment, energy storage, and distributed resources, the physical basis for maintaining power-system stability, dynamic mechanisms, analysis methods, and control paradigms have changed substantially. As a result, conventional security and stability analysis and control approaches are becoming difficult to fully adapt to the new situation. conditions. Focusing on the secure and stable operation of new power systems under high penetration renewable energy, this paper develops an overall review framework covering challenge analysis, research framework, and engineering practice. Firstly, the major challenges are summarized from three perspectives: the evolution of the physical basis for stability, modeling and simulation analysis, and the adaptability of stability control. Then, a security and stability control research framework is proposed, centered on a strong physical basis, scientific system operation management, and reliable three lines of defense against disturbances. Based on the explorations and practices of China Southern Power Grid in grid structure optimization, modeling and simulation, stability characteristic analysis, intelligent analysis and computation, coordinated control, and market mechanisms and policy support for security and stability control, the practical implementation path of the security and stability control system for new power systems is summarized. Finally, future development directions are prospected, including online adaptive control, panoramic perception and hybrid simulation, market mechanisms, and coordinated support.