Distributed energy storage optimal configuration method and system

The invention discloses a distributed energy storage optimal configuration system, which comprises a data acquisition module, a voltage fluctuation calculation module, a network loss rate calculation module, an energy storage demand calculation module, a voltage fluctuation analysis module and a configuration optimization module, the data acquisition module is respectively connected with the voltage fluctuation calculation module, the network loss rate calculation module and the energy storage demand calculation module, the voltage fluctuation calculation module is connected with the voltage fluctuation analysis module, and the voltage fluctuation analysis module, the network loss rate calculation module and the energy storage demand calculation module are respectively connected with the configuration optimization module. The network loss rate, the voltage fluctuation value and the energy storage demand value are calculated, the node positions with the low network loss rate and the low voltage fluctuation val