Impedance-Based Analysis of Grid-Synchronization Stability for Three-Phase Paralleled Converters - 2015 PROJECT TITLE: Impedance-Based Analysis of Grid-Synchronization Stability for Three-Phase Paralleled Converters - 2015 ABSTRACT: Grid synchronization stability issues and subsynchronous oscillations between synchronous generators exist in electrical Power Systems. Three-part voltage-source converters (VSCs) are being put in additional and more within the grid to improve efficiency or to utilize renewable energy sources. The identical stability issues between VSCs are also reported and analyzed employing a little-signal model of section-locked loops (PLLs). This paper proposes a different impedance-primarily based analysis technique. The proposed method shows that synchronization instability in a VSC system is because of the negative incremental resistance behavior of grid-tied inverters' impedance when they are modeled in the d-q frame. System can be stabilized simply by changing the inverter's PLL style. Experimental results verify the analysis and the proposed method. Did you like this research project? To get this research project Guidelines, Training and Code... Click Here facebook twitter google+ linkedin stumble pinterest DC-DC Power Convertors Power Grids Asynchronous Generators Subsynchronous Resonance Renewable Energy Sources Power System Stability Electric Impedance Invertors Oscillations Phase Locked Loops Multiple Conversion Ratio Resonant Switched-Capacitor Converter With Active Zero Current Detection - 2015 An Enhanced Model for Small-Signal Analysis of the Phase-Shifted FullBridge Converter - 2015