摘要

With large-scale power grids going highly-capacitive, close-coupled and sophisticated, automatic voltage control (AVC) is getting increasingly difficult as can be seen in control mismatch problems between multi-level dispatch centers in engineering practice. The principal manifestations, causes and harm of multi-level voltage control mismatch in large-scale power grids are summarized. Based on an analysis of the essence and mechanism of multi-level voltage control mismatch in large-scale power grids, a game model is presented to describe the problem of multi-level voltage control mismatch. A case study on Nash equilibrium and cooperative game analysis for AVC is employed to show that it's advisable to explain the mismatch mechanism of voltage control and solve the mismatch problem via game modelling.

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