Restoration path search method for new energy power system based on improved network weight

Abstract

The invention discloses a new energy power system restoration path search method based on improved network weights: calculate the weight factors of lines, generator nodes and substation nodes, and use them as the basis for selecting lines and nodes in the path search process; based on the nodes to be restored Type, determine the value of the corresponding coefficients of various node weight factors, and calculate the combined weight of nodes to be restored; analyze the requirements of new energy and load access systems, and study the constraints of new energy node restoration and power balance; propose a consideration The improved node combination weights affected by adjacent unrecovered generator nodes increase the chance of generator nodes being searched and speed up the recovery of generator nodes; finally, combined with the proposed improved node combination weights, a breadth-first path search model is established. In the case of the ability to accept new energy in the process of system recovery, the orderly recovery of the new energy power system can be realized.

Description

technical field [0001] The present invention relates to the technical field of orderly recovery of new energy power systems, in particular to a method for searching recovery paths of new energy power systems based on improved network weights. Background technique [0002] With the gradual depletion of traditional fossil energy, the country vigorously develops new energy to meet the needs of human society for energy. However, China's new energy and load are distributed in reverse, so the State Grid Corporation of China vigorously develops UHV DC technology suitable for long-distance and large-capacity power transmission to send new energy to meet the electricity demand of the load center. Taking the Northwest Power Grid as an example, a new energy base cluster represented by Gansu, Xinjiang, and Ningxia is gradually forming a pattern of transmission through the UHV DC group. While supporting the optimal allocation of national resources, the safe and stable operation of the po...

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Problems solved by technology

[0006] The purpose of the present invention is to address the above problems, to propose a new energy power system recovery path search method based on improved network weights, so as to avoid system collapse caused by inappropriate timing and improper recovery of new energy, and to overcome the existing technology Insufficient consideration of new energy consumption in the restoration process

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