交错并联式并网MATLAB仿真系统研究  

Simulation system of interleaved photovoltaic grid-connected based on MATLAB

作　　者：李岩[1] 李铁栓[1] 沈建强[2] 

机构地区：[1]上海理工大学光电信息与计算机工程学院,上海200093 [2]上海理工大学中德学院,上海200093

出　　处：《信息技术》2015年第5期38-40,43,共4页Information Technology

基　　金：2012年上海高校青年教师培养资助计划项目(5113-302105)

摘　　要：对于小型光伏并网发电系统,文中详细分析交错两级式并网系统。直流侧为双重的BOOST升压电路实现最大功率控制,采用扰动观察法实现最大功率点跟踪,并网逆变器的控制策略电压外环电流内环的双环控制,其中电流内环为滞环控制方式,并网逆变器的输出电流跟踪电网电压,实现功率因数为1的并网方式。文中给出了基于MATLAB的系统仿真模型,结果表明光伏电池能较好地实现最大功率点跟踪,电感容量减小,并且逆变后成功并网。For small grid-connected photovohaic system, this paper analyzes grid-connected system of two level interleaved. Side of DC is BOOST circuit of double for achieving maximum power control, by using the method of perturbation and observation to achieve maximum power point tracking, the strategy of double level voltage control of grid-connected inverter is the outer voltage loop control and the inner current loop, method of the inner current loop is the hysteresis control, the outputting current of the inverter tracks the voltage of grid-connected inverter, power factor of grid-connected close to 1. This paper gives out the system simulation model based on MATLAB. The results show that, the photovohaic battery can well realize the maximum power point tracking, capacity of inductive decrease, and photovoltaie grid-connected is success.

关 键 词：交错式 最大功率点跟踪 光伏并网 

分 类 号：TP391.9[自动化与计算机技术—计算机应用技术]