Research on Modeling Method of Electromechanical Simulation Model for Control System of Electrochemical Energy Storage Power Station

Abstract

Electrochemical energy storage has the advantages of flexible adjustment of active and reactive power and fast response speed. It can provide peak regulation, frequency modulation, voltage regulation, transient reactive power support and other services for power grid operation, which can effectively improve the flexibility and safety of power grid operation. The relevant standards put forward the grid-connected performance test requirements for it. How to establish a simulation model that can truly reflect the actual regulation characteristics of energy storage power stations is of great significance for accurately evaluating the support effect of its access to the grid. In this paper, the field measurement of the performance of the energy storage control system and the establishment of the electromechanical simulation model are discussed. A parameter identification method based on response characteristic matching is proposed. The field test comparison shows that the proposed method can obtain a simulation model with a high degree of agreement with the measured characteristics, which has certain engineering application value.