A method is proposed for the integration of multi-source data and auto-adjustment for power flow

with the purpose of rapidly generating the power flow calculating data for checking the dispatching plan and accessing the operation state of power grid. Based on the operation plan of power grid

the method proposed formats the operation plan into PSD-BPA form by integrating the dispatching plan

actual operating data

and model data of the power grid. Then

a power-balanced operation plan is obtained by adjusting the power flow area by area

with the consideration of distribution of power imbalance in the power grid. The active power imbalance and reactive power imbalance are derived after the integration of data. Finally

an automatic power flow convergence adjustment process is developed to generate the operation plan that meets analytical requirements according to the weakest transmission path theory. This operation plan can provide the initial data for dispatching check and operation state assessment. Actual application in Yunnan power grid has proved the effectiveness and practicality of the method proposed.