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43c68a3 | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 | # 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.
function _add_transmission_line!(
model::JuMP.Model,
lm::TransmissionLine,
f::ShiftFactorsFormulation,
sc::UnitCommitmentScenario,
)::Nothing
overflow = _init(model, :overflow)
for t in 1:model[:instance].time
overflow[sc.name, lm.name, t] = @variable(model, lower_bound = 0, base_name = "overflow_$(sc.name)_$(lm.name)_$(t)")
add_to_expression!(
model[:obj],
overflow[sc.name, lm.name, t],
lm.flow_limit_penalty[t] * sc.probability,
)
end
return
end
function _setup_transmission(
formulation::ShiftFactorsFormulation,
sc::UnitCommitmentScenario,
)::Nothing
isf = formulation.precomputed_isf
lodf = formulation.precomputed_lodf
if length(sc.buses) == 1
isf = zeros(0, 0)
lodf = zeros(0, 0)
elseif isf === nothing
@info "Computing injection shift factors..."
time_isf = @elapsed begin
isf = UnitCommitment._injection_shift_factors(
buses = sc.buses,
lines = sc.lines,
)
end
@info @sprintf("Computed ISF in %.2f seconds", time_isf)
@info "Computing line outage factors..."
time_lodf = @elapsed begin
lodf = UnitCommitment._line_outage_factors(
buses = sc.buses,
lines = sc.lines,
isf = isf,
)
end
@info @sprintf("Computed LODF in %.2f seconds", time_lodf)
@info @sprintf(
"Applying PTDF and LODF cutoffs (%.5f, %.5f)",
formulation.isf_cutoff,
formulation.lodf_cutoff
)
isf[abs.(isf).<formulation.isf_cutoff] .= 0
lodf[abs.(lodf).<formulation.lodf_cutoff] .= 0
end
sc.isf = isf
sc.lodf = lodf
return
end
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