Three-phase powersystem parametric identification based oncomplex-space recursive least squares
Santiago Cóbreces, Francisco Huerta, Daniel Pizarro · 2007
Thisworkpresents arecursive algorithm toestimateOn theother side, themainfeatures ofthenon-intrusive thegrid equivalent impedance andgenerator fromthecurrent and methodsistheirability tomakean estimation without voltage measurements performed inthecommoncoupling point,introducing disturbances orusing thedisturbances that usually PCC,ofapowerconverter. Themethodisbasedinarecursive least squares algorithm performed overthecomplex space. The exIst inthe regular converter operathon. Someremarkable works described method workson-line, haslowcomputational overheadare(11)(12) or(13). Thesemethods present several drawbacks anddoesnotrequire theinjection ofdisturbances inthegrid. intheir empirical application duetothelack ofinformation inthe regular converter behavior. Finally, themethod described in(14) Keywords - powersystem, system identification, gridpowerpresents arecursive least squares basedprocedure tocompute converters. thegridimpedance bymeansoftheinformation given bythe usual operation oftheconverter.