void CONSTR_FIX_analyze_step(Constr* c, Branch* br, int t) {
// Local variables
Bus* buses[2];
Bus* bus;
Gen* gen;
Vargen* vargen;
Bat* bat;
Load* load;
Shunt* shunt;
int* A_nnz;
int* A_row;
char* bus_counted;
Vec* b;
Mat* A;
int i;
REAL Pc;
REAL Pd;
int T;
// Number of periods
T = BRANCH_get_num_periods(br);
// Cosntr data
b = CONSTR_get_b(c);
A = CONSTR_get_A(c);
A_nnz = CONSTR_get_A_nnz_ptr(c);
A_row = CONSTR_get_A_row_ptr(c);
bus_counted = CONSTR_get_bus_counted(c);
// Check pointers
if (!A_nnz || !A_row || !bus_counted)
return;
// Check outage
if (BRANCH_is_on_outage(br))
return;
// Bus data
buses[0] = BRANCH_get_bus_k(br);
buses[1] = BRANCH_get_bus_m(br);
// Tap ratio
if (BRANCH_has_flags(br,FLAG_FIXED,BRANCH_VAR_RATIO) &&
BRANCH_has_flags(br,FLAG_VARS,BRANCH_VAR_RATIO)) {
VEC_set(b,*A_row,BRANCH_get_ratio(br,t));
MAT_set_i(A,*A_nnz,*A_row);
MAT_set_j(A,*A_nnz,BRANCH_get_index_ratio(br,t));
MAT_set_d(A,*A_nnz,1.);
(*A_nnz)++;
(*A_row)++;
}
// Phase shift
if (BRANCH_has_flags(br,FLAG_FIXED,BRANCH_VAR_PHASE) &&
BRANCH_has_flags(br,FLAG_VARS,BRANCH_VAR_PHASE)) {
VEC_set(b,*A_row,BRANCH_get_phase(br,t));
MAT_set_i(A,*A_nnz,*A_row);
MAT_set_j(A,*A_nnz,BRANCH_get_index_phase(br,t));
MAT_set_d(A,*A_nnz,1.);
(*A_nnz)++;
(*A_row)++;
}
// Buses
for (i = 0; i < 2; i++) {
bus = buses[i];
if (!bus_counted[BUS_get_index(bus)*T+t]) {
// Voltage magnitude (V_MAG)
if (BUS_has_flags(bus,FLAG_FIXED,BUS_VAR_VMAG) &&
BUS_has_flags(bus,FLAG_VARS,BUS_VAR_VMAG)) {
if (BUS_is_regulated_by_gen(bus))
VEC_set(b,*A_row,BUS_get_v_set(bus,t));
else
VEC_set(b,*A_row,BUS_get_v_mag(bus,t));
MAT_set_i(A,*A_nnz,*A_row);
MAT_set_j(A,*A_nnz,BUS_get_index_v_mag(bus,t));
MAT_set_d(A,*A_nnz,1.);
(*A_nnz)++;
// Extra nz for regulating generator (for PV-PQ switching?)
if (BUS_is_regulated_by_gen(bus) &&
GEN_has_flags(BUS_get_reg_gen(bus),FLAG_VARS,GEN_VAR_Q)) {
MAT_set_i(A,*A_nnz,*A_row);
MAT_set_j(A,*A_nnz,GEN_get_index_Q(BUS_get_reg_gen(bus),t));
MAT_set_d(A,*A_nnz,0.); // placeholder
(*A_nnz)++;
}
(*A_row)++;
}
// Voltage angle (V_ANG)
if (BUS_has_flags(bus,FLAG_FIXED,BUS_VAR_VANG) &&
BUS_has_flags(bus,FLAG_VARS,BUS_VAR_VANG)) {
VEC_set(b,*A_row,BUS_get_v_ang(bus,t));
MAT_set_i(A,*A_nnz,*A_row);
MAT_set_j(A,*A_nnz,BUS_get_index_v_ang(bus,t));
MAT_set_d(A,*A_nnz,1.);
(*A_nnz)++;
(*A_row)++;
}
// Generators
for (gen = BUS_get_gen(bus); gen != NULL; gen = GEN_get_next(gen)) {
// Active power (P)
if (GEN_has_flags(gen,FLAG_FIXED,GEN_VAR_P) &&
GEN_has_flags(gen,FLAG_VARS,GEN_VAR_P)) {
VEC_set(b,*A_row,GEN_get_P(gen,t));
MAT_set_i(A,*A_nnz,*A_row);
MAT_set_j(A,*A_nnz,GEN_get_index_P(gen,t));
MAT_set_d(A,*A_nnz,1.);
(*A_nnz)++;
(*A_row)++;
}
// Reactive power (Q)
if (GEN_has_flags(gen,FLAG_FIXED,GEN_VAR_Q) &&
GEN_has_flags(gen,FLAG_VARS,GEN_VAR_Q)) {
VEC_set(b,*A_row,GEN_get_Q(gen,t));
MAT_set_i(A,*A_nnz,*A_row);
MAT_set_j(A,*A_nnz,GEN_get_index_Q(gen,t));
MAT_set_d(A,*A_nnz,1.);
(*A_nnz)++;
(*A_row)++;
}
}
// Variable generators
for (vargen = BUS_get_vargen(bus); vargen != NULL; vargen = VARGEN_get_next(vargen)) {
// Active power (P)
if (VARGEN_has_flags(vargen,FLAG_FIXED,VARGEN_VAR_P) &&
VARGEN_has_flags(vargen,FLAG_VARS,VARGEN_VAR_P)) {
VEC_set(b,*A_row,VARGEN_get_P(vargen,t));
MAT_set_i(A,*A_nnz,*A_row);
MAT_set_j(A,*A_nnz,VARGEN_get_index_P(vargen,t));
MAT_set_d(A,*A_nnz,1.);
(*A_nnz)++;
(*A_row)++;
}
// Reactive power (Q)
if (VARGEN_has_flags(vargen,FLAG_FIXED,VARGEN_VAR_Q) &&
VARGEN_has_flags(vargen,FLAG_VARS,VARGEN_VAR_Q)) {
VEC_set(b,*A_row,VARGEN_get_Q(vargen,t));
MAT_set_i(A,*A_nnz,*A_row);
MAT_set_j(A,*A_nnz,VARGEN_get_index_Q(vargen,t));
MAT_set_d(A,*A_nnz,1.);
(*A_nnz)++;
(*A_row)++;
}
}
// Shunts
for (shunt = BUS_get_shunt(bus); shunt != NULL; shunt = SHUNT_get_next(shunt)) {
// Susceptance (b)
if (SHUNT_has_flags(shunt,FLAG_FIXED,SHUNT_VAR_SUSC) &&
SHUNT_has_flags(shunt,FLAG_VARS,SHUNT_VAR_SUSC)) {
VEC_set(b,*A_row,SHUNT_get_b(shunt,t));
MAT_set_i(A,*A_nnz,*A_row);
MAT_set_j(A,*A_nnz,SHUNT_get_index_b(shunt,t));
MAT_set_d(A,*A_nnz,1.);
(*A_nnz)++;
(*A_row)++;
}
}
// Batteries
for (bat = BUS_get_bat(bus); bat != NULL; bat = BAT_get_next(bat)) {
// Charging/discharging power (P)
if (BAT_has_flags(bat,FLAG_FIXED,BAT_VAR_P) &&
BAT_has_flags(bat,FLAG_VARS,BAT_VAR_P)) {
if (BAT_get_P(bat,t) >= 0) {
Pc = BAT_get_P(bat,t);
Pd = 0.;
}
else {
Pc = 0.;
Pd = -BAT_get_P(bat,t);
}
// Pc
VEC_set(b,*A_row,Pc);
MAT_set_i(A,*A_nnz,*A_row);
MAT_set_j(A,*A_nnz,BAT_get_index_Pc(bat,t));
MAT_set_d(A,*A_nnz,1.);
(*A_nnz)++;
(*A_row)++;
// Pd
VEC_set(b,*A_row,Pd);
MAT_set_i(A,*A_nnz,*A_row);
MAT_set_j(A,*A_nnz,BAT_get_index_Pd(bat,t));
MAT_set_d(A,*A_nnz,1.);
(*A_nnz)++;
(*A_row)++;
}
// Energy level (E)
if (BAT_has_flags(bat,FLAG_FIXED,BAT_VAR_E) &&
BAT_has_flags(bat,FLAG_VARS,BAT_VAR_E)) {
VEC_set(b,*A_row,BAT_get_E(bat,t));
MAT_set_i(A,*A_nnz,*A_row);
MAT_set_j(A,*A_nnz,BAT_get_index_E(bat,t));
MAT_set_d(A,*A_nnz,1.);
(*A_nnz)++;
(*A_row)++;
}
}
// Loads
for (load = BUS_get_load(bus); load != NULL; load = LOAD_get_next(load)) {
// Active power (P)
if (LOAD_has_flags(load,FLAG_FIXED,LOAD_VAR_P) &&
LOAD_has_flags(load,FLAG_VARS,LOAD_VAR_P)) {
VEC_set(b,*A_row,LOAD_get_P(load,t));
MAT_set_i(A,*A_nnz,*A_row);
MAT_set_j(A,*A_nnz,LOAD_get_index_P(load,t));
MAT_set_d(A,*A_nnz,1.);
(*A_nnz)++;
(*A_row)++;
}
}
}
// Update counted flag
bus_counted[BUS_get_index(bus)*T+t] = TRUE;
}
}
void CONSTR_DC_FLOW_LIM_analyze_branch(Constr* c, Branch* br) {
// Local variables
Bus* bus[2];
Mat* G;
Vec* l;
Vec* u;
int* Gcounter;
REAL b;
int index;
double rating;
// Constr data
G = CONSTR_get_G(c);
l = CONSTR_get_l(c);
u = CONSTR_get_u(c);
Gcounter = CONSTR_get_Gcounter_ptr(c);
if (!Gcounter)
return;
bus[0] = BRANCH_get_bus_from(br);
bus[1] = BRANCH_get_bus_to(br);
b = BRANCH_get_b(br);
index = BRANCH_get_index(br);
if (BRANCH_get_ratingA(br) > 0)
rating = BRANCH_get_ratingA(br);
else
rating = BRANCH_INF_FLOW;
VEC_set(l,index,-rating); // p.u.
VEC_set(u,index,rating); // p.u.
if (BUS_has_flags(bus[0],FLAG_VARS,BUS_VAR_VANG)) { // wk var
// G
MAT_set_i(G,*Gcounter,index);
MAT_set_j(G,*Gcounter,BUS_get_index_v_ang(bus[0])); // wk
MAT_set_d(G,*Gcounter,-b);
(*Gcounter)++;
}
else {
// b
VEC_add_to_entry(l,index,b*BUS_get_v_ang(bus[0]));
VEC_add_to_entry(u,index,b*BUS_get_v_ang(bus[0]));
}
if (BUS_has_flags(bus[1],FLAG_VARS,BUS_VAR_VANG)) { // wm var
// G
MAT_set_i(G,*Gcounter,index);
MAT_set_j(G,*Gcounter,BUS_get_index_v_ang(bus[1])); // wk
MAT_set_d(G,*Gcounter,b);
(*Gcounter)++;
}
else {
// b
VEC_add_to_entry(l,index,-b*BUS_get_v_ang(bus[1]));
VEC_add_to_entry(u,index,-b*BUS_get_v_ang(bus[1]));
}
if (BRANCH_has_flags(br,FLAG_VARS,BRANCH_VAR_PHASE)) { // phi var
// G
MAT_set_i(G,*Gcounter,index);
MAT_set_j(G,*Gcounter,BRANCH_get_index_phase(br)); // phi
MAT_set_d(G,*Gcounter,b);
(*Gcounter)++;
}
else {
// b
VEC_add_to_entry(l,index,-b*BRANCH_get_phase(br));
VEC_add_to_entry(u,index,-b*BRANCH_get_phase(br));
}
}
