Table 8 Summary of investigated MGs in North America
MG project | Country | Voltage level (kV) | Mode of operation | Load (MWA) | DERs types and ratings (technical characteristics) | Protection scheme | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Grid-connected | Islanded | PV | ESS | Diesel | Fuel cell | Wind | Hydro | Steam | Gas | |||||
Electric Power Board MG | USA | 12.47 | ✓ | ✓ | NR* | 1.3 MW | * | NR | SEL-751 protection IntelliRupter (directional overcurrent protection) | |||||
Santa Rita Jail MG | USA | 12.47 | ✓ | ✓ | 6.6 | 1.2 MW | 4 MWh | 2.4 MW | 1 MW | 11.5 kW | Over-/Under- voltage Over-/Under- frequency Directional overcurrent | |||
Illinois Institute of Technology MG | USA | 4.16 | ✓ | ✓ | 12 | 300 kW | 500 kWh | 4 MW | 8 | |||||
kW | 8 MW | Hierarchical scheme Over-/Under- voltage, Over-/Under- frequency, and Directional overcurrent Differential protection Adaptive overcurrent protection Traditional overcurrent protection | ||||||||||||
Borrego Springs MG | USA | 12 | ✓ | ✓ | 4.6 | 700 kW | 1.5 MWh | 3.6 MW | Voltage-restrained overcurrent protection | |||||
Guásimas del Metate MG | Mexico | 0.22 | ✓ | NR | 45.9 kW | Inverters’ self-protection Undervoltage protection Voltage balance protection Volts-hertz protection | ||||||||
Tierra Blanca del Picacho MG | Mexico | 0.22 | ✓ | NR | 45.9 kW | Inverters’ self-protection Undervoltage protection Voltage balance protection Volts-hertz protection | ||||||||
British Columbia Hydro MG | Canada | 25 | ✓ | ✓ | 3 | 14 MW | Adaptive overcurrent protection | |||||||
British Columbia Institute of Technology MG | Canada | 12.47 | ✓ | ✓ | 17.9 | 300 kW | 550 kWh | 10 kW | 250 kW | Differential protection | ||||