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Different types of distributed generation have different grid-connected modes, control links and basic models, and each type has different effects on 10kV power grid, so corresponding models should be established to analyse it. This paper focuses on the research of inverter-based distributed generation, and analyses the impact of different capacity, installation position and fault location on the protection device.

The report of the 20th National Congress of the Communist Party of China pointed out that improving the scientific and technological innovation system, stimulating innovation vitality, accelerating the implementation of innovation-driven development strategies, promoting the deep integration of the innovation chain, industry chain, capital chain, and talent chain, opening up new fields and new tracks for development, and constantly shaping development New kinetic energy and new advantages.This paper studies and sorts out the new opportunities and existing problems of electric power enterprises, and analyze the necessity of adopting a diversified strategic development. The study believes that under the situation of continuous advancement of power reform, whether the development strategy adapts to the situation of the times will have a direct impact on the economic and social benefits of power companies.

The distribution loss of the distribution network has changed greatly because of the access of distributed generation, which has a certain impact on the power quality of the distribution network. In order to solve the above problems, this paper constructs a 10 kV grid model containing distributed generation, studies the impact of distributed generation on the distribution of network loss, and grasps the characteristics of network loss changes under different scales of distributed generation and different grid-connected conditions. Finally, this paper constructs a mathematical model containing distributed generation and proposes control measures to ensure the safe and stable operation of the grid.