SourceLoad

Model interface of SourceLoad

This component represents either a source (injection) or a load (extraction). To extend the definition, for instance, a source can be a powerplant or a photovoltaic panel, whilst a load could be the demand of hydrogen of a building.

Thus, an imposed flow of energy or material can be inserted as input for:

Power for electrical or thermal carriers
Flow rates for fluids, biomass, etc.

Main Features

MaxFlow limits the absolute value of injected or extracted flow.
Different strategies of load handling can be implemented:
- Load Shedding: optional load shedding model for demand-side management (available only for loads, compatible with Rolling Horizon usage).
- Peak Shaving: optional peak shaving model for demand-side management (available only for loads).
- Optimization of Price or Size: - Can optimize the size (capacity) or the price signal for injected/extracted flow.

Caution

Load shedding and peak shaving can be used together but as the cost associated to peak shaving is yearly, it can be used to reduce the cost of load shedding, especially if the cost linked to load shedding is time dependent.

Focus

Load shedding:

Fig. 58 Load Shedding Graphics

This method introduces optional load shedding capability for a load component. Load shedding represents the deliberate reduction of demand when it’s beneficial or necessary (e.g., during system stress or high price events). This model could be used for

Demand Response modeling
Robust optimization scenarios with load flexibility
Scenario analysis for energy-constrained systems
Peak Shaving:

Fig. 59 Peak Shaving Graphics

This method introduces optional peak shaving capability for a load component. Peak shaving represents the redistribution of charge when a peak is highlighted, over hours where load is less important. The imposed flow (ImposedFlow) can be balanced in this way: it can be increased or decreased by MaxEffect but the total energy over the period TimeSpan must be conserved.

The imposed quantity depends on the connected energy vector.

ImposedFlow defines the input data on which to apply flexibility:

ImposedFlow: the time distribution to be balanced using flexibility.

Generated Variables and Expressions

Variables for controlled or weighted flux, shedding, and reactive power.
Expressions for:
- Total imposed flux
- Input and output powers
- Costs (regular and shedding)

Expressions table of SourceLoad

See also Expressions table of TechnicalSubModel for generic options

Table. 22 SourceLoad
Expression name	Unit	Mandatory	Description
FluxWeight	Unit	mUseWeightedFlux	Input expression for flux weighting if mUseWeightedFlux=true
SourceLoadFlow	FluxUnit	true	Computed or Controlled Imposed flow injected (source) or extracted (sink) - Positive value means injection for Source field and extraction for Sink field
WeightedImposedFlux	FluxUnit	true
OUTPUTFlux1	FluxUnit	true	Computed output power output port 1
INPUTFlux1	FluxUnit	mAddHeatConsumerModel	Computed output power output port 1
ReactivePower	FluxUnit	mAddStaticCompensation	Reactive power associated to the production of the source load. If static compensation is not given it is an optimized factor
PowerPeakShaving	PowerUnit	mAddPeakShavingDetailed
PowerShedding	PowerUnit	mAddSheddingDetailed
CostShedding	true