The application discloses a
new energy large generator caused periodic overload
dynamic capacity increasing method and
system of a
transformer in a
transformer area, relates to the technical field of
distribution transformer overload management, and comprises the following steps: collecting multi-
source data of a
transformer area
distribution transformer,
new energy, load and environment; analyzing periodic load characteristics, establishing a
distribution transformer overload and
overvoltage characteristic model; real-time monitoring of
transformer oil temperature, winding temperature and load current,
dynamic capacity increasing of the transformer, evaluation of real-time overload capacity and residual capacity of the transformer; determining the transformer load rate according to the actual maximum load and rated capacity; optimizing the charging and discharging parameters of the
energy storage system according to the real-time overload capacity, residual capacity and transformer load rate, generating a source-grid-load-storage collaborative control strategy; executing
energy storage charging and discharging to smooth the load curve and realize
dynamic capacity increasing of the distribution transformer; real-time monitoring of the operating state and closed-loop correction of the control strategy. Periodic overload can be precisely managed,
overvoltage can be inhibited, and the asset
utilization rate of the distribution network and the power supply reliability can be improved.