电力系统保护与控制Issue(5)：1-5,5.
光伏并网系统小信号动态建模及控制参数灵敏度分析
Small-signal dynamic modeling of grid-connected PV system and eigenvalue sensitivity analysis of the controller parameters
周林 1李怀花 1张林强 1廖波 1龙崦平 1杜金其1
作者信息
- 1. 重庆大学输配电装备及系统安全与新技术国家重点实验室，重庆 400030
- 折叠
摘要
Abstract
The ideal inverter models are currently used to analyze the small-signal stability of the grid-connected PV system, which did not consider the impact of the control parameter. To analyze the dynamics of the photovoltaic grid-connected system, a complete small-signal model of two-stage three-phase grid-connected PV system is developed. This integrated model consists of two sub-models:one is the model of main circuit, the other is the model of double closed-loop control system of MPPT and voltage and current. Based on the above model, the parameters of the control system on the grid system eigenvalue sensitivity are calculated, and the impact of each controller parameters on the system small signal stability is analyzed. The analysis result shows that the small signal stability of the system can be improved by adjusting the controller parameters, and provides a theoretical basis for optimization design of the controller.关键词
光伏并网系统/小信号动态模型/控制参数/特征值灵敏度/小干扰稳定性Key words
photovoltaic grid-connected system/controller parameters/small-signal dynamic model/eigenvalue sensitivity/small-signal stability分类
信息技术与安全科学引用本文复制引用
周林,李怀花,张林强,廖波,龙崦平,杜金其..光伏并网系统小信号动态建模及控制参数灵敏度分析[J].电力系统保护与控制,2013,(5):1-5,5.
