Over the past decades, research has mainly focused on developing software to analyze, plan and simulate electrical networks. The advent of distributed generation (DG) has gradually changed the power delivery system from the downstream unidirectional to a bidirectional scheme, introducing challenging tecnical issues, for example unacceptable voltage rises. Although new control schemes, droop controls amongst others, have been integrated to DGs via grid-interfaced inverters in order to mitigate these issues, they also need to be efficiently incorporated in simulation software packages.
Partner AUTH is developing a flexible simulation tool that will comprise all the benefits of the existing software products, which are short execution times and robust integration of DG control schemes. The proposed tool is based on two software products, namely MATLAB and OpenDSS. The latter is used as an unbalanced power flow solver, employing phase-domain analysis of the network. The former is utilized for the modeling of developed control schemes and especially the incorporation of droop control for the injected active power of each DG unit.
The performance of the proposed simulation tool is demonstrated by comparing it to common software products. Detailed results will be made available later.
A paper about this simulation tool and its results has been written and submitted for the PowerTech Conference 2015 by G.C. Kryonidis, E.O. Kontis, A.I. Chrysochos, C.S. Demoulias from the Aristotle University of Thessaloniki, and D. Bozalakov, B. Meersman, T. Vandoorn and L. Vandevelde of Ghent University: A simulation tool for extended distribution grids with controlled distributed generation.