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Received:July 16, 2011
Received:July 16, 2011
中文摘要: 通过仿真实验,分析与研究了三相光伏并网发电系统的控制策略。首先建立了太阳能电池的数学模型,采用基于干扰观测算法进行最大功率点跟踪;然后介绍了三相光伏并网发电系统的结构,并采用空间矢量SVPWM控制器对逆变器进行并网控制;最后在Matlab/Simulink软件上进行了仿真实验。结果表明,SVPWM逆变控制策略优于传统的滞环电流逆变控制策略。
中文关键词:
Abstract:The control strategy of the three-phase PV grid-connected system is analyzed and studied in simulative experiment.First,a mathematical model of solar cells is established,then the algorithms based on perturb observe to track maximum power point is used.Secondly,the structure of three-phase PV grid-connected system is introduced,and the space vector SVPWM controller is used to control the grid-connected inverter.Finally,the simulative results on Matlab/Simulink software show that SVPWM inverter control strategy is superior to the traditional hysteresis current inverter control strategy.
keywords: solar cell model maximum power point tracking perturb observation method inverter two-loop control space vector pulse width modulation
文章编号：20120116 中图分类号： 文献标志码：
基金项目:上海市教委重点学科建设项目(J51301)
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