Benchmark Demonstration

GEOPLEX: Benchmark Demonstration C. Batlle, A. Dòria, E. Fossas IOC-DT-P-2004-23 Octubre 2004 GeoplexBenchmarkDemonstration.1,2,4 4 3,4C.Batlle ,A.Do`ria andE.Fossas1 2 3 5EPSEVG, MAIV, ESAII,and IOCTechnicalUniversityofCataloniaOctober,20031 ElectromechanicalbenchmarkIn this section, we describe the development of a complex multi-domain electromechanical sys-tem as an interconnection of simpler subsystems. We first give a global overview of the totalsystem to be modelled, then describe the subsystems of the model, and conclude with final re-marksonhownetworkmodellingwasusedinthisproblem,andtowhatbenefit.Our electromechanical system exchanges energy between the power grid, a local mechanicalsourceandalocalgeneralload,whichmaycontainsubsystemsfromanydomain.1.1 SystemoverviewAgeneraldescriptionofoursystemappearsinFigure1.Thecoreofourmodelisadoubly-fedinductionmachine(DFIM)togetherwithitscontroller,a back-to-back 3phase converter (B2B). The DFIM is coupled to the power grid directly throughthe stator, while the rotor receives power from the B2B, which in turn takes it from the powergrid.The control objective, which does not form part of this Deliverable, is to effect the flow ofpower from the grid and the local source to the local load, by means of Hamiltonian and portrelatedideas.The 20sim model of the whole system, in bond graph notation, appears in Figure 2. ...