Security Economic Dispatch Of Power System With Environmental Consideration

Along with the growing energy consumption of modern society,the environmental protection problem of power system is becoming more important.In this paper,the environmental impacts of thermal power plants are considered in optimal power flow,and a new method to determine the weight of objective function is proposed.Thermal power plant's geographical location,weather conditions and the impact of population factors are taking into consideration to form a impact factor,and the factors are translated into meaningful penalty factor through the emissions fine,after that the multi-objective optimization problems been translated into a single objective optimization problem.A primal-dual interior point method is used to solve the problem.In order to obtain better results,the Membership Function is used to make a model transformation,and then the traditional interior point method has been improved to enable it to better deal with multi-objective problem.An IEEE30 bus system is used to verify the effectiveness of the algorithm.