Power system optimal power flow method based on feedback learning cuckoo algorithm

Abstract

The invention makes a request of protecting a power system optimal power flow method based on a feedback learning cuckoo algorithm. The method comprises: a power system optimal power flow model is established and a correlation algorithm parameter is set; original data are inputted and an initial population is generated; power flow calculation is carried out by using a Newton-Raphson method to obtain voltages of all nodes and power distribution in a power grid; fitness function values of all individuals in the population are calculated, and if the fitness value of a new individual is smaller than that of a previous generation individual, the new individual is used for replacing the previous generation individual; statistics of the number of the new individuals superior to the previous generation individual in all populations is carried out to obtain a population improvement rate that is used as a feedback value; a global optimal individual is kept and the populations are updated based on an updated formula of a cuckoo search algorithm; and whether a termination condition is met is determined; and if so, iteration is stopped and a final result is outputted. With the method, the generation fuel cost and the voltage deviation objective function are reduced; and the operating cost of the grid can be reduced based on high security and reliability.

Description

technical field [0001] The invention relates to the technical field of optimized dispatching in power systems, to the technical field of power system optimized power flow schemes, and in particular to a power system optimized power flow method based on feedback learning cuckoo algorithm. Background technique [0002] The electric power industry is an important basic industry of the national economy and a key and leading industry in the national economic development strategy. Its development meets the needs of social progress and continuous improvement of people's living standards. Therefore, the safety, stability and economic operation of the power system are inevitable. Require. The power distribution of the power grid directly affects the safety, stability and economy of the power system. Power system optimization power flow is one of the core tasks in power system operation, and perfecting power system optimal dispatch has important theoretical and practical significance...

AI Technical Summary

Problems solved by technology

However, in the iterative process of the typical cuckoo algorithm, these two control parameters are fixed and cannot change with the search space

At present, the common processing method is that the control parameters decrease or increase according to a certain rule with the increase of the number of iterations, but these methods are still determined before the simulation, and cannot be actively adjusted according to the actual simulation process.

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