Recently, the National Science and Technology announced the 2013 annual list of national key new product projects , Shanghai Electric SPG DAY PV grid-connected inverter power by the National Science and Technology, Ministry of Commerce , General Administration of Quality Supervision , Environmental Protection Agency assessed as " National Key new product . " Thus, in the new energy electrical chase day , power quality optimization, soft-start control field obtained "National Key New Product" Honor has reached eight .

National key new product plan is a national science and technology plan an important part of the system 's technology industry , to guide , promote scientific and technological progress of enterprises and research institutions and improve the technical innovation capability, to achieve and product structure adjustment and optimization of industrial structure . Reporting requirements of the reporting enterprise projects with significant social, economic and market prospects , product performance reached the advanced level .

DAY self-developed high-power electrical grid PV inverters presents a new control strategy, grid-connected inverter , reactive power compensation and active filters combine three functions , the inverter not only has the ability to transfer real power , but also regulate the reactive power and harmonic compensation function , with a stronger ability to eliminate low voltage ride through and harmonics.

The product conversion efficiency up to 99.1% at rated power harmonic distortion can be controlled within 1% , far below the national standard ( 5% ) , greatly improving the reliability and safety nets ; addition, the project is also the product has a very low starting power (0.5% Pe), effectively avoiding the battery pack at low light intensity resulting in waste of energy. 2012 The product passed the provincial science and technology achievement appraisal , was identified as " reached the international advanced level ." Currently, DAY electrical power grid connected inverter products in Qinghai, Xinjiang, many large-scale photovoltaic power plant project has been widely used.

The chase day electrical power photovoltaic grid inverters included in the national key new product projects , promoting the development of new energy technologies , new energy to accelerate industrial upgrading and enhance overall competitiveness of China's new energy products , has a positive role. DAY Electric will also take this opportunity to continue to intensify efforts to develop the project into full play the advantages of energy-efficient products , and create greater economic and social benefits.