Research summary on fault location technology of power distribution network based on intelligent algorithm

With the development of social economy, it is of great significance to study the distribution network fault detection and positioning technology to improve the reliability of power supply. This paper describes the common methods, including signal injection method, impedance method, ratio method, traveling wave method and intelligent algorithm. At the same time, the advantages and disadvantages of these methods, the application scope and the practical application effect are compared and sorted out. The results show that the intelligent algorithm has good speed, accuracy and fault tolerance in the fault location of the distribution network. Subsequently, the principle and application of intelligent algorithm are elaborated in detail, and the neural network, ant colony algorithm and different fault location algorithms based on HHT and genetic algorithm are listed. The core technology points of these algorithms are introduced one by one, showing the strong advantages of intelligent algorithm in the fault positioning of the distribution network. To sum up, intelligent algorithm is likely to become an important technical means for fault positioning of distribution network in the future, and has important theoretical and research significance for power grid security and technical development.