FUEL_CELL_LINK
Fuel-cell power module adapter for a slow-ramp asset: asymmetric up and down ramps, hydrogen-pressure capability derate, warm-up clamp and minimum-load fail-safe.
When to use it
Use FUEL_CELL_LINK when a fuel-cell power module is dispatched by a microgrid controller and the dispatch must respect what makes a stack different from an engine — a ramp measured in single-digit percent per minute, a minimum current density, a warm-up period, and a hydrogen supply that sets the real capability.
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 | — |
| PARAMS | STRING | — |
| KW_SP | REAL | kW |
| KW_FB | REAL | kW |
| H2_P_FB | REAL | barg |
| STACK_T_FB | REAL | degC |
| FC_READY | BOOL | — |
| LINK_OK | BOOL | — |
| KW_RATED | REAL | kW |
| KW_MIN | REAL | kW |
| RAMP_UP_PCT_MIN | REAL | %/min |
| RAMP_DN_PCT_MIN | REAL | %/min |
| H2_P_LO | REAL | barg |
| H2_P_TRIP | REAL | barg |
| T_MIN_OP | REAL | degC |
| WARMUP_PCT | REAL | % |
| DEV_PCT | REAL | % |
| DEV_TMO | TIME | — |
| ACK | BOOL | — |
Outputs
| Port | Type | Unit |
|---|---|---|
| KW | REAL | kW |
| RAMP_KW_MIN | REAL | kW/min |
| H2_PRESS | REAL | barg |
| KW_CMD | REAL | kW |
| KW_TARGET | REAL | kW |
| KW_MAX_CAP | REAL | kW |
| AVAIL | BOOL | — |
| WARMING_UP | BOOL | — |
| CLAMPED | BOOL | — |
| WRITE_EN | BOOL | — |
| VALID | BOOL | — |
| ALM_LINK | BOOL | — |
| ALM_H2_LO | BOOL | — |
| ALM_DEV | BOOL | — |
| ALM_CFG_ERR | BOOL | — |
IEC 61499 event interface
EI INIT, REQ·EO INITO, CNF
Validation evidence
- Tests
- 8
- Simulated scans
- 344
- 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 FUEL_CELL_LINK — free
Create a free Ri Tech account to download the block. You get the Structured Text body, the Rockwell Add-On Instruction (.L5X), the Schneider Control Expert DFB (.XDB), PLCopen XML, the IEC 61499 function block type (.fbt) and the datasheet.
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Source is never published on this page. The implementation is released to a signed-in Ri Tech account — free of charge, but never anonymously.