Optimal reconfigurable HW/SW co-design of load flow and optimal power flow computation

2006 ◽  
Author(s):  
M. Murach ◽  
P. Vachranukunkiet ◽  
P. Nagvajara ◽  
J. Johnson ◽  
C. Nwankpa
Keyword(s):  
Power Flow ◽  
Optimal Power Flow ◽  
Load Flow ◽  
Flow Computation ◽  
Optimal Power

Advanced SVC models for Newton-Raphson load flow and Newton optimal power flow studies

2000 ◽  
Vol 15 (1) ◽  
pp. 129-136 ◽  
Author(s):  
H. Ambriz-Perez ◽  
E. Acha ◽  
C.R. Fuerte-Esquivel
Keyword(s):  
Power Flow ◽  
Optimal Power Flow ◽  
Load Flow ◽  
Optimal Power ◽  
Newton Raphson

scholarly journals Black hole optimizer for the optimal power injection in distribution networks using DG

2021 ◽  
Vol 2135 (1) ◽  
pp. 012010
Author(s):  
Oscar Danilo Montoya ◽  
Diego Armando Giral-Ramírez ◽  
Luis Fernando Grisales-Noreña
Keyword(s):  
Black Hole ◽  
Power Distribution ◽  
Power Flow ◽  
Optimal Power Flow ◽  
Distribution Networks ◽  
Test System ◽  
Load Flow ◽  
Optimization Strategy ◽  
Optimal Power ◽  
Distribution Company

Abstract The optimal sizing of Distributed Generators (DG) in electric power distribution networks is carried out through a metaheuristic optimization strategy. To size DG it is proposed an optimal power flow model is formulated by considering that the location of these sources has been previously defined by the distribution company. The solution of the optimal power flow is reached with the Black Hole Optimizer (BHO). A methodology is used master-slave optimization methodology, where the BHO (i.e., master stage) defines the sizes of the DG and the slave stage evaluates the objective function with a load flow algorithm, this work using the triangular-based power flow method. Numerical results in the 33-node and the 69-node test system demonstrates the effectiveness and robustness of the proposed approach when compared with literature results.

scholarly journals Optimal operation of thermal system based on optimum power flow

2021 ◽  
Vol 10 (3) ◽  
pp. 1204-1210
Author(s):  
Majli Nema Hawas ◽  
Read K. Ibrahim ◽  
Ahmed Jasim Sultan
Keyword(s):  
Power Flow ◽  
Optimal Power Flow ◽  
Optimal Operation ◽  
Load Flow ◽  
Thermal System ◽  
Fuel Cost ◽  
Initial Operation ◽  
Optimal Power ◽  
Optimal Load ◽  
Activity Cost

This paper has demonstrated that the Newton-Raphsin (NR) load flow technique can be stretched out to produce optimal load flow (OPF) arrangement that is achievable as for all significant disparity imperatives. These arrangements are frequently desired for arranging and activity. We were examined how the load ought to be shared among different plants, when line misfortunes are represented to limit the absolute activity cost with optimal power flow computation with thought about penalty factors, steady fuel cost, and coefficient factors. The IEEE three-machines and nine- Bus bars system was a tested system. The obtained results were compared by initial operation and equality distribution through the saving cost ($/year). The comparison of results showed saving more than 1.6 million $/year under MATLAB V.18a environment.

A contingency partitioning approach for preventive-corrective security-constrained optimal power flow computation

2016 ◽  
Vol 132 ◽  
pp. 132-140 ◽  
Author(s):  
Yan Xu ◽  
Hongming Yang ◽  
Rui Zhang ◽  
Zhao Yang Dong ◽  
Mingyong Lai ◽  
...  
Keyword(s):  
Power Flow ◽  
Optimal Power Flow ◽  
Flow Computation ◽  
Optimal Power

scholarly journals Three-Phase Unbalanced Optimal Power Flow Using Holomorphic Embedding Load Flow Method

2019 ◽  
Vol 11 (6) ◽  
pp. 1774 ◽  
Author(s):  
Bharath Rao ◽  
Friederich Kupzog ◽  
Martin Kozek
Keyword(s):  
Power Flow ◽  
Optimal Power Flow ◽  
Low Voltage ◽  
Distribution Networks ◽  
Optimization Method ◽  
Load Flow ◽  
Flow Method ◽  
Optimal Power ◽  
Three Phase ◽  
Holomorphic Embedding

Distribution networks are typically unbalanced due to loads being unevenly distributed over the three phases and untransposed lines. Additionally, unbalance is further increased with high penetration of single-phased distributed generators. Load and optimal power flows, when applied to distribution networks, use models developed for transmission grids with limited modification. The performance of optimal power flow depends on external factors such as ambient temperature and irradiation, since they have strong influence on loads and distributed energy resources such as photo voltaic systems. To help mitigate the issues mentioned above, the authors present a novel class of optimal power flow algorithm which is applied to low-voltage distribution networks. It involves the use of a novel three-phase unbalanced holomorphic embedding load flow method in conjunction with a non-convex optimization method to obtain the optimal set-points based on a suitable objective function. This novel three-phase load flow method is benchmarked against the well-known power factory Newton-Raphson algorithm for various test networks. Mann-Whitney U test is performed for the voltage magnitude data generated by both methods and null hypothesis is accepted. A use case involving a real network in Austria and a method to generate optimal schedules for various controllable buses is provided.

Advanced SVC models for Newton-Raphson load flow and Newton optimal power flow studies [discussion and closure]

2001 ◽  
Vol 16 (4) ◽  
pp. 946-948 ◽  
Author(s):  
J.H. Tovar-Hernandez ◽  
G. Gutierrez-Alcaraz ◽  
R. Mota-Palomino ◽  
J.L.R. Pereira ◽  
V.M. da Costa ◽  
...  
Keyword(s):  
Power Flow ◽  
Optimal Power Flow ◽  
Load Flow ◽  
Optimal Power ◽  
Newton Raphson

A Hybrid Method for Transient Stability-Constrained Optimal Power Flow Computation

2012 ◽  
Vol 27 (4) ◽  
pp. 1769-1777 ◽  
Author(s):  
Yan Xu ◽  
Zhao Yang Dong ◽  
Ke Meng ◽  
Jun Hua Zhao ◽  
Kit Po Wong
Keyword(s):  
Hybrid Method ◽  
Power Flow ◽  
Optimal Power Flow ◽  
Transient Stability ◽  
Flow Computation ◽  
Optimal Power
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