Problem Specifications

ACDCPF

PF with support for AC and DC grids at the same time, including AC/DC converters.

Generic AC DC Power Flow

The general purpose ac dc power flow solver in PowerModelsACDC is,

PowerModelsACDC.solve_acdcpf — Function

solve_acdcpf(file::String, model_type::Type, solver; kwargs...)

Parse an input file and solve an AC/DC power flow (ACDCPF) problem using the specified PowerModels formulation and solver.

Arguments

file::String : Path to the input data file (e.g., MATPOWER .m file).
model_type::Type : PowerModels model type (e.g., ACPPowerModel, SOCBFPowerModel).
solver : JuMP solver object or solver factory (e.g., Ipopt).
kwargs... : Optional keyword arguments forwarded to the underlying solver entry point (settings, reference extensions, etc.).

Returns

A solution dictionary (as returned by PowerModels) containing results such as objective value, variable values and solver termination status.

Behavior

This function parses the provided file into a data dictionary, performs any additional data processing (via process_additional_data!) and delegates to solve_acdcpf(data::Dict, ...). By default, reference extensions for DC grid, PST, SSSC, flexible loads and DC generators are applied.

source

solve_acdcpf(data::Dict{String,Any}, model_type::Type, solver; kwargs...)

Solve an AC/DC power flow problem from an already-parsed data dictionary.

Arguments

data::Dict{String,Any} : Parsed network data dictionary (PowerModels format).
model_type::Type : PowerModels model type to build the JuMP model.
solver : JuMP solver object or factory.
kwargs... : Forwarded keyword arguments (settings, ref_extensions override, etc.).

Returns

A solution dictionary produced by the PowerModels solve pipeline.

Behavior

Builds and solves the problem using the power model solve entry point (_PM.solve_model). This wrapper applies the same set of default reference extensions as the file-based entrypoint. Use ref_extensions in kwargs to override or add additional references.

source

This function builds a JuMP model for a wide variety of the power flow formulations supported by PowerModelsACDC.

Sequential AC DC Power Flow (Native)

The sequential ac dc power flow solver in PowerModelsACDC uses the package NLSolve for solving the AC DC power flow problem in ACPPowerModel formulation sequentially.

PowerModelsACDC.solve_sacdcpf — Function

This function solves sequential ac-dc power flow

source

Tip

If run_sacdcpf fails to converge try run_acdcpf instead.

ACDCOPF

OPF with support for AC and DC grids at the same time, including AC/DC converters.

Variables

variable_voltage(pm)
variable_generation(pm)
variable_branch_flow(pm)

Objective

objective_min_operational_cost(pm)

Constraints


variable_active_dcbranch_flow(pm)
variable_dcbranch_current(pm)
variable_dc_converter(pm)
variable_dcgrid_voltage_magnitude(pm)

constraint_voltage(pm)
constraint_voltage_dc(pm)

for i in _PM.ids(pm, :ref_buses)
    constraint_theta_ref(pm, i)
end

for i in _PM.ids(pm, :bus)
    constraint_power_balance_ac(pm, i)
end

for i in _PM.ids(pm, :branch)
    # dirty, should be improved in the future TODO
    if typeof(pm) <: _PM.SOCDFPowerModel
        constraint_flow_losses(pm, i)
        constraint_voltage_magnitude_difference(pm, i)
        constraint_branch_current(pm, i)
    else
        constraint_ohms_yt_from(pm, i)
        constraint_ohms_yt_to(pm, i)
    end

    constraint_voltage_angle_difference(pm, i)

    constraint_thermal_limit_from(pm, i)
    constraint_thermal_limit_to(pm, i)
end
for i in _PM.ids(pm, :busdc)
    constraint_power_balance_dc(pm, i)
end
for i in _PM.ids(pm, :branchdc)
    constraint_ohms_dc_branch(pm, i)
end
for i in _PM.ids(pm, :convdc)
    constraint_converter_losses(pm, i)
    constraint_converter_current(pm, i)
    constraint_conv_transformer(pm, i)
    constraint_conv_reactor(pm, i)
    constraint_conv_filter(pm, i)
    if pm.ref[:nw][pm.cnw][:convdc][i]["islcc"] == 1
        constraint_conv_firing_angle(pm, i)
    end
end