Construction Of Roof Photovoltaic Power Generation System And Analysis Of Power Quality

On the rooftop PV system components of the roof of the actual PV system as theresearch object. At first,this paper introduces the utilization of solar energy and thenstudy the various roof photovoltaic system components. The history of thedevelopment of solar energy utilization, solar utilization, solar energy utilizationprospect. Then we study the classification of the solar photovoltaic systems,photovoltaic power generation system, photovoltaic power generation system.Composition of photovoltaic system consists of solar array,blocking diode, battery,controller, inverter, measuring equipment. Then introduces the generating principle ofgrid connected photovoltaic system and photovoltaic power generation system.We study on the characteristics of solar cell module, control system, structure ofjunction box, the principle of the inverter, inverter, SPWM inverter voltageperformance analysis, the control circuit of inverter. Solar electric energy generatedby the inverter analysis after processing and supply power to the load. The mainpurpose of power through the inverter to output power control of the whole system,so the main circuit and control circuit of inverter combination part is called powercontroller.We analysis the quality of rooftop PV system of electric energy, a systematicanalysis of the voltage deviation, voltage fluctuation and flicker, voltage fluctuationand flicker, flicker, the concept of power system harmonic analysis, harmonic voltage,three-phase unbalance degree etc.. And the actual data obtained with the nationalstandards for comparison, performance of the power plant.