ANL-CEEESA/UnitCommitment.jl
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stochastic extension w/ scenarios

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oyurdakul
2023-02-08 23:46:10 -06:00
parent 8fc84412eb
commit c95b01dadf
27 changed files with 566 additions and 386 deletions
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23
src/model/formulations/ArrCon2000/ramp.jl
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@@ -8,6 +8,7 @@ function _add_ramp_eqs!(
formulation_prod_vars::Gar1962.ProdVars,
formulation_ramping::ArrCon2000.Ramping,
formulation_status_vars::Gar1962.StatusVars,
sc::UnitCommitmentScenario
)::Nothing
# TODO: Move upper case constants to model[:instance]
RESERVES_WHEN_START_UP = true
@@ -22,7 +23,7 @@ function _add_ramp_eqs!(
eq_ramp_down = _init(model, :eq_ramp_down)
eq_ramp_up = _init(model, :eq_ramp_up)
is_initially_on = (g.initial_status > 0)
reserve = _total_reserves(model, g)
reserve = _total_reserves(model, g, sc)
# Gar1962.ProdVars
prod_above = model[:prod_above]
@@ -37,10 +38,10 @@ function _add_ramp_eqs!(
if t == 1
if is_initially_on
# min power is _not_ multiplied by is_on because if !is_on, then ramp up is irrelevant
eq_ramp_up[gn, t] = @constraint(
eq_ramp_up[sc.name, gn, t] = @constraint(
model,
g.min_power[t] +
prod_above[gn, t] +
prod_above[sc.name, gn, t] +
(RESERVES_WHEN_RAMP_UP ? reserve[t] : 0.0) <=
g.initial_power + RU
)
@@ -48,16 +49,16 @@ function _add_ramp_eqs!(
else
max_prod_this_period =
g.min_power[t] * is_on[gn, t] +
prod_above[gn, t] +
prod_above[sc.name, gn, t] +
(
RESERVES_WHEN_START_UP || RESERVES_WHEN_RAMP_UP ?
reserve[t] : 0.0
)
min_prod_last_period =
g.min_power[t-1] * is_on[gn, t-1] + prod_above[gn, t-1]
g.min_power[t-1] * is_on[gn, t-1] + prod_above[sc.name, gn, t-1]
# Equation (24) in Kneuven et al. (2020)
eq_ramp_up[gn, t] = @constraint(
eq_ramp_up[sc.name, gn, t] = @constraint(
model,
max_prod_this_period - min_prod_last_period <=
RU * is_on[gn, t-1] + SU * switch_on[gn, t]
@@ -71,24 +72,24 @@ function _add_ramp_eqs!(
# min_power + RD < initial_power < SD
# then the generator should be able to shut down at time t = 1,
# but the constraint below will force the unit to produce power
eq_ramp_down[gn, t] = @constraint(
eq_ramp_down[sc.name, gn, t] = @constraint(
model,
g.initial_power - (g.min_power[t] + prod_above[gn, t]) <= RD
g.initial_power - (g.min_power[t] + prod_above[sc.name, gn, t]) <= RD
)
end
else
max_prod_last_period =
g.min_power[t-1] * is_on[gn, t-1] +
prod_above[gn, t-1] +
prod_above[sc.name, gn, t-1] +
(
RESERVES_WHEN_SHUT_DOWN || RESERVES_WHEN_RAMP_DOWN ?
reserve[t-1] : 0.0
)
min_prod_this_period =
g.min_power[t] * is_on[gn, t] + prod_above[gn, t]
g.min_power[t] * is_on[gn, t] + prod_above[sc.name, gn, t]
# Equation (25) in Kneuven et al. (2020)
eq_ramp_down[gn, t] = @constraint(
eq_ramp_down[sc.name, gn, t] = @constraint(
model,
max_prod_last_period - min_prod_this_period <=
RD * is_on[gn, t] + SD * switch_off[gn, t]