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PV Modelling for Large scale of Solar Farm In the near future, a large scale of solar farms will become popular and the number of people who tends to invest in this renewable energy is continuously increasing But the first thing to concern while trying to make a solar farm with the high efficiency is “ How to model the solar farm ? ” Supakrit Nititsopon Renewable Energy and Power System Laboratory i Outline Overview Single PV Modelling Large-scale PV grid-connected model Smart inverter Overall Experience ii Overview • Solar Panel : Convert the sun irradiation to the electrical power via semiconductor materials d Irra ianc • e MPPT : The Maximum power point tracker  which optimizes the match power between the solar array (PV panels), and the utility grid.  • Inverter : Convert the DC power to AC power • Transformer : Transform the power from the invertor to the grid with the DC power MPPT optimized power Transformer • Grid : Collect the power and distribute to the loads DC to AC power Single Photovoltaic Modeling with Simulink to study I-V , P-V curves Reference Module Characteristic ELECTRICAL CHARACTERISTICS DATA OF SOLKAR 36W PV MODULE PV cell modeled as diode circuit The electrical specifications are under test conditions of -irradiance of 1kW/m2, -spectrum of 1.5 air mass -cell temperature of 25 C Case I Constant temperature with varying irradiance Case II Varying temperature with constant irradiance Vpv(V) Vpv(V) Vpv(V) Vpv(V) Irradiation = Output Power Temperature = Output Power The I-V and P-V curve comparison for one module Original 36W module PV Specification 10MW module PV Specification Large-scale PV grid-connected model - 10 MW Grid-Connected PV Farm module PV Improve the performance of PV array in the system with a new module and algorithms Grid Measurement Results The Vdc of model The maximum power increase to 10MVA The Mod Index of The VSC Control is about 0.24 (The mod index should below The active and reactive current of VSC Control to avoid the signal distortion) Smart inverter -Power quality control Original VSC Main Controller VSC Main Controller with current control as equation   Output result Overall Experience Thank you for your attention