Control Development and Modeling for Flexible DC Grids in Modelica
Andreas Olenmark, Jens Sloth, Anna Johnsson, Carl Wilhelmsson, Jörgen Svensson · Linköping electronic conference proceedings · 2015
This article presents a way of implementing different control strategies for power electronic converters in the Modelica modeling language.The different control modes were fitted into flexible models that could be interconnected in various power grid topologies.The power grid examples were controlled and kept stable during various load scenarios, using the developed controlled converter models.The work was performed using the Modelica tool Dymola.Modelica is an equationbased object-oriented modeling language.Electrical components in the Electric power library (EPL) from Modelon were used to model power electronic units, grids and other electrical infrastructures.The outcome of this effort was simulation results which clearly demonstrate that the developed controllers enable scalable and controllable DC power grids.