TY - GEN
T1 - The development and the application of fast decoupled load flow method for distribution systems with high R/X ratios lines
AU - Ochi, Takamichi
AU - Yamashita, Daiki
AU - Koyanagi, Kaoru
AU - Yokoyama, Ryuichi
PY - 2013
Y1 - 2013
N2 - An improved Fast Decoupled Load Flow calculation method for distribution systems with high R/X ratio is proposed. This method is based on a coordinate transformation in Y-matrix for Jacobian matrix in the load flow method. The biggest advantage of so-called Fast Decoupled Load Flow(FDLF) method over the conventional Newton-Raphson method is the short computation time for large power systems which is achieved by the reduced size of Jacobian matrix. However, it is said to worsen convergence characteristics for distribution systems with lines of high R/X ratios compared to the conventional Newton-Raphson method. In order to overcome the problem, the authors employed a coordinate transformation in Y-matrix of the Fast Decoupled method. Better convergence processes in the improved Fast Decoupled method are demonstrated and some discussions are given in case of the analysis of the distribution systems with high R/X ratio lines.
AB - An improved Fast Decoupled Load Flow calculation method for distribution systems with high R/X ratio is proposed. This method is based on a coordinate transformation in Y-matrix for Jacobian matrix in the load flow method. The biggest advantage of so-called Fast Decoupled Load Flow(FDLF) method over the conventional Newton-Raphson method is the short computation time for large power systems which is achieved by the reduced size of Jacobian matrix. However, it is said to worsen convergence characteristics for distribution systems with lines of high R/X ratios compared to the conventional Newton-Raphson method. In order to overcome the problem, the authors employed a coordinate transformation in Y-matrix of the Fast Decoupled method. Better convergence processes in the improved Fast Decoupled method are demonstrated and some discussions are given in case of the analysis of the distribution systems with high R/X ratio lines.
KW - Distribution systems
KW - Fast decoupled load flow
KW - Newton-Raphson method
KW - Power flow calculation
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U2 - 10.1109/ISGT.2013.6497842
DO - 10.1109/ISGT.2013.6497842
M3 - Conference contribution
AN - SCOPUS:84876898212
SN - 9781467348942
BT - 2013 IEEE PES Innovative Smart Grid Technologies Conference, ISGT 2013
T2 - 2013 IEEE PES Innovative Smart Grid Technologies Conference, ISGT 2013
Y2 - 24 February 2013 through 27 February 2013
ER -