电力系统保护与控制2025，Vol.53Issue(10)：142-152,11.DOI:10.19783/j.cnki.pspc.241025
光伏发电最大功率追踪的改进电导增量法
Improved incremental conductance method for maximum power tracking in photovoltaic power generation
摘要
Abstract
The traditional incremental conductance method has two main shortcomings:its internal parameters cannot adapt to changes in external irradiance,and it tends to make misjudgments during irradiance variations.Thus this paper proposes an improved incremental conductance method based on irradiance pre-grouping and voltage change trend discrimination.First,the optimal parameters of the algorithm in each group are pre-calculated by pre-grouping the irradiance levels,and the algorithm parameters are then assigned according to the external irradiance group,allowing the algorithm to adapt to the changes in external irradiance.Second,the cause of the algorithm's misjudgment problem is analyzed,and potential misjudgments are predicted by examining the relationship between irradiance and power trends.The voltage trend is reversed when a misjudgment is predicted,thereby avoiding misjudgment.Finally,a photovoltaic system simulation model is built to verify the proposed method.Simulation results show that the improved incremental conductance method offers better response speed and stability.关键词
电导增量法/最大效率跟踪/误判问题/光伏控制系统/光照预分组Key words
incremental conductance method/maximum efficiency tracking/misjudgment problem/photovoltaic control system/irradiance pre-grouping引用本文复制引用
程子霞,丁青波,柴旭峥..光伏发电最大功率追踪的改进电导增量法[J].电力系统保护与控制,2025,53(10):142-152,11.基金项目
This work is supported by the National Natural Science Foundation of China(No.52107130). 国家自然科学基金项目资助(52107130) （No.52107130）
