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Multiple Initial Point Approach to Solving Power Flows for Monte Carlo Studies.
- Source :
-
Energies (19961073) . Oct2022, Vol. 15 Issue 19, p7141. 27p. - Publication Year :
- 2022
-
Abstract
- Power flow solvers typically start from an initial point of power injection. This paper constructs a system of multiple initial points (SMIP) to enable selection of an appropriate initial point, with the objective to achieve a balanced improvement in the solution speed and accuracy, for problems with a large number of power flows. The intent is to recover time cost of forming the SMIP through the improvements to each power flow. The SMIP is tested on a time series based Monte Carlo study of Electric Vehicle (EV) hosting capacity in a low voltage distribution network, which has 5.4 million power flows. SMIP is applied to two power flow solvers: a Taylor series approximation and a Z-bus method. The accuracy of the quadratic Taylor series approximation was improved by a factor of 30 with a 27% increase in the solve time when compared against a single no-load initial point. A Z-bus solver with SMIP, limited to two iterations, gave the best performance for the EV hosting capacity case study. [ABSTRACT FROM AUTHOR]
- Subjects :
- *ELECTRICAL load
*TIME series analysis
*APPROXIMATION theory
*LOW voltage systems
Subjects
Details
- Language :
- English
- ISSN :
- 19961073
- Volume :
- 15
- Issue :
- 19
- Database :
- Academic Search Index
- Journal :
- Energies (19961073)
- Publication Type :
- Academic Journal
- Accession number :
- 159669114
- Full Text :
- https://doi.org/10.3390/en15197141