Analysis and Design of a Photovoltaic System DC Connected to the Utility With a Power Factor Corrector (original) (raw)
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Low power factor presents a heavier generation and transmission burden on the power grid and also deposits a larger carbon footprint. Because of this, most tariffs have provisions allowing the utility to charge a penalty for low power factor. But it is possible to address this problem. The current source of grid connected inverter is implemented by controlled the voltage in phase with current in order to the power flows from variable dc source to power line all time. The system characteristic of the voltage and current of grid-connected inverter as before and after synchronization to power utility are investigated by using MATLAB/SIMULINK simulation and hardware experiment. The experiment results are given, which the inverter output voltage and current are sinusoidal at 50 Hz. of frequency, the both waveform are low harmonic distortion and the current is enforced in phase with the voltage both before and after synchronization all time.
IEEE Canadian Conference on Electrical and Computer Engineering, CCECE 2008, 2008
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This paper proposes a single phase scalable power factor controller (PFC) to support reactive power in distribution power system. The controller calculates power factor (PF) of a system directly by taking data from the distribution line. Considering the power factor deficit, capacitors of different values are connected to the line to improve the power factor. The line data is sensed and processed with the help of instrument transformers and zero crossing detectors. Further, the processed data are fed to a microcontroller which calculates the load power factor of the system. Capacitors of appropriate size are then connected to the line to support the reactive power. The performance of the PFC model is verified by simulation results, and its effectiveness is investigated on residential loads in distribution power system. The results show that the system is capable of maintaining power factor at an optimum level. Moreover, it reduces the power losses, and compensate reactive power in t...
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For the countries like India, photovoltaic will be the most contributing electricity source in coming future. The issues related to the better quality of the power are under considerations for improvements. The researchers and technocrats are working on various aspects to be improved for assured better power quality to be achieved. The role of active filters is very important when the PV system is connected to the non linear loads.Authors have presented the system with consideration of the filter requirement for improving the performance of the PV system in this paper. MATLAB and hardware implementation of the system is presented in this paper with power tracking. Filter and other parts of the PV system. The compensation of the harmonics was the main ideology behind development of this project. https://www.ijiert.org/paper-details?paper\_id=141283