Power Flow Automatic Adjustment Based on Reactive Power Distribution Factor

On account of the regional balance requirements of reactive power, this paper proposes automatic adjustment method based on reactive power distribution factor for the trend. In this paper, the equivalent impedance of the p-type equivalent circuit is as the electrical distance to strike the reactive power allocation factor. In the Reactive iterative process, node reactive power mismatch is compensated according to reactive power balance rules and distribution factor. Furthermore, based on the PQ decomposition method, automatic adjustment algorithms of the active and reactive power are added to the iterative process, the system active and reactive power vacancies are assigned to generator nodes in the system which still have the capacity of accommodation in accordance with their adjustment strategy to realize automatic adjustment; in the later period of iterative process, power flow calculation is translated to the regular trend to promote the rapid convergence of the whole algorithm. The results show that the system load changes, under the premise of meeting the node voltage and reactive power constraints the proposed method can rationally allocate the power flow and achieve the automatic adjustment.