唐杰,邵武,孟志强

• 1:多电源地区电网运行与控制湖南省重点实验室(邵阳学院)
• 2:湖南大学电气与信息工程学院

摘要(Abstract)：

准Z源逆变器传统的简单升压算法直通占空比恒定,在环境变化的情况下,不能平衡直流母线电压,无法跟踪光伏阵列最大功率点,造成能量损失。针对传统简单升压算法的不足,提出了一种基于电容电压的新型直通控制策略。该策略通过建立光伏准Z源并网系统的小信号模型,建立系统的传递函数,然后基于传递函数设计控制器,实现MPPT跟踪及并网运行。运用PSIM仿真软件对算法进行了仿真验证,仿真结果表明,设计的控制策略能很好地稳定直流母线电压,实现光伏电池板最大功率运行。

关键词(KeyWords)： 光伏电池;最大功率点跟踪;小信号模型;准Z源逆变器;直通占空比

Abstract:

Keywords:

基金项目(Foundation): 湖南省自然科学基金资助项目(2018JJ2367);; 湖南省科技计划资助项目(2016TP1023)

作者(Author): 唐杰,邵武,孟志强

DOI: 10.19635/j.cnki.csu-epsa.000303

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