Study on technical principles of distribution network planning considering high penetration distributed new energy access

Distributed new energy, as an important development mode of energy transformation, has been developing rapidly under the policy support and its own technical and economic improvement and will have a better development prospect in the future. Due to the obvious volatility, randomness, and intermittency of distributed new energy output, its large-scale access brings certain challenges to the planning and operation of the distribution system. To adapt to the high penetration rate of distributed new energy access, it is urgent to determine the relevant technical principles at the planning level. This paper focuses on analyzing the potential of distributed photovoltaic technology and studying the impact of large-scale distributed new energy access on grid planning and operation, based on which, the study proposes the technical principles of distribution grid planning considering the high penetration of distributed new energy access. It considers the voltage rise caused by distributed new energy access in advance at the planning level, short-circuit current exceeds the limit, and the system is complex to adjust the peak to enhance the performance of distributed new energy and distribution grid. The study proposes the technical principles of distribution network planning, considering the access to distributed new energy with a high penetration rate.