General electromechanical transient model of grid connected photovoltaic power generation system and its comparative analysis with electromagnetic transient model

2nd International Symposium on Resource Exploration and Environmental Science

生态环境科学

Xia, Zongze^1 ; Xia, Fei^1 ; Cong, Peixian^1 ; Yang, Zhixiong^2 ; Song, Hanbiao^1 ; Hong, Xiubin^1

State Grid Liaoyang Electric Power Supply Company, Liaoyang

111000, China^1

Kunming Institute of Physics, Kunming

650223, China^2

关键词: Calculation speed;    Comparative analysis;    Electrical components;    Electromagnetic transient model;    Electromechanical transients;    Grid-connected photovoltaic;    High-frequency switching;    Mathematical calculations;   

Others  :  https://iopscience.iop.org/article/10.1088/1755-1315/170/4/042146/pdf
DOI  :  10.1088/1755-1315/170/4/042146

学科分类：环境科学（综合）

来源: IOP

【 摘 要 】

order to solve the problem of complex electromagnetic transient model and slow calculation speed of grid connected photovoltaic power generation system, a general electromechanical transient model for grid connected photovoltaic power generation system is proposed. The model contains small electrical components and high frequency switching devices. It is completed by pure mathematical calculation. The model is simple and fast. The electromechanical transient model is simulated in PSCAD/EMTDC, and the results are in good agreement with the simulation results of electromagnetic transient model, and the simulation time is greatly reduced, which verifies the correctness and effectiveness of the electromechanical transient model. The universal electromechanical transient model provides a model reference for large-scale grid connected photovoltaic power plant simulation and modeling, and has practical value.