Research on Optimal Configuration Technology of Network Energy Storage Based on Scenario Generation

Large scale renewable energy sources, such as wind power and photovoltaic, are connected to the power grid, and grid structured energy storage has a good application prospect in peak shaving and valley filling of the power grid. As the key technology of new auxiliary renewable energy generation, grid energy storage system has been widely used. This paper takes application scenario analysis as the basic theory, and generates typical application scenarios for historical power generation data. And on the basis of application scenarios, we propose scenario generation technology that takes into account the time correlation. Because of the emergence of more and more new energy stations, the power grid may show a trend of weak power grid, so the role of the condenser will be particularly important in the future power grid, which can make up for the cause of reactive power loss caused by too many new energy stations. However, its disadvantage is that the fraud is too high, which can be reduced by the iteration of technology, so the energy storage battery is also a very important technology, which can be used for large-scale storage of electricity, so that the electricity of new energy stations becomes more meaningful.Finally, we propose the optimal configuration method of grid structured energy storage in different application scenarios, and establish a unified life model of energy storage batteries and a comprehensive income model for optimal configuration of grid structured energy storage considering multiple factors. Through example analysis, it shows that the comprehensive income obtained by the expected value model based on multiple scenarios is higher than that obtained by the determined scenarios, The effectiveness of the proposed method is verified.