Research on Control Strategy and Energy Storage Capacity Allocation of Multi-source Joint Frequency Modulation

In order to improve the utilization rate of new energy, such as wind power and photovoltaic has been widely used, but it also brings great challenges to the frequency modulation of the power system. In this paper, the energy storage capacity of the multi-source combined system is reasonably configured to improve the overall economy of the system while concerning the frequency stability. Firstly, the control strategy and energy storage capacity optimization model of multi-source joint frequency modulation system are analyzed. Secondly, MOPSO algorithm is used to solve the energy storage capacity optimization problem of multi-source joint system. Finally, a comparative analysis is carried out under the two experimental conditions. It is verified that the energy storage results not only meet the needs of frequency modulation, but also take into account the overall economy of the system.