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The Design and Application of Photovoltaic On-grid-monitoring System

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Tutor: LiLianBing
School: Hebei University of Technology
Course: Control Science and Engineering
Keywords: Grid-connected PV,Supervisory and Control,local monitor,upper monitoring,remote
CLC: TP277
Type: Master's thesis
Year:  2013
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Abstract:
Solar energy, as an inexhaustible supply, is clean and sustainable. It has become the focusof attention. Recently, the National Energy Board released "The Renewable EnergyDevelopment12th Five-Year Plan ", will promote solar diversified utilization. Solar powerinstalled capacity reached21million kilowatts in2015, including10million kilowatts of gridand distributed off-grid photovoltaic power generation system installed capacity. Currently,photovoltaic power plants that have been built or are under construction in the large-scalegrid-connected photovoltaic power plants, accounted for a large proportion in China. Operationof photovoltaic power plants is mostly in the case of unattended control, and photovoltaic powergeneration is also more complex. In terms of the inverter control board there are overvoltage,overcurrent, overload, over-temperature and so on at any time. Therefore, it is necessary todevelop a set of the photovoltaic grid monitoring system. The system is very practical for itsmultiple functions and performance of real-time.This thesis takes Tianjin Noel Electrical Company in Xinjiang100MWp photovoltaicgrid-connected project as the background, analyzes the principle of the photovoltaicgrid-connected generation system, proposes the design and application of the100MWpphotovoltaic grid-monitoring system. The system includes local monitor, upper monitoringcomputers and remote monitoring computers to achieve the operational status of the photovoltaicgrid-connected power plant by centralized monitoring, control, storage, analysis, display,printout and other functions. This system is integrated into business management philosophy,providing the necessary management information for the senior of the power station.
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