RAMP_RATE_LIMITER
PV ramp-rate smoothing by battery counter-injection, with converter clamping, state-of-charge blocking and back-calculated anti-windup.
When to use it
Use RAMP_RATE_LIMITER when an interconnection agreement or a weak feeder limits how fast the site's net export may change, and a battery is to absorb the difference between the array's actual output and a rate-limited reference.
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 | — |
| PV_KW | REAL | kW |
| PV_OK | BOOL | — |
| MAX_KW_MIN | REAL | kW/min |
| BESS_P_MAX | REAL | kW |
| SOC_PCT | REAL | % |
| SOC_OK | BOOL | — |
| SOC_MIN_PCT | REAL | % |
| SOC_MAX_PCT | REAL | % |
| ACK | BOOL | — |
Outputs
| Port | Type | Unit |
|---|---|---|
| BESS_SMOOTH | REAL | kW |
| PV_REF_KW | REAL | kW |
| RAMP_KW_MIN | REAL | kW/min |
| LIMITED | BOOL | — |
| SOC_BLOCKED | BOOL | — |
| VALID | BOOL | — |
| ALM_PV_FAULT | BOOL | — |
| ALM_CFG_ERR | BOOL | — |
IEC 61499 event interface
EI INIT, REQ·EO INITO, CNF
Validation evidence
- Tests
- 7
- Simulated scans
- 267
- 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 RAMP_RATE_LIMITER — free
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