基于自适应滑模层极值搜索的光伏发电最大功率跟踪方法

ZHANG Kai

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基于自适应滑模层极值搜索的光伏发电最大功率跟踪方法

更新时间：2025-08-13

- 基于自适应滑模层极值搜索的光伏发电最大功率跟踪方法
- Automation of Electric Power Systems Vol. 39, Issue 12, Pages: 33-37(2015)
- 作者机构：
  
  智能电网教育部重点实验室, 天津大学,天津市,300072
- 作者简介：
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- Published：2015
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ZHANG Kai. [J]. Automation of electric power systems, 2015, 39(12): 33-37.
DOI：

ZHANG Kai. [J]. Automation of electric power systems, 2015, 39(12): 33-37. DOI：

摘要

保证光伏阵列快速到达最大功率点并且能稳定运行

一直以来是光伏发电研究领域关注的重要问题之一。为此

文中提出了基于参数自适应调整滑模层极值搜索控制的光伏发电系统最大功率跟踪新方法。首先证明了基于滑模极值搜索的光伏发电系统最大功率跟踪控制策略的稳定性;然后提出采用具有更低控制频率及更低控制噪声的滑模层函数代替简单的开关函数。在此基础上

进一步提出了控制参数的自适应调整方法

使得控制系统在具有较好的控制品质的同时

避免了繁琐的人为参数调整。算例证明了所提方法的有效性。

Abstract

How to ensure a photovoltaic array to track the maximum power point and operate stably has always been one of the important issues in the field of photovoltaic power generation. To address this issue

a new maximum power point tracking(MPPT) method is proposed by using an adaptive parameter adjusting method and extremum seeking control based on the sliding layer. Firstly

the stability of the MPPT method using the extremum seeking control based on the sliding layer is proved. Secondly

to overcome the chattering phenomenon caused by high frequency switching

a sliding layer function with lower frequency and lower noise is introduced to substitute for the traditional simple switching function. On this basis

an adaptive adjusting method for control parameters is further presented to achieve higher control quality while avoiding complicated manual parameter adjustment. Simulation results show the effectiveness and validity of the strategy proposed.

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