Somalia Energy Storage Frequency Modulation Power Station

How to control frequency modulation of energy storage battery?

By adjusting the output of the energy storage battery according to the fixed sagging coefficient, the power can be quickly adjusted and has a better frequency modulation effect. Based on the adaptive droop coefficient and SOC balance, a primary frequency modulation control strategy for energy storage has been recommended .

What is dynamic frequency modulation model?

The dynamic frequency modulation model of the whole regional power grid is composed of thermal power units, energy storage systems, nonlinear frequency difference signal decomposition, fire-storage cooperative fuzzy control power distribution, energy storage system output control and other components. Fig. 1.

How to evaluate frequency modulation performance under a control strategy?

Similarly, under external perturbations, the frequency modulation power change evaluation method is similar to frequency, the corresponding average value of power fluctuation is adopted Pm, power peak difference Δ P, the overall degree of power fluctuation Psd evaluates the frequency modulation performance under the corresponding control strategy.

What are the regional power grid model parameters?

The regional power grid model parameters are shown in Table 1. The model includes an equivalent traditional unit of 250 MW and an energy storage station composed of three types of energy storage. The energy storage parameters are shown in Table 2. Among them, the units of k1, k2, and k3 are yuan· (MW) −1 and yuan· (MWh) −1, respectively.