Patent ID: 9720431
Date: 2017-08-01
CPC Classifications: G05B,G05F,G06F

Claim:
1. A method for optimizing flexible constraints of an electric power system, comprising: expressing a total power generation cost f′ of the electric power system by a sum of quadratic functions of active power outputs of all generator sets in the system in a flexible formula as follows:  wherein N selecting a multi-dimensional flexible optimization model or a flexible power generation cost optimization model according to a practical situation of the electric power system and a practical purpose of optimization; determining an operating conditions, including a power grid structure, and voltages and powers of the generators, of the electric power system; carrying out load flow calculation based on the operating conditions of the electric power system; and carrying out corresponding optimization calculation according to the flexible multi-dimensional or flexible power generation cost model selected in the selecting step to obtain a comprehensive flexible optimization result or an optimal power generation cost, if the load flow calculation is successful, and if the load flow calculation fails, carrying out corresponding optimization calculation according to an optimal load curtailment model to obtain an optimal load curtailment.