Reactive power optimization of AC and DC system based on improved genetic algorithm

Abstract

In the context of the rapid development of DC transmission, this paper studies the multi-objective reactive power optimization of AC and DC transmission systems. By studying the relevant basic knowledge, it provides a theoretical basis for studying reactive power optimization of AC-DC distribution networks. This paper provides an improved genetic algorithm that uses node voltage offset and total active network loss as two objective functions. A fast non-dominated sequencing genetic algorithm with elite strategy NSGAII is applied to the multi-target reactive power of AC and DC systems. During the optimization, a corresponding reactive power optimization program was written, and the feasibility of the proposed method was verified by an example of the IEEE 9-node system.