Table 4 Data of the BES

Battery bank voltage

2000 V

Battery inner resistance \({(R}_{int})\)

0.004 Ω

DC link voltage

2000 V

Battery bank capacity

200 MWh

Initial SoC

100%

DC link capacitor

12,500 μF

Converter output voltage

1000 V

Switching frequency

1.98 kHz

IGBT snubber resistance

10⁶ ohms

IGBT snubber capacitance

Inf F

IGBT conduction resistance

10^–3 Ω

IGBT forward voltage

0 V

Diode forward voltage

0 V

Inductance filter

157 mH

Proportional gain of voltage PI regulator (K_Pi)

2

Integral gain of voltage PI regulator (K_ii)

400

Proportional gain of current PI regulator (K_Pu)

0.3

Integral gain of current PI regulator (K_iu)

20