LOAD_RESTORE_SEQ
Staged load restoration: one block at a time, each gated on generation headroom and on frequency holding stable for a dwell, with a back-off on instability.
When to use it
Use LOAD_RESTORE_SEQ when an island has been stabilised by shedding and load must be put back in blocks — never all at once — with the frequency response to each block proving the machines can carry the next one.
Interface
The published port signature. This is the whole of what the block exposes to your program — the implementation body is not shown here and ships with the download.
Inputs
| Port | Type | Unit |
|---|---|---|
| ENABLE | BOOL | — |
| START | BOOL | — |
| HOLD | BOOL | — |
| ABORT | BOOL | — |
| FREQ | REAL | Hz |
| FREQ_OK | BOOL | — |
| F_MIN | REAL | Hz |
| STABLE_T | TIME | — |
| BLOCK_KW | REAL | kW |
| N_BLOCKS | USINT | — |
| HEADROOM_KW | REAL | kW |
| MARGIN_KW | REAL | kW |
| ACK | BOOL | — |
Outputs
| Port | Type | Unit |
|---|---|---|
| BLOCK | USINT | — |
| BLOCK_ON | BOOL | — |
| RESTORED_KW | REAL | kW |
| DONE | BOOL | — |
| DWELLING | BOOL | — |
| HOLDING | BOOL | — |
| ALM_UNSTABLE | BOOL | — |
| ALM_NO_HEADROOM | BOOL | — |
| ALM_FREQ_FAULT | BOOL | — |
| ALM_CFG_ERR | BOOL | — |
IEC 61499 event interface
EI INIT, REQ·EO INITO, CNF
Validation evidence
- Tests
- 9
- Simulated scans
- 286
- Simulator
- v0.1.0
Complete IEC 61131-3 implementation with a published test suite that runs on the vplant simulator. The counts above are that suite, executed on this build.
- Conforms to IEC 61131-3
- Conforms to IEC 61499
Download LOAD_RESTORE_SEQ — free
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