In view of the intermittent and uncertainty characteristics of distributed photovoltaic and for solving the difficulties brought about to the distribution network due to its grid connection access

the calculation method of distributed photovoltaic power generation grid connection acceptance at different configuration modes is proposed.The ability of storage energy to participate grid voltage adjustment at such two kinds of configuration modes at grid side and distributed generation side is analyzed by building the acceptance capacity calculation model of distributed photovoltaic power generation

taking total access to the largest photovoltaic power station as with the optimization target

the rotation reserve capacity

creep speed of normal unit and network transmission as the constraint conditions so to develop acceptance calculation of distributed photovoltaic generation grid-connection.The simulation calculation and analysis results show that the weather conditions can interfere with the distributed photovoltaic output and the difference of daytime output power is significant.The acceptance effect of distributed photovoltaic power generation in the distribution network with energy storage configuration in the grid side mode is improved by about 30%compared with that in the distribution network with energy storage configuration in the distributed generation side mode.