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58 lines
1.9 KiB
58 lines
1.9 KiB
# UnitCommitment.jl: Optimization Package for Security-Constrained Unit Commitment
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# Copyright (C) 2020, UChicago Argonne, LLC. All rights reserved.
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# Released under the modified BSD license. See COPYING.md for more details.
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function _add_transmission_line!(
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model::JuMP.Model,
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lm::TransmissionLine,
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f::ShiftFactorsFormulation,
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)::Nothing
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overflow = _init(model, :overflow)
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for t = 1:model[:instance].time
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overflow[lm.name, t] = @variable(model, lower_bound = 0)
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add_to_expression!(model[:obj], overflow[lm.name, t], lm.flow_limit_penalty[t])
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end
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return
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end
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function _setup_transmission(
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model::JuMP.Model,
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formulation::ShiftFactorsFormulation,
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)::Nothing
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instance = model[:instance]
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isf = formulation.precomputed_isf
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lodf = formulation.precomputed_lodf
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if length(instance.buses) == 1
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isf = zeros(0, 0)
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lodf = zeros(0, 0)
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elseif isf === nothing
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@info "Computing injection shift factors..."
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time_isf = @elapsed begin
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isf = UnitCommitment._injection_shift_factors(
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lines = instance.lines,
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buses = instance.buses,
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)
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end
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@info @sprintf("Computed ISF in %.2f seconds", time_isf)
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@info "Computing line outage factors..."
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time_lodf = @elapsed begin
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lodf = UnitCommitment._line_outage_factors(
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lines = instance.lines,
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buses = instance.buses,
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isf = isf,
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)
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end
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@info @sprintf("Computed LODF in %.2f seconds", time_lodf)
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@info @sprintf(
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"Applying PTDF and LODF cutoffs (%.5f, %.5f)",
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formulation.isf_cutoff,
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formulation.lodf_cutoff
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)
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isf[abs.(isf).<formulation.isf_cutoff] .= 0
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lodf[abs.(lodf).<formulation.lodf_cutoff] .= 0
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end
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model[:isf] = isf
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model[:lodf] = lodf
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return
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end
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