Add TwoTerminalVSC formulation#118
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April 29, 2026 15:50
combine ModelConstruct stages for both formulations only add linear loss formulations for devices with non-zero linear loss
Add two new formulations for PSY.TwoTerminalVSCLine: HVDCTwoTerminalVSC (NLP) and HVDCTwoTerminalVSCBin2 (SOS2 MILP). Both model independent active/reactive power control per terminal under a PQ capability circle, quadratic+linear converter losses, and explicit cable resistance via v_f - v_t = (1/g)*I. Reactive variables/constraints are added only on full AC networks. Refactor shared converter-loss helpers (loss expression builder, abs-value decomposition, linear-loss detection) out of mt_hvdc_models into src/common_models/quadratic_converter_loss.jl so the multi-terminal and two-terminal VSC paths reuse the same primitives. Rename the ConverterPositiveCurrent / NegativeCurrent / CurrentDirection variable types to generic PositiveCurrent / NegativeCurrent / CurrentDirection. Point Project.toml at the InfrastructureOptimizationModels ac/hvdc-vsc branch (which carries the per-device-bounds API used by these formulations) and restore runtests.jl to run the full test list.
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Opened new PR that merges into ac/hvdc |
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Requires IOM Sienna-Platform/InfrastructureOptimizationModels.jl#99
This will be merged into #103 first