Session 4: Stability and Intelligent Control of New Power Systems with High Penetration of Power Electronics

Stability and Intelligent Control of New Power Systems with High Penetration of Power Electronics
“高比例电力电子装备接入下新型电力系统的稳定性与智能控制”

The ongoing energy transition is reshaping power systems at an unprecedented pace. With the large-scale integration of wind and solar generation, the rapid growth of energy storage, and the expanding deployment of HVDC links and electrified loads, modern power grids are evolving into new power systems characterized by a high penetration of power electronic equipment. This evolution fundamentally changes the system-level stability landscape: rotational inertia keeps declining, system strength varies significantly across regions, and stability issues are no longer dominated by rotor-angle dynamics alone.
New stability phenomena are emerging at the system level, including wide-frequency oscillations, control interactions among multiple stations and multiple time scales, transient instability under weak grid conditions, and stability challenges in AC/DC hybrid receiving-end systems. These issues often involve coupled interactions among generation, transmission and load sides, and therefore cannot be adequately addressed by device-level studies alone. At the same time, wide-area measurement, data-driven modeling and artificial intelligence are providing new opportunities for system-level stability monitoring, assessment and control.

随着风电、光伏大规模并网，储能快速增长，直流输电与电气化负荷持续扩大，现代电网正加速演化为高比例电力电子装备接入的新型电力系统。这一变化从根本上改变了系统层面的稳定形态：系统惯量持续下降，各地区电网强度差异显著，稳定问题已不再局限于传统的功角稳定范畴。
一批新型稳定问题正在系统层面显现，包括宽频带振荡、多场站与多时间尺度控制交互、弱电网条件下的暂态失稳，以及交直流混联受端系统的稳定问题等。这类问题往往涉及源、网、荷多侧的耦合作用，仅靠设备层面的研究难以充分解决。与此同时，广域测量、数据驱动建模与人工智能技术的发展，也为系统级稳定监测、评估与控制提供了新的途径。

Topics (Including but not limited to)

• 1. Stability mechanisms and system-level analysis of new power systems with high penetration of power electronics;
  高比例电力电子接入下新型电力系统的稳定机理与系统级分析方法
• 2. Frequency stability and inertia support strategies in low-inertia power systems;
  低惯量电力系统的频率稳定特性与惯量支撑策略
• 3. Voltage stability and reactive power support in weak grids and receiving-end systems;
  弱电网及受端系统的电压稳定与无功支撑
• 4. Wide-frequency oscillation and multi-timescale control interactions across source-grid-load;
  源-网-荷多侧宽频振荡与多时间尺度控制交互
• 5. Transient stability analysis and emergency control of power systems with renewable generation;
  高比例新能源电力系统的暂态稳定分析与紧急控制
• 6. Stability and coordinated control of AC/DC hybrid power systems and DC grids;
  交直流混联系统及直流电网的稳定性与协调控制
• 7. Grid-forming control from a system perspective: system strength, interaction and deployment;
  系统视角下的构网型控制：系统强度、交互影响与配置方法
• 8. Coordinated optimization of renewable energy, energy storage and flexible loads for system stability;
  面向系统稳定的新能源、储能与柔性负荷协同优化
• 9. Data-driven and AI-enabled stability assessment, early warning and intelligent control;
  数据驱动与人工智能驱动的稳定评估、预警及智能控制
• 10. Stability-oriented unit commitment, dispatch and operational planning under uncertainty;
  不确定性环境下面向稳定性的机组组合、调度与运行规划
• 11. Resilience and security of power systems against extreme events and cyber-physical threats.
  电力系统应对极端事件与信息物理威胁的韧性及安全防御