Frequency Stability Optimization of Receiving-end Grid Based on Pumped Storage

Abstract

When the power fluctuates, the grid frequency will be seriously affected by the dynamic or static frequency characteristics, resulting in severe fluctuations. In order to prevent frequency collapse, this paper establishes the mathematical model of pumped storage condition conversion and combines the theoretical knowledge of pumped storage power station unit condition conversion, and further analysis can be obtained under the condition of emergency low frequency pumped storage condition conversion hydraulic mechanical equivalent model. Finally, based on the fact that the frequency stability of the receiving end power grid can be improved after the support of pumped storage, a simulation model is established by taking an actual receiving end power grid as an example, and the numerical results verify the effectiveness of the proposed model.