Çok seviyeli paralel melez aktif filtre'nin modellenmesi ve analizi

In industrial areas, the harmonics and other power quality problems which is created by nonlinear loads not only have some bad effects such as system loss, efficiency drop, shortenning the life of circuit elements but also cause material and natural problems. Therefore, the solutions of reducing power quality problems is required to get both economically and high quality electrical energy. The solution of harmonic distortion generated by nonlinear loads is a quite serious problem. One of these solutions is hybrid active power filters. The main aim of the development of hybrid active power filter is to reduce the cost and capacity of active filter by using passive filter that filters the dominant harmonics caused by non-linear loads and supplies reactive power requirement. In this thesis, Hybrid Active Power Filter is modeled in PSCAD/EMTDC. The developed topology is a multilevel topology that achieves both harmonic and reactive power compensations. All controllers are written by FORTRAN programming language. According to the results obtained using PSCAD/EMTDC, it is observed that Multilevel Parallel Hybrid Active Power Filter can compensate both harmonic and reactive power successfully.