光伏并网逆变器的非线性动力学研究  

on-linear Dynamics Model and Chaotic Behavior of the Single-phase Full Bridge Photovoltaic Grid-connected Inverter

作　　者：廖志贤[1] 罗晓曙[1] 黄国现[1] 

机构地区：[1]广西师范大学电子工程学院,广西桂林541004

出　　处：《广西师范大学学报（自然科学版）》2013年第4期1-6,共6页Journal of Guangxi Normal University:Natural Science Edition

基　　金：国家自然科学基金资助项目(11262004);广西科学研究与技术开发计划(桂科攻1348017-2)

摘　　要：本文首先阐述了单相全桥光伏并网逆变器的电路模型及其工作原理,根据基尔霍夫定律及理想运算放大器的特性,建立了单相全桥光伏并网逆变器电路模型的6.5维分段光滑状态方程组,给出了详细的方程组推导过程。然后利用四阶龙格库塔法对所建立的状态方程组进行求解,对其非线性动力学性质进行了初步研究,发现在一定的光伏阵列输出电压范围内,系统会产生混沌行为。In this paper,circuit the of single-phase full bridge photovoltaic （PV） grid-connected inverter model and its working principle are introduced. According to Kirchhoff＇s law and the characteristics of ideal operational amplifier ,a 6.5-dimensions piecewise smooth state equation for the circuit model of sin- gle-phase full bridge photovoltaic （PV） grid-connected inverter is set up,the derivation of the equations is presented in detail. Then using the fourth order Runge Kutta method to solve the established state e- quation ,the nonlinear dynamics properties of this modeling is investigated preliminarily. The research re- sults show that this circuit system can produce chaotic behavior under certain range of pv array output voltage.

关 键 词：光伏并网逆变器 分段光滑状态方程 非线性动力学 混沌行为 

分 类 号：O545[理学—物理]