A Dual-Set Path Recovery Model of Power System Considering the Volatility and Randomness of New Energy Unit Output

Abstract

The access to large-scale new energy power generation has caused huge changes in the energy pattern of the power system, and it has also put forward new requirements for system recovery after large-scale power outages. As a type of generator with a sufficiently large proportion, the volatility and randomness of the output of new energy unit have a greater impact on the recovering system. In this paper, the system recovery path is adjusted through the radiation effect of the generator node to reduce the time it takes for the generator node to recover. At the same time, with the help of the frequency stability constraints of the system during the recovery process, a dual-set path recovery model is proposed to distinguish the recovery of the new energy unit nodes from the actual grid connection of the new energy unit, so as to avoid other stability problems due to the volatility and randomness of the output of the new energy generator during the recovery process. This paper provides a new way of thinking for the study of system recovery after widespread power outages in the system. Finally, the practicality of the proposed method is verified by an example of an actual system.