ARBITRAGE_SCHED
Energy arbitrage bias from the price spread, net of round-trip efficiency and a cycle-cost margin.
When to use it
Use ARBITRAGE_SCHED when a battery is exposed to a time-varying energy price with a one-hour-ahead forecast, and it should charge or discharge only when the spread pays for the round-trip losses and the cycle it will spend.
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 | — |
| PRICE | REAL | $/MWh |
| PRICE_FC_1H | REAL | $/MWh |
| SOC | REAL | % |
| SOC_OK | BOOL | — |
| PRICE_OK | BOOL | — |
| EFF_RT | REAL | 0-1 |
| P_RATED_KW | REAL | kW |
| MARGIN | REAL | $/MWh |
| HYST | REAL | $/MWh |
| FULL_SPREAD | REAL | $/MWh |
| SOC_LO_ARB | REAL | % |
| SOC_HI_ARB | REAL | % |
| ACK | BOOL | — |
Outputs
| Port | Type | Unit |
|---|---|---|
| P_ARB | REAL | kW |
| SPREAD_CH | REAL | $/MWh |
| SPREAD_DIS | REAL | $/MWh |
| ARB_STATE | USINT | — |
| ARB_ACTIVE | BOOL | — |
| SOC_CURTAILED | BOOL | — |
| VALID | BOOL | — |
| ALM_PRICE_FAULT | BOOL | — |
| ALM_CFG_ERR | BOOL | — |
IEC 61499 event interface
EI INIT, REQ·EO INITO, CNF
Validation evidence
- Tests
- 11
- Simulated scans
- 74
- 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 ARBITRAGE_SCHED — 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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