Energy Losses

Energy losses are a necessity in the accurate modelling of generators. Bladed gives two possibilities to model these losses, a linear model and a lookup table. More details about these types of losses can be found in the theory section about electrical losses.

Linear Losses

A linear loss model only converts a certain percentage (called the Efficiency) of the applied load into electrical energy. This model also provides a PowerLossAtNoLoad value (given in \(W\)) modelling losses that appear without any load.

"Losses": {
    "PowerLossAtNoLoad": 0.0,
    "Efficiency": 95.0,
    "ElectricalLossesType": "LinearElectricalLosses"
}

lookup Table of Losses

The second model allows the definition of a lookup table for electrical losses. This is defined as a list of pairs of InputPower and associated Loss, both given in \(W\). At the given power level the generator experiences the given amount of lost power. A short example for a lookup-table is shown here:

"Losses":{
    "InputPowerVsLoss":{
        [
            "InputPowerVsLoss":{
                "InputPower": 0, 
                "Loss": 0
            }, 
            "InputPowerVsLoss":{
                "InputPower": 1000000, 
                "Loss": 100000
            }, 
            "InputPowerVsLoss":{
                "InputPower": 3000000, 
                "Loss": 200000
            }
        ]
    }
    "ElectricalLossesType": "NonLinearElectricalLosses"
}