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[add] solve_mn_mc_opf_oltc (#457)
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* added solve_mn_mc_opf_oltc

* change docstring for build_mn_mc_opf_oltc

* updated change log

* test

* test

* test

* end test

* add ieee13_feeder.dss

* oltc tests

* mn_opf_oltc tests

* solve_mn_mc_oltc tests

* solve_mc_opf_oltc tests

* solve_mc_opf_oltc tests

* solve_mc_opf_oltc tests

---------

Co-authored-by: John-Boik <john.boik@itron.com>
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@John-Boik
John-Boik and John-Boik authored Mar 11, 2024
1 parent 00a73ae commit eebf158
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1 change: 1 addition & 0 deletions CHANGELOG.md
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Expand Up @@ -2,6 +2,7 @@

## staged

- Added function `solve_mn_mc_opf_oltc` for multi-networks
- Fixed bug in `DssLine` parser where `c1` was being set to `c0`
- Fixed native pf unit tests, which assume no virtual branches from switches (applied `make_lossless!` before test)
- Added `g_fr`, `g_to`, `b_fr`, `b_to` to switches in `dss2eng` and `eng2math`
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2 changes: 0 additions & 2 deletions src/core/objective.jl
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Expand Up @@ -154,7 +154,6 @@ Fuel cost minimization objective with piecewise linear terms
"""
function objective_mc_min_fuel_cost_pwl(pm::AbstractUnbalancedPowerModel; report::Bool=true)
objective_mc_variable_pg_cost(pm; report=report)

return JuMP.@objective(pm.model, Min,
sum(
sum( var(pm, n, :pg_cost, i) for (i,gen) in nw_ref[:gen])
Expand Down Expand Up @@ -473,7 +472,6 @@ Checks that all generator cost models are of the same type
"""
function check_gen_cost_models(pm::AbstractUnbalancedPowerModel)
model = nothing

for (n, nw_ref) in nws(pm)
for (i,gen) in nw_ref[:gen]
if haskey(gen, "cost")
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101 changes: 101 additions & 0 deletions src/prob/opf_oltc.jl
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Expand Up @@ -4,6 +4,22 @@ function solve_mc_opf_oltc(data::Union{Dict{String,<:Any},String}, model_type::T
end


"""
function solve_mn_mc_opf_oltc(
data::Union{Dict{String,<:Any},String},
model_type::Type,
solver;
kwargs...
)
Solve multinetwork oltc optimal power flow problem
"""
function solve_mn_mc_opf_oltc(data::Union{Dict{String,<:Any},String}, model_type::Type, solver; kwargs...)
return solve_mc_model(data, model_type, solver, build_mn_mc_opf_oltc; multinetwork=true, kwargs...)
end



"constructor for on-load tap-changer OPF"
function build_mc_opf_oltc(pm::AbstractUnbalancedPowerModel)
variable_mc_bus_voltage(pm)
Expand Down Expand Up @@ -137,3 +153,88 @@ function build_mc_opf_oltc(pm::AbstractUBFModels)
# Objective
objective_mc_min_fuel_cost(pm)
end


"""
function build_mn_mc_opf_oltc(
pm::AbstractUnbalancedPowerModel
)
Constructor for otlc Optimal Power Flow
"""
function build_mn_mc_opf_oltc(pm::AbstractUnbalancedPowerModel)
for (n, network) in nws(pm)
variable_mc_bus_voltage(pm; nw=n)
variable_mc_branch_power(pm; nw=n)
variable_mc_switch_power(pm; nw=n)
variable_mc_transformer_power(pm; nw=n)
variable_mc_oltc_transformer_tap(pm; nw=n)
variable_mc_generator_power(pm; nw=n)
variable_mc_load_power(pm; nw=n)
variable_mc_storage_power(pm; nw=n)

constraint_mc_model_voltage(pm; nw=n)

for i in ids(pm, n, :ref_buses)
constraint_mc_theta_ref(pm, i; nw=n)
end

# generators should be constrained before KCL, or Pd/Qd undefined
for id in ids(pm, n,:gen)
constraint_mc_generator_power(pm, id; nw=n)
end

# loads should be constrained before KCL, or Pd/Qd undefined
for id in ids(pm, n, :load)
constraint_mc_load_power(pm, id; nw=n)
end

for i in ids(pm, n, :bus)
constraint_mc_power_balance(pm, i; nw=n)
end

for i in ids(pm, n, :storage)
constraint_storage_complementarity_nl(pm, i; nw=n)
constraint_mc_storage_losses(pm, i; nw=n)
constraint_mc_storage_thermal_limit(pm, i; nw=n)
end

for i in ids(pm, n, :branch)
constraint_mc_ohms_yt_from(pm, i; nw=n)
constraint_mc_ohms_yt_to(pm, i; nw=n)
constraint_mc_voltage_angle_difference(pm, i; nw=n)
constraint_mc_thermal_limit_from(pm, i; nw=n)
constraint_mc_thermal_limit_to(pm, i; nw=n)
constraint_mc_ampacity_from(pm, i; nw=n)
constraint_mc_ampacity_to(pm, i; nw=n)
end

for i in ids(pm, n, :switch)
constraint_mc_switch_state(pm, i; nw=n)
constraint_mc_switch_thermal_limit(pm, i; nw=n)
constraint_mc_switch_ampacity(pm, i; nw=n)
end

for i in ids(pm, n, :transformer)
constraint_mc_transformer_power(pm, i, fix_taps=false; nw=n)
end
end

network_ids = sort(collect(nw_ids(pm)))

n_1 = network_ids[1]

for i in ids(pm, :storage; nw=n_1)
constraint_storage_state(pm, i; nw=n_1)
end

for n_2 in network_ids[2:end]
for i in ids(pm, :storage; nw=n_2)
constraint_storage_state(pm, i, n_1, n_2)
end

n_1 = n_2
end

objective_mc_min_fuel_cost(pm)
end
185 changes: 185 additions & 0 deletions test/data/opendss/ieee13_feeder.dss
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Clear
Set DefaultBaseFrequency=60

!
! This script is based on a script developed by Tennessee Tech Univ students
! Tyler Patton, Jon Wood, and David Woods, April 2009
!

new circuit.IEEE13Nodeckt
~ basekv=115 pu=1.0001 phases=3 bus1=SourceBus
~ Angle=30 ! advance angle 30 deg so result agree with published angle
~ MVAsc3=20000 MVASC1=21000 ! stiffen the source to approximate inf source
~ baseMVA=1


!SUB TRANSFORMER DEFINITION
! Although this data was given, it does not appear to be used in the test case results
! The published test case starts at 1.0 per unit at Bus 650. To make this happen, we will change the impedance
! on the transformer to something tiny by dividing by 1000 using the DSS in-line RPN math
New Transformer.Sub Phases=3 Windings=2 XHL=(8 1000 /)
~ wdg=1 bus=SourceBus conn=delta kv=115 kva=5000 %r=(.5 1000 /)
~ wdg=2 bus=650 conn=wye kv=4.16 kva=5000 %r=(.5 1000 /)

! FEEDER 1-PHASE VOLTAGE REGULATORS
! Define low-impedance 2-wdg transformer

New Transformer.Reg1 phases=1 bank=reg1 XHL=0.01 kVAs=[1666 1666]
~ Buses=[650.1 RG60.1] kVs=[2.4 2.4] %LoadLoss=0.01
~ %rs=[0 0] ! correct default here

New Transformer.Reg2 phases=1 bank=reg1 XHL=0.01 kVAs=[1666 1666]
~ Buses=[650.2 RG60.2] kVs=[2.4 2.4] %LoadLoss=0.01
~ %rs=[0 0] ! correct default here

New Transformer.Reg3 phases=1 bank=reg1 XHL=0.01 kVAs=[1666 1666]
~ Buses=[650.3 RG60.3] kVs=[2.4 2.4] %LoadLoss=0.01
~ %rs=[0 0] ! correct default here


!TRANSFORMER DEFINITION
New Transformer.XFM1 Phases=3 Windings=2 XHL=2
~ wdg=1 bus=633 conn=Wye kv=4.16 kva=500 %r=.55 XHT=1
~ wdg=2 bus=634 conn=Wye kv=0.480 kva=500 %r=.55 XLT=1


!LINE CODES

// these are local matrix line codes
// corrected 9-14-2011
New linecode.mtx601 nphases=3 BaseFreq=60
~ rmatrix = (0.3465 | 0.1560 0.3375 | 0.1580 0.1535 0.3414 )
~ xmatrix = (1.0179 | 0.5017 1.0478 | 0.4236 0.3849 1.0348 )
~ units=mi
New linecode.mtx602 nphases=3 BaseFreq=60
~ rmatrix = (0.7526 | 0.1580 0.7475 | 0.1560 0.1535 0.7436 )
~ xmatrix = (1.1814 | 0.4236 1.1983 | 0.5017 0.3849 1.2112 )
~ units=mi
New linecode.mtx603 nphases=2 BaseFreq=60
~ rmatrix = (1.3238 | 0.2066 1.3294 )
~ xmatrix = (1.3569 | 0.4591 1.3471 )
~ units=mi
New linecode.mtx604 nphases=2 BaseFreq=60
~ rmatrix = (1.3238 | 0.2066 1.3294 )
~ xmatrix = (1.3569 | 0.4591 1.3471 )
~ units=mi
New linecode.mtx605 nphases=1 BaseFreq=60
~ rmatrix = (1.3292 )
~ xmatrix = (1.3475 )
~ units=mi
New Linecode.mtx606 nphases=3 Units=mi
~ Rmatrix=[0.791721 |0.318476 0.781649 |0.28345 0.318476 0.791721 ]
~ Xmatrix=[0.438352 |0.0276838 0.396697 |-0.0184204 0.0276838 0.438352 ]
~ Cmatrix=[383.948 |0 383.948 |0 0 383.948 ]
New linecode.mtx607 nphases=1 BaseFreq=60
~ rmatrix = (1.3425 )
~ xmatrix = (0.5124 )
~ cmatrix = [236]
~ units=mi

!LOADSHAPE DEFINITION
New LoadShape.microgrid1a interval=1 npts=8 useactual=no mult=(0.25, 0.4, 0.8, 1.0, 1.0, 0.8, 0.6, 0.5)
New LoadShape.microgrid1b interval=1 npts=8 useactual=no mult=(1.0, 1.0, 0.8, 0.5, 0.4, 0.4, 0.4, 0.8)
New LoadShape.microgrid1c interval=1 npts=8 useactual=no mult=(0.25, 0.4, 0.8, 1.0, 1.4, 2.0, 1.0, 0.8)
New LoadShape.microgrid1d interval=1 npts=8 useactual=no mult=(0.4, 0.4, 0.4, 1.0, 1.0, 0.8, 0.8, 0.6)
New LoadShape.pvdaily interval=1 npts=8 useactual=no mult=(0, 0, 0.4, 1.0, 0.8, 0.3, 0, 0)

!LOAD DEFINITIONS
!New Load.671 Bus1=671.1.2.3 Phases=3 Conn=Delta Model=1 kV=4.16 kW=1155 kvar=660 vminpu=0.6 vmaxpu=1.4
New Load.671_1 Bus1=671.1 Phases=1 Conn=Wye Model=1 kV=4.16 kW=385 kvar=220 vminpu=0.6 vmaxpu=1.4
New Load.671_2 Bus1=671.2 Phases=1 Conn=Wye Model=1 kV=4.16 kW=385 kvar=220 vminpu=0.6 vmaxpu=1.4
New Load.671_3 Bus1=671.3 Phases=1 Conn=Wye Model=1 kV=4.16 kW=385 kvar=220 vminpu=0.6 vmaxpu=1.4
New Load.634a Bus1=634.1 Phases=1 Conn=Wye Model=1 kV=0.277 kW=160 kvar=110 vminpu=0.6 vmaxpu=1.4
New Load.634b Bus1=634.2 Phases=1 Conn=Wye Model=1 kV=0.277 kW=120 kvar=90 vminpu=0.6 vmaxpu=1.4
New Load.634c Bus1=634.3 Phases=1 Conn=Wye Model=1 kV=0.277 kW=120 kvar=90 vminpu=0.6 vmaxpu=1.4
New Load.645 Bus1=645.2 Phases=1 Conn=Wye Model=1 kV=2.4 kW=170 kvar=125 vminpu=0.6 vmaxpu=1.4
!New Load.646 Bus1=646.2.3 Phases=1 Conn=Delta Model=2 kV=4.16 kW=230 kvar=132 vminpu=0.6 vmaxpu=1.4
New Load.646_2 Bus1=646.2 Phases=1 Conn=Wye Model=2 kV=4.16 kW=115 kvar=66 vminpu=0.6 vmaxpu=1.4
New Load.646_3 Bus1=646.3 Phases=1 Conn=Wye Model=2 kV=4.16 kW=115 kvar=66 vminpu=0.6 vmaxpu=1.4
!New Load.692 Bus1=692.3.1 Phases=1 Conn=Delta Model=5 kV=4.16 kW=170 kvar=151 vminpu=0.6 vmaxpu=1.4
New Load.692_3 Bus1=692.3 Phases=1 Conn=Wye Model=2 kV=4.16 kW=85 kvar=75.5 vminpu=0.6 vmaxpu=1.4 daily=microgrid1d
New Load.692_1 Bus1=692.1 Phases=1 Conn=Wye Model=2 kV=4.16 kW=85 kvar=75.5 vminpu=0.6 vmaxpu=1.4 daily=microgrid1d
New Load.675a Bus1=675.1 Phases=1 Conn=Wye Model=1 kV=2.4 kW=485 kvar=190 vminpu=0.6 vmaxpu=1.4 daily=microgrid1d
New Load.675b Bus1=675.2 Phases=1 Conn=Wye Model=1 kV=2.4 kW=68 kvar=60 vminpu=0.6 vmaxpu=1.4 daily=microgrid1d
New Load.675c Bus1=675.3 Phases=1 Conn=Wye Model=1 kV=2.4 kW=290 kvar=212 vminpu=0.6 vmaxpu=1.4 daily=microgrid1d
New Load.611 Bus1=611.3 Phases=1 Conn=Wye Model=5 kV=2.4 kW=170 kvar=80 vminpu=0.6 vmaxpu=1.4
New Load.652 Bus1=652.1 Phases=1 Conn=Wye Model=2 kV=2.4 kW=128 kvar=86 vminpu=0.6 vmaxpu=1.4
New Load.670a Bus1=670.1 Phases=1 Conn=Wye Model=1 kV=2.4 kW=17 kvar=10 vminpu=0.6 vmaxpu=1.4
New Load.670b Bus1=670.2 Phases=1 Conn=Wye Model=1 kV=2.4 kW=66 kvar=38 vminpu=0.6 vmaxpu=1.4
New Load.670c Bus1=670.3 Phases=1 Conn=Wye Model=1 kV=2.4 kW=117 kvar=68 vminpu=0.6 vmaxpu=1.4

!CAPACITOR DEFINITIONS
New Capacitor.Cap1 Bus1=675 phases=3 kVAR=600 kV=4.16
New Capacitor.Cap2 Bus1=611.3 phases=1 kVAR=100 kV=2.4

!Bus 670 is the concentrated point load of the distributed load on line 632 to 671 located at 1/3 the distance from node 632

!LINE DEFINITIONS
New Line.650632 Phases=3 Bus1=RG60.1.2.3 Bus2=632.1.2.3 LineCode=mtx601 Length=2000 units=ft normamps=800 emergamps=800
New Line.632670 Phases=3 Bus1=632.1.2.3 Bus2=670.1.2.3 LineCode=mtx601 Length=667 units=ft normamps=800 emergamps=800
New Line.670671 Phases=3 Bus1=670.1.2.3 Bus2=671.1.2.3 LineCode=mtx601 Length=1333 units=ft normamps=800 emergamps=800
New Line.671680 Phases=3 Bus1=671.1.2.3 Bus2=680.1.2.3 LineCode=mtx601 Length=1000 units=ft normamps=800 emergamps=800
New Line.632633 Phases=3 Bus1=632.1.2.3 Bus2=633.1.2.3 LineCode=mtx602 Length=500 units=ft
New Line.632645 Phases=2 Bus1=632.3.2 Bus2=645.3.2 LineCode=mtx603 Length=500 units=ft
New Line.645646 Phases=2 Bus1=645.3.2 Bus2=646.3.2 LineCode=mtx603 Length=300 units=ft
New Line.692675 Phases=3 Bus1=692.1.2.3 Bus2=675.1.2.3 LineCode=mtx606 Length=500 units=ft normamps=800 emergamps=800
New Line.671684 Phases=2 Bus1=671.1.3 Bus2=684.1.3 LineCode=mtx604 Length=300 units=ft
New Line.684611 Phases=1 Bus1=684.3 Bus2=611.3 LineCode=mtx605 Length=300 units=ft
New Line.684652 Phases=1 Bus1=684.1 Bus2=652.1 LineCode=mtx607 Length=800 units=ft

!SWITCH DEFINITIONS
New Line.671692 Phases=3 Bus1=671 Bus2=692 Switch=y r1=0 r0=0 x1=0.000 x0=0.000 c1=0.000 c0=0.000 normamps=800 emergamps=1000

!MICROGRID DEFINITIONS
New Line.671700 Phases=3 Bus1=670 Bus2=700 Switch=y r1=0 r0=0 x1=0.000 x0=0.000 c1=0.000 c0=0.000 enabled=y
New Line.700701 Phases=3 Bus1=700.1.2.3 Bus2=701.1.2.3 LineCode=mtx601 Length=800 units=ft
New Load.700 Phases=3 Bus1=700.1.2.3 Conn=Wye Model=1 kv=4.16 kw=10 kvar=3 daily=microgrid1b
New Load.701 Phases=3 Bus1=701.1.2.3 Conn=Wye Model=1 kv=4.16 kw=15 kvar=5 daily=microgrid1b

New PVSystem.PV_mg1b Phases=3 Bus1=700.1.2.3 kv=4.16 conn=wye irradiance=1 Pmpp=25 kva=35 pf=0.74 daily=pvdaily
New Storage.Battery_mg1b Phases=3 Bus1=700 kwhstored=5 kwhrated=50 kwrated=10 %idlingkw=0 %idlingkvar=0 %effcharge=100 %effdischarge=100 %charge=100 %discharge=100 %r=0 %x=0 enabled=y

New Line.701702 Phases=3 Bus1=701 Bus2=702 Switch=y r1=0 r0=0 x1=0.000 x0=0.000 c1=0.000 c0=0.000 enabled=y
New Line.702703 Phases=3 Bus1=702.1.2.3 Bus2=703.1.2.3 LineCode=mtx601 Length=900 units=ft
New Load.702 Phases=3 Bus1=702.1.2.3 conn=wye model=1 kv=4.16 kw=50 kvar=20 daily=microgrid1a
New Load.703 Phases=3 Bus1=703.1.2.3 conn=wye model=1 kv=4.16 kw=135 kvar=100 daily=microgrid1a

New PVSystem.PV_mg1a Phases=3 Bus1=703.1.2.3 kv=4.16 conn=wye irradiance=1 Pmpp=25 kva=210 pf=0.74 daily=pvdaily
New Storage.Battery_mg1a Phases=3 Bus1=700 kwhstored=25 kwhrated=200 kwrated=50 %idlingkw=0 %idlingkvar=0 %effcharge=100 %effdischarge=100 %charge=100 %discharge=100 %r=0 %x=0 enabled=y

New Line.703800 Phases=3 Bus1=703 Bus2=800aux Switch=y r1=0 r0=0 x1=0 x0=0 c1=0 c0=0 enabled=y normamps=50 emergamps=50
New Line.800800aux Phases=3 Bus1=800aux Bus2=800 LineCode=mtx601 Length=1000 units=ft
New Line.800801 Phases=3 Bus1=800 Bus2=801 Switch=y r1=0 r0=0 x1=0 x0=0 c1=0 c0=0 enabled=y normamps=50 emergamps=50

New Load.801 Phases=3 Bus1=801 conn=wye model=1 kv=4.16 kw=200.0 kvar=120.0 daily=microgrid1c

New Storage.Battery_mg1c Phases=3 Bus1=801 kwhstored=500 kwhrated=1000 kwrated=250 %idlingkw=0 %idlingkvar=0 %effcharge=100 %effdischarge=100 %charge=100 %discharge=100 %r=0 %x=0 enabled=y

New Line.801675 Phases=3 Bus1=801 Bus2=675aux Switch=y r1=0 r0=0 x1=0 x0=0 c1=0.0 c0=0.0 normamps=50 emergamps=50 enabled=n ! tie switch
New Line.675675aux Phases=3 Bus1=675 Bus2=675aux LineCode=mtx601 Length=15 units=mi normamps=800 emergamps=800

New Generator.675 Phases=3 Bus1=675 kv=2.4 kva=500 kw=500 kvar=350

New Relay.801675 monitoredobj=line.801675
New Recloser.671700 monitoredobj=line.671700 phasetrip=140
New Relay.632645 MonitoredObj=line.632645

!New CapControl.cap1 Capacitor=Cap1 element=Line.692675 ptphase=3 terminal=2 type=voltage ptratio=1 ctratio=1 ONsetting=2500 OFFsetting=2540 VoltOverride=N
!New CapControl.cap2 Capacitor=Cap2 element=Line.684611 terminal=3 ptphase=3 type=kvar ptratio=1 ctratio=1 ONsetting=0 OFFsetting=0 VoltOverride=Y Vmin=0 Vmax=10000

Set Voltagebases=[115, 4.16, .48]
calcv

! POINT REGULATOR CONTROLS TO REGULATOR TRANSFORMER AND SET PARAMETERS
new regcontrol.Reg1 transformer=Reg1 winding=2 vreg=122 band=2 ptratio=20 ctprim=700 R=3 X=9
new regcontrol.Reg2 transformer=Reg2 winding=2 vreg=122 band=2 ptratio=20 ctprim=700 R=3 X=9
new regcontrol.Reg3 transformer=Reg3 winding=2 vreg=122 band=2 ptratio=20 ctprim=700 R=3 X=9

Transformer.Reg1.Taps=[1.0 1.0625]
Transformer.Reg2.Taps=[1.0 1.0500]
Transformer.Reg3.Taps=[1.0 1.06875]

Set Controlmode=OFF
Set tolerance=0.001

Solve
13 changes: 13 additions & 0 deletions test/multinetwork.jl
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Expand Up @@ -26,4 +26,17 @@
@test all(all(isapprox.(bus["vm_lb"][filter(x->x∉bus["grounded"],bus["terminals"])]/vbases[id], 0.9; atol=1e-6)) for (id,bus) in filter(x->x.first!="sourcebus",nw["bus"]))
end
end

@testset "solve_mc_opf_oltc" begin
result_mn = PowerModelsDistribution.solve_mn_mc_opf_oltc(IEEE13_Feeder_engr, ACPUPowerModel, ipopt_solver)
@test result_mn["termination_status"] == LOCALLY_SOLVED

@test all(isapprox.(result_mn["solution"]["nw"]["1"]["voltage_source"]["source"]["pg"], [738.58786, 788.38272, 787.79729]; atol=1e-5))
@test all(isapprox.(result_mn["solution"]["nw"]["1"]["voltage_source"]["source"]["qg"], [237.68517, 209.61208, 266.77223]; atol=1e-5))
@test all(isapprox.(result_mn["solution"]["nw"]["8"]["voltage_source"]["source"]["pg"], [847.77707, 889.87745, 918.34146]; atol=1e-5))
@test all(isapprox.(result_mn["solution"]["nw"]["8"]["voltage_source"]["source"]["qg"], [284.46267, 227.28860, 292.33564]; atol=1e-5))

@test all(isapprox.(result_mn["solution"]["nw"]["1"]["transformer"]["reg1"]["tap"][2], [1.02358, 1.01724, 1.02169]; atol=1e-5))
@test all(isapprox.(result_mn["solution"]["nw"]["8"]["transformer"]["reg1"]["tap"][2], [1.02719, 1.01984, 1.02414]; atol=1e-5))
end
end
4 changes: 4 additions & 0 deletions test/test_cases.jl
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Expand Up @@ -64,3 +64,7 @@ test_trans_dy = parse_file("../test/data/en_validation_case_data/test_trans_dy.d

# distribution transformer equivalent cases
dist_transformer = parse_file("../test/data/opendss/dist_transformer.dss")

# IEEE13 Feeder
IEEE13_Feeder_engr = parse_file("../test/data/opendss/ieee13_feeder.dss", multinetwork=true,
time_series="daily", transformations=[remove_line_limits!, remove_transformer_limits!])

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