Solar Simulator Innovation Technology for Photovoltaic Module Performance Testing and...-徐林

SJTU 上海交大 Solar Energy Institute太阳能研究所 Solar Simulator Innovation Technology for Photovoltaic Module Performance Testing and Energy Rating Solar Energy Institute of Shanghai Jiaotong University Shanghai Hi-show Photovoltaic Science Technology Co. Ltd. Xu Lin Nov. 10th 2018 Xi an SJTU 上海交大 Solar Energy Institute太阳能研究所 Summary  1、 Efficiency and Energy ratting of PV module  2、 Standard energy rating of PV module  3、 the shortcoming of the compute method  4、 the better way to do energy rating  5、 How to choosing the solar Simulator SJTU 上海交大 Solar Energy Institute太阳能研究所 1.Efficiency and Energy rating of PV module  Decreasing levelized cost of electricityLCOE is the final target of Photovoltaic industry  Only PV conversion efficiency can’t rate the exact performance of PV module generation of electricity  Energy rating in special climatic can be easily compute the LCOE SJTU 上海交大 Solar Energy Institute太阳能研究所 2.standard energy rating of PV module  Photovoltaic PV module performance testing and energy rating - Part 3 Energy rating of PV modules -- IEC 61853- 32018  Photovoltaic PV module performance testing and energy rating - Part 1 Irradiance and temperature performance measurements and power rating-- IEC 61853-12011  Photovoltaic PV module performance testing and energy rating - Part 2 Spectral responsivity, incidence angle and module operating temperature measurements-- IEC 61853-2  Photovoltaic PV module performance testing and energy rating - Part 4 Standard reference climatic profiles--IEC 61853-42018 SJTU 上海交大 Solar Energy Institute太阳能研究所 2.standard IEC61853-1  The power is the function of the temperature and irradiance, IEC61853-1 describe the methodology of testing and computer the PV output power under different temperature and irradiance, Temperature- Irradiance Metrices SJTU 上海交大 Solar Energy Institute太阳能研究所 2.Temperature –Irradiance metrices SJTU 上海交大 Solar Energy Institute太阳能研究所 2.Temperature –Irradiance metrices SJTU 上海交大 Solar Energy Institute太阳能研究所 2.Temperature –Irradiance metrices Pm Isc Voc Egni Module Temperature W/m2 15oC 25oC 50oC 75oC 1200 272.2 260.9 233 205.7 1100 249.3 238.9 213.3 188.2 1000 226.3 216.9 193.6 170.7 800 180.4 172.8 154.1 135.7 600 134.5 128.8 114.7 100.9 400 88.8 85.0 75.4 66.2 300 66.1 63.1 55.9 48.9 200 43.4 41.5 36.6 31.9 100 21.1 20.1 17.5 15.2 SJTU 上海交大 Solar Energy Institute太阳能研究所 2.Interpolation computer  9.1.2 Interpolation of Isc, Voc, Vmax and Pmax with respect to temperature To determine Isc, Voc, Vmax and Pmax at intermediate values of temperature, use a linear interpolation regression method with respect to the measured temperature dependence. SJTU 上海交大 Solar Energy Institute太阳能研究所 2.Energy rating methodology  IEC 61853-32018 describes the calculation of PV module energy rating values. The purpose of this document is to define a methodology to determine the PV module energy output watt-hours, and the climatic specific energy rating dimensionless for a complete year at maximum power operation for the reference climatic profiles given in IEC 61853-4. It is applied to determine a specific module output in a standard reference climatic profile for the purposes of comparison of rated modules. SJTU 上海交大 Solar Energy Institute太阳能研究所 2.Energy rating methodology  Calculate based on the testing and interpolation computer Isc Voc Pmax, testing spectrum, angle of irradianceAOI, Temperature, the special climatic profile. SJTU 上海交大 Solar Energy Institute太阳能研究所 3. the shortcoming of the method  1. Pmax under any irradiance is calculated by linear interpolation, there are errors  2.outdoor testing is dependent on the weather ,always be disturbed by God SJTU 上海交大 Solar Energy Institute太阳能研究所 4. The better way to do energy rating  Indoor testing, steady state Solar Simulator Irradiance and Temperature can be controlled and changed  Only record the energy of PV module in the special Solar simulator. SJTU 上海交大 Solar Energy Institute太阳能研究所 4. The better way to do energy rating  Do the energy rating under the special climatic , convert the spectrum, AOI to irradiance, so the climatic profile data convert to irradiance and air temperature. SJTU 上海交大 Solar Energy Institute太阳能研究所 4. The better way to do energy rating  The solar simulator must offer a changeable irradiance  The solar simulator must offer a changeable air temperature  The solar simulator must make sure of the PV module working under MPPT mode SJTU 上海交大 Solar Energy Institute太阳能研究所 4. The better way to do energy rating  The lamp and power source SJTU 上海交大 Solar Energy Institute太阳能研究所 4. The better way to do energy rating  The irradiance uniformity SJTU 上海交大 Solar Energy Institute太阳能研究所 4. The better way to do energy rating SJTU 上海交大 Solar Energy Institute太阳能研究所 Conclusion  1.The IEC61853 describe the methodology of energy rating of PV module based on linear interpolation of Isc Voc Pmax, more compute, more error.  2.changeable Irradiance and temperature solar simulator decrease the compute, increase the exact testing, so energy rating will be more reliable