秦智恒,任磊,秦岭,茅靖峰

• 1:南通大学电气工程学院

摘要(Abstract)：

在局部遮阴条件下，光伏阵列的P-U特性曲线会出现多峰现象。传统的方法易陷入局部最大功率点（LMPP），而基于元启发式算法的最大功率点跟踪（MPPT）方法难以兼顾快速性和准确性。对此，设计了一种基于改进粒子群（IPSO）算法内嵌变步长扰动观察法（IP&O）的IPSO-IP&O混合算法。首先，采用IPSO对粒子的速度和位置进行更新；然后，通过IP&O对粒子进行最大功率点跟踪，并将跟踪得到的功率作为粒子的适应度值，以便于IPSO在诸多局部最大功率点中找到全局最大功率点；最后，以IPSO输出的全局最优为初始位置，再次利用IP&O进行全局最大功率点跟踪。将所提算法与IP&O、IPSO、改进粒子群算法结合扰动观察（IPSO-P&O）算法进行仿真对比，仿真结果表明：所提算法在跟踪速度和精度上表现优异，尤其是在宽电压搜索范围的情况下；并且在跟踪过程中的功率振荡更小。

关键词(KeyWords)： 光伏系统;最大功率点跟踪;局部遮阴;改进粒子群算法;变步长扰动观察法

Abstract:

Keywords:

基金项目(Foundation): 江苏省高等学校基础科学（自然科学）研究项目（22KJB470025）;; 南通市社会民生科技计划面上项目（MS12021015） ~~

作者(Author): 秦智恒,任磊,秦岭,茅靖峰

DOI: 10.19666/j.rlfd.202305068

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