| |
| |
| |
|
|
| 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 |
|
|
