LOAD_FORECAST
Short-term site load forecast blending measured load, a similar-day reference and a weather correction, with an adaptive bias.
When to use it
Use LOAD_FORECAST when a microgrid controller needs 15-minute, 1-hour and 4-hour load forecasts to commit generation or schedule a battery, and a historian or SCADA layer can publish a similar-day reference load for the current and horizon hours.
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 |
|---|---|---|
| KW | REAL | kW |
| DOW | USINT | — |
| HOUR | USINT | — |
| OAT | REAL | degC |
| KW_OK | BOOL | — |
| OAT_OK | BOOL | — |
| SIM_KW | REAL | kW |
| SIM_KW_1H | REAL | kW |
| SIM_KW_4H | REAL | kW |
| SIM_OK | BOOL | — |
| SIM_WR | BOOL | — |
| WE_SCALE | REAL | - |
| BAL_T_C | REAL | degC |
| COOL_KW_PER_C | REAL | kW/degC |
| HEAT_KW_PER_C | REAL | kW/degC |
| PERSIST_TAU_H | REAL | h |
| BIAS_TAU_H | REAL | h |
| BIAS_LIM_KW | REAL | kW |
| FC_DEFAULT_KW | REAL | kW |
| FC_MIN_KW | REAL | kW |
| ACK | BOOL | — |
Outputs
| Port | Type | Unit |
|---|---|---|
| FC_15M | REAL | kW |
| FC_1H | REAL | kW |
| FC_4H | REAL | kW |
| FC_VALID | BOOL | — |
| BIAS_KW | REAL | kW |
| MODEL_KW | REAL | kW |
| REF_HOUR | INT | — |
| ALM_REF_STALE | BOOL | — |
| ALM_MEAS_FAULT | BOOL | — |
| ALM_TIME_BAD | BOOL | — |
| ALM_DEGRADED | BOOL | — |
| ALM_CFG_ERR | BOOL | — |
IEC 61499 event interface
EI INIT, REQ·EO INITO, CNF
Validation evidence
- Tests
- 11
- Simulated scans
- 54
- 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_FORECAST — 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.