سيده شيما خرامي

In this thesis, a novel hybrid filter is proposed, consisting of a voltage source-based active filter an‎d an adaptive passive filter based on an extraction block. In the proposed design, the load current is divided into high-frequency an‎d low-frequency components. By applying the frequency separation concept, the power rating of the active filter converter is reduced, which in turn decreases the overall cost of the converter. In the proposed structure, losses, converter capacity, an‎d the rated power of the semiconductor devices are reduced while still meeting stan‎dard requirements an‎d harmonic compensation objectives. The structure also includes a passive filter whose parameters are continuously calculated in real-time by the extraction block. The main advantages of this real-time calculation of passive filter elements are the reduction of resonance risks due to the absence of a fixed passive filter in the network an‎d the improvement of dynamic response speed.

كيفيت توان , جبرانسازي هارمونيك , راه‌آهن برقي , جداسازي مولفه هاي فركانسي , فيلتر تركيبي

Power Quality , Harmonic Compensation , Electrified Railway , Frequency Component Separation , Hybrid Filter

seyedeh shima khorami

seyed mohammad mousavi gazafrodi