摘要
在分析VSC基本原理的基础上建立了采用SPWM控制的基于VSC的光伏并网系统暂态数学模型,分析了其开关特性和暂态运行机理;并通过仿真得到了光伏并网系统输送功率突变和发生短时故障时的暂态运行特性,为进行基于VSC的光伏并网系统深入暂态分析建立了基础。
Based on analyzing the fundamental principle of VSC, the dynamic mathematic model of VSC system with SPWM control was founded in this paper. Besides, switch characteristic and dynamic mechanism were analyzed. The simulation results of dynamic operation characteristic that transmission system has a sudden power change or a short time fault showed that the theory analysis is correct, it is useful base for the further dynamic analysis of photovoltaie grid-connected system based on VSC.
出处
《太阳能学报》
EI
CAS
CSCD
北大核心
2007年第7期715-720,共6页
Acta Energiae Solaris Sinica
基金
国家自然科学基金项目(50577018
50677018)
关键词
电压源换流器
光伏并网系统
暂态特性
仿真
voltage source converter
photovoltaic grid-connected system
dynamic characteristics
simulation
