Micro-Grid Control CentreNerve Centre

of the Test-Bed

Electricity supply to end-users is controlled via the bi-directional inverter. The operation of the hybrid generators and charging/ discharging of the battery bank are controlled by the bi-directional inverter. There are three common scenarios:

Clear Sunny Sky

DAY-TIME OPERATION

The energy demand of each micro-grid cluster will first be met by grid-tied solar PV panels and, if required, the battery bank until it is 35% discharged. Beyond this point, the hybrid generators will be started to meet the energy demand of the micro-grid clusters.

Heavy Cloud Cover

This can cause a sudden drop in output from solar PV panels. When this happens, the battery bank will compensate for the loss in PV energy generation from grid-tied solar PV panels until the battery bank is discharged to 35%. Beyond this point, additional hybrid generators will be started to meet the energy demand of the micro-grid clusters.

After Sunset

NIGHT-TIME OPERATION

The battery bank will be discharged to 35% before hybrid generators are started to supply electricity to meet the demand of the micro-grid clusters.

Why does the test-bed adopt a ring structure grid design?