Open AccessResearch on Intelligent Control of Photovoltaic Power Generation Fluctuation Based on Linear Active Disturbance Rejection
Author(s) -
Gao Wenxuan
Publication year - 2020
Publication title -
journal of physics. conference series
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.21
H-Index - 85
eISSN - 1742-6596
pISSN - 1742-6588
DOI - 10.1088/1742-6596/1693/1/012193
Subject(s) - photovoltaic system , control theory (sociology) , active disturbance rejection control , ac power , electricity generation , controller (irrigation) , engineering , computer science , power (physics) , control engineering , state observer , voltage , control (management) , electrical engineering , nonlinear system , physics , agronomy , quantum mechanics , artificial intelligence , biology
Nowadays, the output power of photovoltaic power generation fluctuates greatly, which endangers the safe and stable operation of the power grid. Therefore, a method for eliminating photovoltaic power generation volatility based on linear active disturbance rejection control is proposed in the paper. Moreover, through establishing the “anti-disturbance paradigm” model of the photovoltaic power generation system, the frequency scale transformation is introduced to design the linear expansion state observer is. Meanwhile, the linear expansion state observer output is converted too. Besides, proportional calculus controller is used for control, and parameter tuning is achieved through linear auto-disturbance rejection control technology to obtain optimal parameters, thereby completing the elimination of photovoltaic power generation volatility. The simulation experiment results show that when LADRC control is added, the phase A voltage fluctuation is small and the output current is relatively stable, which can effectively reduce the active power output by the photovoltaic power generation unit and improve the execution efficiency.