Research on Power Supply Model of medium voltage distribution system

Power Supply Model(PSM) of MV distribution system is presented to resolve the problem that conventional analysis only gave regards to feeder connection mode so as to neglect coordination power supply with multiply voltage levels and substation structure in different landform and load density. First, the impacts of different characters of landform and load density on the PSM is analyzed; Second, Power Supply Framework(PSF) indicated interconnection structure of substation is established according to landform and load density; Then, integrated PSM is formed by the analysis of PSF and connection mode; Finally, the attribute and external characteristic of PSM is gained with quantity of power supply unit and power supply capability. The proposed PSM could reflect coordination power supply with substation and MV feeder in whole, which would play an important guidance role in the theoretic analysis and actual design of power supply project.