How to solve the problems about the development and reformation of urban grid

This stage, China's power industry in large-scale new energy power generation and high voltage long distance power transmission technology keeps a world-leading position. However, the present development of high-voltage transmission, transformation and distribution system in urban area is not optimistic. According to the development experience of urban distribution network in Paris, simplify the layers of transformation of the urban distribution which are composed of only one high, medium and low voltage level. In view of this present situation of urban network in China, a new mould of high voltage packaged and intelligent substation scheme has been advanced to complete the difficult problems of urban grid development and reformation.