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UnitCommitment.jl/src/model/formulations/base/structs.jl

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# UnitCommitment.jl: Optimization Package for Security-Constrained Unit Commitment
# Copyright (C) 2020, UChicago Argonne, LLC. All rights reserved.
# Released under the modified BSD license. See COPYING.md for more details.
abstract type TransmissionFormulation end
abstract type RampingFormulation end
abstract type PiecewiseLinearCostsFormulation end
abstract type StartupCostsFormulation end
abstract type StatusVarsFormulation end
abstract type ProductionVarsFormulation end
struct Formulation
prod_vars::ProductionVarsFormulation
pwl_costs::PiecewiseLinearCostsFormulation
ramping::RampingFormulation
startup_costs::StartupCostsFormulation
status_vars::StatusVarsFormulation
transmission::TransmissionFormulation
function Formulation(;
prod_vars::ProductionVarsFormulation = Gar1962.ProdVars(),
pwl_costs::PiecewiseLinearCostsFormulation = KnuOstWat2018.PwlCosts(),
ramping::RampingFormulation = MorLatRam2013.Ramping(),
startup_costs::StartupCostsFormulation = MorLatRam2013.StartupCosts(),
status_vars::StatusVarsFormulation = Gar1962.StatusVars(),
transmission::TransmissionFormulation = ShiftFactorsFormulation(),
)
return new(
prod_vars,
pwl_costs,
ramping,
startup_costs,
status_vars,
transmission,
)
end
end
"""
struct ShiftFactorsFormulation <: TransmissionFormulation
isf_cutoff::Float64
lodf_cutoff::Float64
precomputed_isf::Union{Nothing,Matrix{Float64}}
precomputed_lodf::Union{Nothing,Matrix{Float64}}
end
Transmission formulation based on Injection Shift Factors (ISF) and Line
Outage Distribution Factors (LODF). Constraints are enforced in a lazy way.
Arguments
---------
- `precomputed_isf::Union{Matrix{Float64},Nothing} = nothing`:
the injection shift factors matrix. If not provided, it will be computed.
- `precomputed_lodf::Union{Matrix{Float64},Nothing} = nothing`:
the line outage distribution factors matrix. If not provided, it will be
computed.
- `isf_cutoff::Float64 = 0.005`:
the cutoff that should be applied to the ISF matrix. Entries with magnitude
smaller than this value will be set to zero.
- `lodf_cutoff::Float64 = 0.001`:
the cutoff that should be applied to the LODF matrix. Entries with magnitude
smaller than this value will be set to zero.
"""
struct ShiftFactorsFormulation <: TransmissionFormulation
isf_cutoff::Float64
lodf_cutoff::Float64
precomputed_isf::Union{Nothing,Matrix{Float64}}
precomputed_lodf::Union{Nothing,Matrix{Float64}}
function ShiftFactorsFormulation(;
isf_cutoff = 0.005,
lodf_cutoff = 0.001,
precomputed_isf = nothing,
precomputed_lodf = nothing,
)
return new(isf_cutoff, lodf_cutoff, precomputed_isf, precomputed_lodf)
end
end