Table 1 System parameters for MATLAB simulation of PV and battery Systems.

From: Enhancing microgrid resilience through integrated grid-forming and grid-following inverter strategies for solar PV battery control and fault ride-through

Parameter

Value

Description

PV System Parameters

  

Solar Irradiance

1000 W/m2

Standard solar irradiance value

Temperature

25 °C

Ambient temperature

PV System Capacity

120 MW

Total power output capacity of the PV system

PV Inverter

144 MVA

Rated power capacity of the PV inverter

Number of PV Panels

150

Number of series-connected cells in each panel

Number of Cells in Series

10

Number of cells connected in series in each panel

Number of Parallel Strings

200

Number of parallel strings in the PV array

Series Panels per String

120

Number of panels connected in series per string

Battery Storage System (BESS)

  

Battery Energy Capacity

70 MWhr

Total energy storage capacity of the battery system

Battery Power Rating

580.82 MW

Continuous power rating for the battery system

Battery Inverter

82 MVA

Rated power capacity of the battery inverter

Battery Cell Voltage

14 V

Voltage of each battery cell

Number of Cells in Series (Battery)

500

Number of cells connected in series in the battery pack

Inverter Control Parameters

  

PV Inverter Efficiency

95%

Efficiency of the PV inverter

Battery Inverter Efficiency

95%

Efficiency of the battery inverter

Power Conversion Equipment

  

PV Inverter Output Voltage

4.2 kV

Output voltage of the PV inverter

Battery Inverter Output Voltage

24.9 kV

Output voltage of the battery inverter

Energy Management System (EMS)

  

Control Algorithm

Droop Control, VSM

Control strategies for managing energy storage and PV power output

Fault Ride-Through (FRT) Control

Enabled

Ability of the system to maintain operation during faults

Grid Connection

  

Grid Voltage (PCC)

400 V

Voltage at the point of common coupling (PCC)

Grid Frequency

50 Hz

Frequency at the grid connection point

System Voltage Regulation

  

Voltage Regulation (GFM)

± 10%

Regulation tolerance for the GFM inverter voltage

Dynamic Control Parameters

  

Active Power Control

PI Control

Proportional-integral controller for active power management

Reactive Power Control

PI Control

Proportional-integral controller for reactive power management

Frequency Support

Virtual Synchronous Machine (VSM)

VSM used for stabilizing grid frequency during transient conditions

Fault Ride-Through Mechanism

  

Fault Type

Short Circuit, Voltage Sag

Fault scenarios considered for the fault ride-through tests

Power Reserve for Faults

20% of nominal power

Reserve power maintained during grid faults to support restoration