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Offset available power by dc-generated battery charge (#2735)

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andig 2022-03-17 15:38:05 +00:00 • committed by GitHub
parent c6fdbc07c3
commit 38defb679e
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1 changed files with 7 additions and 5 deletions
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12
core/helper.go
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@ -23,13 +23,15 @@ func powerToCurrent(power float64, phases int) float64 {
return power / (float64(phases) * Voltage)
}
// consumedPower estimates how much power the charger might have consumed given it was the only load
// func consumedPower(pv, battery, grid float64) float64 {
// return math.Abs(pv) + battery + grid
// }
// sitePower returns the available delta power that the charger might additionally consume
// negative value: available power (grid export), positive value: grid import
func sitePower(grid, battery, residual float64) float64 {
// For hybrid inverters, battery can be charged from DC power in excess of
// inverter AC rating. This must be offset by the grid consumption when calculating
// available site power.
// (https://github.com/evcc-io/evcc/issues/2734)
if grid > 0 && battery < 0 && grid-battery > 50 {
battery = 0
}
return grid + battery + residual
}