PROJECT TITLE :
Adaptive Harmonic Compensation in Residential Distribution rid by Roof-Top PV Systems
ABSTRACT:
Single-phase non-linear loads and power quality concerns in the home distribution system will increase in the future. It may be difficult to compensate for non-linear loads that are distributed. It's possible to use rooftop PV inverters in home distribution grids as custom power devices because of the higher capability of single-phase grid-connected inverters. In addition to injecting the fundamental current, these systems can operate as a virtual harmonic resistance and dedicate their considerable current capacity to compensating the harmonics of the home distribution grid by establishing suitable regulation for roof-top PV inverters. Using the Sliding Discrete Fourier Transform (SDFT) technique, each roof-top PV system continuously monitors PCC voltage harmonics and then individually compensates the detected harmonics by the suggested adaptive harmonic compensator. Each harmonic component is compensated using a different current reference in the suggested approach. It will then allocate increased current capacity to each component in order to compensate via adaptive gain. Finally, a Model Predictive Current Controller manages the current reference (MPCC). An LCL filter has been used at the output of a single-phase transformerless inverter (HERIC). Matlab-Simulink and experimental tests have both confirmed the control scheme's efficacy.
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