全球能源互联网（英文）2020，Vol.3Issue(4)：398-412,15.DOI:10.14171/j.2096-5117.gei.2020.04.010
光伏系统最大功率点跟踪算法综述及性能评估
Comprehensive review and performance evaluation of maximum power point tracking algorithms for photovoltaic system
摘要
Abstract
A photovoltaic array is environmentally friendly and a source of unlimited energy generation. However, it is presently a costlier energy generation system than other non-renewable energy sources. The main reasons are seasonal variations and continuously changing weather conditions, which affect the amount of solar energy received by the solar panels. In addition, the non-linear characteristics of the voltage and current outputs along with the operating environment temperature and variation in the solar radiation decrease the energy conversion capability of the photovoltaic arrays. To address this problem, the global maxima of the PV arrays can be tracked using a maximum power point tracking algorithm (MPPT) and the operating point of the photovoltaic system can be forced to its optimum value. This technique increases the efficiency of the photovoltaic array and minimizes the cost of the system by reducing the number of solar modules required to obtain the desired power. However, the tracking algorithms are not equally effective in all areas of application. Therefore, selecting the correct MPPT is very critical. This paper presents a detailed review and comparison of the MPPT techniques for photovoltaic systems, with consideration of the following key parameters: photovoltaic array dependence, type of system (analog or digital), need for periodic tuning, convergence speed, complexity of the system, global maxima, implemented capacity, and sensed parameter(s). In addition, based on real meteorological data (irradiance and temperature at a site located in Addis Ababa, Ethiopia), a simulation is performed to evaluate the performance of tracking algorithms suitable for the application being studied. Finally, the study clearly validates the considerable energy saving achieved by using these algorithms.关键词
最大功率点跟踪系统/光伏电池/可再生能源/性能评估/系统效率Key words
Maximum power point tracking system/Photovoltaic/Renewable energy/Performance evaluation/System efficiency引用本文复制引用
Asegid Belay Kebede,Getachew Biru Worku..光伏系统最大功率点跟踪算法综述及性能评估[J].全球能源互联网（英文）,2020,3(4):398-412,15.基金项目
This work is supported by the following project of the Addis Ababa Institute of Technology, African Railway Center of Excellence, and World Bank group: "A research on integration of renewable and Alternative Energy Sources into Ethiopian Railway System."(AAITRS-GSR-7767-18). （AAITRS-GSR-7767-18）
