Open AccessAlternative power flow method for direct current resistive grids with constant power loads: A truncated Taylor-based method
Author(s) -
Oscar Danilo Montoya,
Walter Gil-González,
Jose Marulanda
Publication year - 2019
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 - 10.1088/1742-6596/1403/1/012011
Subject(s) - computer science , convergence (economics) , mathematical optimization , power (physics) , flow (mathematics) , constant (computer programming) , power flow study , electric power system , matlab , current (fluid) , grid , steady state (chemistry) , taylor series , constant current , mathematics , control theory (sociology) , electrical engineering , engineering , physics , mathematical analysis , geometry , chemistry , artificial intelligence , economic growth , operating system , control (management) , quantum mechanics , programming language , economics
The power flow in electrical system permits analyzing and studying the steady-state behavior of any grid. Additionally, the power flow helps with the proper planning and management of the system. Therefore, it is increasingly necessary to propose power flows with fast convergence and high efficiency in their results. For this reason, this paper presents an alternative power flow approach for direct current networks with constant power loads based on a truncated Taylor-based approximation. This approach is based on a first-order linear approximation reformulated as a recursive, iterative method. It works with a slope variable concept based on derivatives, which allow few iterations and low processing times. Numerical simulations permit identifying the best power flow approaches reported in the specialized literature for radial and mesh dc grids, including the proposed approach. All the simulations were conducted in MATLAB 2015 a .