Design of Optimization System for Relay Protection Setting of Distribution Network Based on Improved Genetic Algorithm

This paper proposes a design method of distribution network relay protection setting optimization system based on improved genetic algorithm. Firstly, the limitations of the traditional genetic algorithm in the optimization process are analyzed for the complexity and adaptability problems in the process of distribution network relay protection rectification, and targeted improvement measures are proposed. The convergence speed and global search ability of the algorithm are improved by optimizing the operations of selection, crossover and mutation. Then, the fitness function is designed to better meet the actual needs of relay protection setting, and an integrated optimization system is developed for automated calculation and verification of relay protection setting values. The system test results show that the optimization system has significant advantages in improving the reliability and efficiency of relay protection setting, which provides a strong guarantee for the safe and stable operation of distribution networks.