南方电网技术2025，Vol.19Issue(12)：11-21,11.DOI:10.13648/j.cnki.issn1674-0629.2025.12.002
多控制模式变流器异构系统的暂态同步稳定分析
Transient Synchronous Stability Analysis of Heterogeneous Systems with Multiple Control Mode Converters
摘要
Abstract
The transient synchronous stability issue of voltage source converters is a typical nonlinear problem,which especially exhibits complex higher-order and interacting coupling characteristics in multi-converter systems.To clarify the interactive coupling characteristics and transient instability mechanism of the heterogeneous system with multiple control mode converters,a dual-converter hybrid grid-connected system consisting of grid-following voltage source converter(GFL-VSC)and grid-forming voltage source converter(GFM-VSC)is studied.Firstly,the mathematical modeling of the hybrid parallel system for transient stability analysis is developed using phasor analysis,and the mechanism of interactive coupling between two inverters is revealed.Then,by introducing three-dimensional surfaces and contour lines,a visual stability analysis method is proposed,which can intuitively describe the system balance relationship.Furthermore,the effects of the active power reference and reactive power control circuit of GFM-VSC and the current reference of GFL-VSC on transient stability are revealed in detail.The results show that the reactive power control introduction of GFM-VSC deteriorates the system balance relationship.The stability of the system can be improved by decreasing the active current injection of GFL-VSC and increasing its reactive current injection,or by decreasing the active power reference of GFM-VSC during grid faults.Finally,the hardware-in-the-loop experiments verify the correctness of the theoretical analysis.关键词
跟网型控制/构网型控制/异构系统/暂态同步稳定Key words
grid-following control/grid-forming control/heterogeneous system/transient synchronous stability分类
信息技术与安全科学引用本文复制引用
王顺亮,蒋奥博,马俊鹏,刘天琪,郑俊..多控制模式变流器异构系统的暂态同步稳定分析[J].南方电网技术,2025,19(12):11-21,11.基金项目
国家自然科学基金资助项目(52207216). Supported by the National Natural Science Foundation of China(52207216). （52207216）
