A novel method for energy storage sizing based on time and frequency domain analysis

Energy Storage Power and Energy Sizing and Specification Using HSSPFC

“…Droop control in (26) can operate without communication and load information however, the bus voltage may suffer for lack of communication for long duration of time. A secondary controller can update the droop settings in (26) periodically to adjust the bus voltage level with respect to the load [8]. If I db and I qb represent the load currents, the injected currents from DGUs are shared according to…”

“…In this section, the overall approach is to share the ESS power according to BESS and FESS bandwidth support capabilities by defining appropriate power sharing metrics. The power sizing of the ESSs is determined from the power spectrum of the reference power signal using the Power Spectral Density (PSD) of the ESS response [26]. On the other hand, the energy sizing is performed by analysis of the time-domain requirements.…”

“…The results are shown in Figures 3-13 for a single ESS element with first-order model in (33a). In the second example, the system in Figure 2, under primary droop control in (26), secondary control in (31) and Hamiltonian control in (25) is simulated. In this example, the steps in Section 8 are followed for load and source profiles shown in Figure 14.…”