摘要
光伏虚拟同步发电机PV-VSG是虚拟同步发电机技术在光伏发电系统的典型应用,通过模拟同步发电机的转子摆动特性,提高了系统抗干扰能力,但同时也使得系统容易发生有功功率振荡问题。以PV-VSG为研究对象,综合考虑模型的精确度和复杂程度,建立PV-VSG并网的小信号模型。通过PSCAD/EMTDC仿真平台验证了小信号模型的正确性,为PV-VSG系统小信号稳定性分析提供依据。
Photovoltaic virtual synchronous generator(PV-VSG)is a typical application of virtual synchronous generator(VSG)in photovoltaic systems.It improves the anti-interference of the system by simulating the rotor swing characteristics of synchronous generators.Capability,but at the same time makes the system prone to active power oscillations.In this paper,PV-VSG is taken as the research object,and the accuracy and complexity of the model are considered.The small signal model of PVVSG grid-connected is established.The correctness of the analysis of the resonance mechanism is verified by the RTDS simulation platform and can provide a basis for system small signal stability analysis.
作者
李丝雨
赵永熹
王华昕
刘美娜
LI Siyu;ZHAO Yongxi;WANG Huaxin;LIU Meina(Shanghai Electric Power University,Shanghai 200090,China)
出处
《集成电路应用》
2020年第5期64-66,共3页
Application of IC
基金
上海市教育系统科技创新课题项目。
关键词
光伏虚拟
同步发电机
小信号
建模
稳定性
photovoltaic virtual
synchronous generator
small signal
modeling
stability
