摘要
以MATLAB/SIMULINK为仿真平台,建立光伏模块和最大功率跟踪控制器的数学模型和仿真模块,分析光伏模块的电气特性,实现最大功率点的动态跟踪,提出集成式光伏模块和最大功率跟踪控制的并网逆变器系统模型和电流滞环跟踪控制策略,仿真结果验证光伏模块数学模型和最大功率跟踪算法的有效性,对光伏并网逆变器受外界环境变化影响的动态响应进行了仿真,表明电流滞环跟踪控制应用于光伏并网逆变器能改善注入电网电流的品质,使电网功率因数为1。
Based on the simulation platform of Matlab/simulink, the mathematical models and simulation modules of photovoltaic array and MPPT（maximum power point tracking） were built in this paper. The electrical characteristics of photovoltaic module was studied and the maximum power point dynamic tracking was accomplished as well. In addition, the grid-connected inverter system models with the integration of photovoltaic module and MPPT controller and the scheme of current hysteresis band control were presented. The simulation result indicates that the photovoltaic mathematical model and the algorithm of MPPT were valid. The dynamic response of grid-connected inverter which affected by climatic condition change is simulated. The result reveals that the current hysteresis band control scheme applied in the photovoltaic grid-connected inverter can improve the power quality grid, with the result of unity of power factor.
出处
《电源技术》
CAS
CSCD
北大核心
2009年第7期596-600,共5页
Chinese Journal of Power Sources
基金
国家自然科学基金(50667002)
新疆大学青年科研基金启动项目(QN070136)
关键词
光伏
最大功率跟踪
并网逆变器
滞环控制
仿真
photovoltaic
MPPT
grid-connected inverter
hysteresis band control
simulation
