Solar photovoltaic power generation CTC national complete photovoltaic inverter new Italy standard testing center

The vigorous development of photovoltaic industry in 2019 is a year, at the same time with several national pv inverter grid new standards, also make become opportunities and challenges coexist in the year 2019, CTC national pv center will take this opportunity to seize the opportunity, meet the challenge, continue to play their own professional advantage, adhere to the innovation and development, efforts to do the pv industry leader. In order to guarantee the safe and stable operation of the grid, photovoltaic inverter need to have a certain voltage crossing ability. As photovoltaic increasing proportion in the grid, photovoltaic power plant fault crossing ability is more important. On-board controller photovoltaic inverter grid startup conditions for the power grid voltage Un in 90% to 110% between the Un and frequency in 49. 90 hz to 50. Between 10 hz, the start process, the power of the largest increase rate of 20% Pn/min. Detection is behind the successful completion of the task of testing engineers hard efforts, is team quality detection technology support, the test task is completed, marks the center pv inverter performance and further improve the reliability testing ability. Starting voltage run to 112% of the Un in 10 minutes, the output power of the inverter should be reduced to no more than 20% of the rated power. High voltage across the test purpose is based on high voltage across the curve shown in figure 2, validation of photovoltaic inverter whether conform to the requirements of the voltage change of immunity. The standard was released in April 2019 and officially replaced the CEI 0 And 14 - 09 standard and its derivatives. In order to guarantee the accuracy of the results, should be at least three times test, each test running time is not less than five minutes, as shown in the following: the CEI 0 16 standard full name & the other; Lord, passive users connected to the power distribution company of high voltage, medium voltage power grid reference technical regulations & throughout; 。 Waste incineration power plant project principle diagram of the on-board controller solar controller make the inverter running under 108% of the Un, the output of active power is equal to the Pn. Low voltage through the test purpose is based on low voltage across the curve shown in figure 2, pv applied pv inverter whether conform to the requirements of the voltage change of immunity. Photovoltaic (pv) grid inverter in fault tripping off the net, after the failure to remove, should restore grid inverter, power recovery of minimum waiting time of 300 s, and the power to restore the maximum rate of 20% of the Pn/min. Test, photovoltaic inverter connected to the grid simulation will power and running under the rated power. Photovoltaic inverter should have over voltage derating control function. For export to Italy regional photovoltaic inverter requires the standard certification testing. The principle diagram of the solar controller

should test 100% rated power and 50% respectively under the rated power of the inverter frequency derating control function, as shown in figure 1. Recently, the national solar pv ( Electricity) Product quality supervision and inspection center ( Hereinafter referred to as the CTC) national center for photovoltaic (pv) Entrusted by the enterprise, according to CEI 0 - 16 standard of photovoltaic (pv) grid inverter performance and reliability test ( The main test project see the attachment) 。 Heat storage equipment within the whole life cycle of photovoltaic power station, providing critical equipment supervision, the arrival of the acceptance of the equipment, site and light resource assessment, design evaluation and optimization, construction and installation quality inspection and the quality of power plant and the performance test ( Power station after acceptance, plate heat exchanger type parameter evaluation, follow-up monitoring) , plant investment and financing and transaction process of due diligence, photovoltaic system authentication, power plant operation and maintenance, evaluation and certification of power plant system and equipment fault diagnosis and analysis of the third party technical services. When the grid frequency higher and higher than the set value of f1 ( f1 = 50。 2Hz) , the output power of the inverter should be strictly in accordance with a certain proportion of derating, frequency recovery, inverter output power should be kept constant until the frequency is lower than the set threshold f2 ( f2=50Hz) When the active power back to ratings. The new standard of the main innovation point is that it and the European Union, laws and regulations, 2016/631/2016 # 1388 or # 1447/2016 rules and regulations to keep the same. National solar pv ( Electricity) Product quality supervision and inspection center is the core of the CTC countries inspection group members, heat storage equipment CMA, CAL, CNAS authorized laboratory, the IECEE, international electrotechnical commission CB laboratory detection coverage photovoltaic materials, photovoltaic modules, photovoltaic components, photovoltaic systems and photovoltaic inverter and so on the whole industry chain, is the signing of a number of well-known domestic and foreign certification bodies laboratory, and electric power company, insurance, banking, funds, investors and the parameters of the plate heat exchanger type EPC develop extensive cooperation, etc. CTC China inspection group on November 9, 2016 a-share market listed on Shanghai stock exchange, stock code 603060. Set the grid simulation power supply, make the inverter ac output voltage is equal to 112% of the Un.