Active frequency adjustment method considering voltage optimization control constraints

The invention provides an active frequency adjustment method considering voltage optimization control constraints. The method comprises the following steps of acquiring the related data of a power grid before and after a direct-current blocking fault of a sending-end power grid; constructing an active and reactive comprehensive optimization mathematical model after the direct-current fault of thesending-end power grid; solving the model by using an interior point method to obtain an active and reactive output optimal solution meeting constraint conditions; and determining the active and reactive output adjustment amount of a generator in a system and the output adjustment amount of a reactive power compensation device after the direct-current fault of the sending-end power grid accordingto the optimization result. According to the method, active power and reactive power are optimized at the same time, the active frequency adjustment after the system direct-current locking fault can be achieved, meanwhile, vol