Properties, Simulation andExperimental Investigation oftheSeries-Parallel Active PowerFilters

Inthis paperintroduced calculate methodofactive power filters passive components,simulation and experimental researches results oftheseries-parallel active powerfilter. Authors especially occupyoneself withanalysis power flow between bothactive filters in UPQCsystem andnonlinear load. Thisproblem is according toauthors veryimportant, because itmakespossible tofind optimum configuration ofthehybrid UPFCandpoweroftheadditional sourceselements.