The DCSR (AFLC Application) provides a targeted method of reducing the power consumption to AS 4755 compliant appliances such as air conditioners. This gives electricity network operators the ability to reduce overall power consumption at critical times during peak load.
The Generation Signalling Device (GSD) provides a means of controlling the generation capability of AS4777 compliant solar inverters during emergency situations by asserting DRM0 on the inverter DRED port when the level of renewable generation becomes a threat to grid stability. This provides electricity network operators the ability to implement emergency protocols to ensure continuity of supply when the only alternative would otherwise be widespread power outages for customers.
As the Generation Signalling Device is based on ripple control technology, this unit receives Audio Frequency Load Control (AFLC) signals to directly activate the appropriate inverter generation modes.
The GSD is capable of activating two different levels of generation limiting on AS 4777 compliant solar inverters:
1. DRM0 which completely disconnects the inverter from the electricity grid. The minimum required to meet the Australian standard AS 4777
2. DRM6 which limits the inverter generating capacity to 50% of the average output measured over the last 5 minutes.
If connecting to a Fronius SnapINverter a DRM interface is required (FROSNAPDRM). If connecting to a Fimer UNO-DM inverter the UNO-DM-COM-KIT is required.
For more information visit www.energex.com.au/emergency backstop and www.ergon.com.au/emergencybackstop