English: With the continuous advancement of the low-carbon energy development, the installed capacity of renewable power generation equipment (RPGE) has experienced fast growth. The high penetration of renewable energy, together with high penetration of power electronic equipment (namely, "double-high"), has been altering the steady-state and transient characteristics of RPGE in a profound way, resulting in the different risk of instability. These stability issues will seriously affect the consumption of renewable energy and threaten the safe supply of electricity. On the one hand, the dominant factors and underlying mechanisms in both small-signal and large-signal stability need to be investigated. One the other hand, some advanced power quality control strategies recently pave the way for improving the grid-connected environment. To this end, this Special Session aims to collect the latest theoretical and technological ideas in the field of grid-connected stability and advanced power quality control, which can facilitate the development and deployment of renewable energy conversion system.

中文: 随着低碳能源发展的持续推进，新能源发电设备（RPGE）装机容量呈现快速增长态势。高比例新能源与高比例电力电子设备（即"双高"）的深度融合，正深刻改变新能源发电设备的稳态与暂态特性，引发新型失稳风险。这些稳定性问题将严重影响新能源的消纳能力，威胁电力供应安全。一方面，需要深入研究小干扰稳定性和大扰动稳定性的主导因素与作用机理；另一方面，近年来先进电能质量管控技术为改善并网环境提供了新的途径。为此，本专题旨在汇集并网稳定性分析与先进电能质量控制领域的最新理论方法和技术思路，以推动新能源变换系统的创新发展与工程应用。