A crucial part of the smart grid

the smart distribution system is discussed with respect to the integrated framework and new characteristics of the smart distribution network. An investigation is made on the smart distribution system involving the study and application of new equipments

planning and design

optimal operation

system analysis

demand response and novel technologies. Finally

prospects of the smart distribution system are projected from the perspective of the energy internet and integrated energy systems. This work is supported by National High Technology Research and Development Program of China (863 Program) (No. 2014AA051901)

National Natural Science Foundation of China (No. 51377117

No. 51407125)

Post-doctoral Science Foundation of China (No. 2013M540207)， and State Grid Corporation of China.