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SunSpec Alliance Standard Interface for Anti-Islanding Modules. Brian Seal Technical Executive February 1, 2012. Standard Interface Concept. Any Mechanism (PLC, SynchroPhasor , etc.). Any Inverter. SunSpec Defined Standard Interface. Any Non-Intentional Islanding Module.
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SunSpec Alliance Standard Interface for Anti-Islanding Modules Brian SealTechnical Executive February 1, 2012
Standard Interface Concept Any Mechanism (PLC, SynchroPhasor, etc.) Any Inverter SunSpec Defined Standard Interface Any Non-Intentional Islanding Module
Example Interface Specification 0x01 (start) 19.2KBaud 1 startbit 8 databits No parity 1 stopbit + + Standard Message format: Command CRC1 CRC2 RS232 at the Physical Layer 0x03 (end) Commands: 0x01 = Grid Tied, Primary Configuration 0x02 = Grid Tied, Secondary Configuration 0x03 = Islanded 0x04 = Comms are Good, Normal Heartbeat 0x05 = Comms are Lost
Possible Additional Spec Content • Mechanical Space Allocated (for AI modules inside inverter enclosures) • Mounting • Power Supply (AC? DC?) • Others?