Method for controlling branch power congestion of active power distribution network in real time

The invention relates to a method for controlling branch power congestion of an active power distribution network in real time, and belongs to the technical field of power system operation and control. The method comprises the steps that a three-phase node branch incidence matrix, a three-phase starting end node branch incidence matrix and a three-phase tail end node branch incidence matrix of the active power distribution network are established, an objective function for real-time control over the branch power congestion of the active power distribution network is also established, and a three-phase branch trend equation for reflecting operation of the radiating active power distribution network is further established; then the operation characteristic constrain of the three-phase active power distribution network and all the equipment in the network are comprehensively considered to conduct equivalent deformation on an original problem, a non-linear programming method is used for solving the control value of the active power of a distributed power source and the control value of the active power of a controllable active load, and real-time control over the branch power congestion of the active power distribution network is achieved. The method for controlling the branch power congestion of the active power distribution network highly accords with the characteristics of operation of the active power distribution network, and is small in calculated amount, capable of simply and conveniently achieving network modeling and analyzing of the active power distribution network, and more powerful in capacity for real-time controlling over branch power.