Summary:
Power flow analysis is a key tool for planning, operation, and control of power systems. The most novel family of power flow algorithms is based on the Holomorphic Embedding Load-flow Method (HELM), presented a decade ago. Within that family, the Multi-Stage HELM (MSHELM) is a further step from the HELM that improves convergence properties. This paper presents a Multi-Stage HELM scheme designed to speed up the convergence of power flow equations. The convergence process is monitored by a convergence factor that allows controlling the exit criterion at each of the stages of the MSHELM. The convergence factor presented provides a continuous connection between two discrete alternatives, i.e., the original HELM model and an MSHELM model with only first-degree stages, opening the possibility of finding the optimal alternative in between.
Keywords: Power flow, holomorphic embedding, convergence control.
JCR Impact Factor and WoS quartile: 6,600 - Q1 (2022)
DOI reference:
https://doi.org/10.1109/TPWRS.2024.3401782
In press: May 2024.
Citation:
A. Benítez Domínguez, F.M. Echavarren, L. Rouco, A convergence control scheme for multi-stage holomorphic embedding load-flow method. IEEE Transactions on Power Systems.
