DROOP_KW
Speed droop characteristic — the governor speed reference falls in proportion to real load, typically 3–5 %.
When to use it
Use DROOP_KW when machines are paralleled on droop rather than on a share line, or a set runs in droop against a utility, and the governor needs a speed-reference offset that is a straight-line function of its own real loading.
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 | — |
| KW | REAL | kW |
| KW_RATED | REAL | kW |
| KW_OK | BOOL | — |
| DROOP_PCT | REAL | % |
| F_NOM | REAL | Hz |
| OFFSET_LIM_PCT | REAL | % |
| ACK | BOOL | — |
Outputs
| Port | Type | Unit |
|---|---|---|
| F_OFFSET | REAL | Hz |
| F_REF | REAL | Hz |
| PCT_LOAD | REAL | % |
| MOTORING | BOOL | — |
| AT_LIMIT | BOOL | — |
| VALID | BOOL | — |
| ALM_KW_FAULT | BOOL | — |
| ALM_CFG_ERR | BOOL | — |
IEC 61499 event interface
EI INIT, REQ·EO INITO, CNF
Validation evidence
- Tests
- 8
- Simulated scans
- 30
- 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 DROOP_KW — free
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