The Multi-objective Model of Congestion Eliminating Method of Interruptible Load Nodes

Considering the condition of target selected under different circumstances, this paper proposed a new multi-objective model of transmission congestion management with interruptible load based on brand circuit overload match with interrupt capacity. The objective function of the mathematical model presented in this paper are respectively that, if interruptible load matching with overload capacity ,the least number of interruptible load node at least, the lowest total interrupt amount of interruptible load. The multiobject model put forward three goals, brand circuit overload match with interruptible load, the minimum number of interruptible load nodes and the minimum total interruption of interruptible load. Against other optimization methods cannot prioritize to multiple targets and it can easily lead to convergence in the process of solving problems, the paper presented construct evaluation function based on the linear weighted sum to optimize multi-objective linear problem. This method can be sorted prior to multi-objective optimization model. And it has better convergence than other optimization methods in the solution process. Finally, it tested and verified the correctness of method through the IEEE 30 bus power system. And it successfully applied to grid congestion management in oilfield.