Open AccessAn Existence Condition for Power-Flow of DC Microgrids with CPLs Considering Voltage Disturbance and Distributed Generations under MPPT Control
Author(s) -
Ziqing Xia,
Mei Su,
Zhangjie Liu,
Yao Sun,
Hua Han,
Ruisong Liu
Publication year - 2022
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 - 10.1088/1742-6596/2166/1/012007
Subject(s) - control theory (sociology) , microgrid , maximum power point tracking , power (physics) , flow (mathematics) , power flow , disturbance (geology) , voltage , electric power system , stability (learning theory) , computer science , mathematics , control (management) , engineering , physics , electrical engineering , inverter , paleontology , geometry , quantum mechanics , artificial intelligence , machine learning , biology
For the power-flow equation of a power network, whether a feasible power-flow solution exists is necessarily important for the correct operation of the system. Besides, it is directly related to the system’s voltage stability. Therefore, it is of great importance to investigate the existence of the feasible power-flow solution of DC microgrids, especially for those with CPLs and a large amount of distributed generations under MPPT control (MPPPT-DGs). In this paper, a mathematical power-flow equation of the DC microgrid with CPLs is built firstly. Next, a solvability condition for the power-flow equation of the DC networks considering voltage disturbance and MPPT-DGs is derived based on Brouwer’s fixed-point theorem. Moreover, simulations are performed using MALTAB to verify the effectiveness of the proposed theorem.