Also Available Domains Solar Power Generation
The main objective of this project is to mitigate the instabilities with the reduced dc-link capacitance Using a detailed small-signal model of the grid-connected PV system.
Single-stage utility-scale photovoltaic (PV) systems are usually interfaced with the host grid via a centralized voltage-source converter (VSC). Recently, and due to their reliability, the dc-link film capacitors are favoured over electrolytic types in grid-connected applications. However, the capacitance per unit volume of film capacitors is significantly smaller than electrolytic capacitors.
The overall system stability might be compromised by the reduction of the dc-link capacitance, particularly in PV systems that have a dynamic resistance that varies with operating conditions. Using a detailed small-signal model of the grid-connected PV system, it is shown in this paper that the reduction of the dc-link capacitance interferes with the dynamic resistance of the PV array, which eventually leads to instabilities. The minimum dc-link capacitance that preserves the overall system stability is determined. A simple and effective active compensator is developed to mitigate the instabilities with the reduced dc-link capacitance. Detailed time-domain simulations are presented to validate the analytical results and show the proposed compensator’s effectiveness in preserving the system stability
INDEX TERMS: Active damping, DC-AC power converters, DC-link stabilization, grid-connected inverters, photovoltaic, single-stage, small-signal analysis.
NOTE: Without the concern of our team, please don't submit to the college. This Abstract varies based on student requirements.
Operating System : Windows 7/8/10
Application Software : Matlab/Simulink
RAM : 8 GB
Processor : I3 / I5(Mostly prefer)