Actual source code: PFReadData.c
1: #include "petscmat.h"
2: #include "power.h"
3: #include <string.h>
4: #include <ctype.h>
6: PetscErrorCode PFReadMatPowerData(PFDATA *pf, char *filename)
7: {
8: FILE *fp;
9: VERTEX_Power Bus;
10: LOAD Load;
11: GEN Gen;
12: EDGE_Power Branch;
13: PetscInt line_counter = 0;
14: PetscInt bus_start_line = -1, bus_end_line = -1; /* xx_end_line points to the next line after the record ends */
15: PetscInt gen_start_line = -1, gen_end_line = -1;
16: PetscInt br_start_line = -1, br_end_line = -1;
17: char line[MAXLINE];
18: PetscInt loadi = 0, geni = 0, bri = 0, busi = 0, i, j;
19: int extbusnum, bustype_i;
20: double Pd, Qd;
21: PetscInt maxbusnum = -1, intbusnum, *busext2intmap, genj, loadj;
22: GEN newgen;
23: LOAD newload;
25: PetscFunctionBegin;
26: fp = fopen(filename, "r");
27: /* Check for valid file */
28: PetscCheck(fp, PETSC_COMM_SELF, PETSC_ERR_FILE_OPEN, "Can't open Matpower data file %s", filename);
29: pf->nload = 0;
30: while (fgets(line, MAXLINE, fp)) {
31: if (strstr(line, "mpc.bus = [")) bus_start_line = line_counter + 1; /* Bus data starts from next line */
32: if (strstr(line, "mpc.gen") && gen_start_line == -1) gen_start_line = line_counter + 1; /* Generator data starts from next line */
33: if (strstr(line, "mpc.branch")) br_start_line = line_counter + 1; /* Branch data starts from next line */
34: if (strstr(line, "];")) {
35: if (bus_start_line != -1 && bus_end_line == -1) bus_end_line = line_counter;
36: if (gen_start_line != -1 && gen_end_line == -1) gen_end_line = line_counter;
37: if (br_start_line != -1 && br_end_line == -1) br_end_line = line_counter;
38: }
40: /* Count the number of pq loads */
41: if (bus_start_line != -1 && line_counter >= bus_start_line && bus_end_line == -1) {
42: sscanf(line, "%d %d %lf %lf", &extbusnum, &bustype_i, &Pd, &Qd);
43: if (!((Pd == 0.0) && (Qd == 0.0))) pf->nload++;
44: if (extbusnum > maxbusnum) maxbusnum = extbusnum;
45: }
46: line_counter++;
47: }
48: fclose(fp);
50: pf->nbus = bus_end_line - bus_start_line;
51: pf->ngen = gen_end_line - gen_start_line;
52: pf->nbranch = br_end_line - br_start_line;
54: PetscCall(PetscCalloc1(pf->nbus, &pf->bus));
55: PetscCall(PetscCalloc1(pf->ngen, &pf->gen));
56: PetscCall(PetscCalloc1(pf->nload, &pf->load));
57: PetscCall(PetscCalloc1(pf->nbranch, &pf->branch));
58: Bus = pf->bus;
59: Gen = pf->gen;
60: Load = pf->load;
61: Branch = pf->branch;
63: /* Setting pf->sbase to 100 */
64: pf->sbase = 100.0;
66: PetscCall(PetscMalloc1(maxbusnum + 1, &busext2intmap));
67: for (i = 0; i < maxbusnum + 1; i++) busext2intmap[i] = -1;
69: fp = fopen(filename, "r");
70: /* Reading data */
71: for (i = 0; i < line_counter; i++) {
72: PetscCheck(fgets(line, MAXLINE, fp), PETSC_COMM_SELF, PETSC_ERR_SUP, "File is incorrectly formatted");
74: if ((i >= bus_start_line) && (i < bus_end_line)) {
75: double gl, bl, vm, va, basekV;
76: int bus_i, ide, area;
77: /* Bus data */
78: sscanf(line, "%d %d %lf %lf %lf %lf %d %lf %lf %lf", &bus_i, &ide, &Pd, &Qd, &gl, &bl, &area, &vm, &va, &basekV);
79: Bus[busi].bus_i = bus_i;
80: Bus[busi].ide = ide;
81: Bus[busi].area = area;
82: Bus[busi].gl = gl;
83: Bus[busi].bl = bl;
84: Bus[busi].vm = vm;
85: Bus[busi].va = va;
86: Bus[busi].basekV = basekV;
87: Bus[busi].internal_i = busi;
88: busext2intmap[Bus[busi].bus_i] = busi;
90: if (!((Pd == 0.0) && (Qd == 0.0))) {
91: Load[loadi].bus_i = Bus[busi].bus_i;
92: Load[loadi].status = 1;
93: Load[loadi].pl = Pd;
94: Load[loadi].ql = Qd;
95: Load[loadi].area = Bus[busi].area;
96: Load[loadi].internal_i = busi;
97: Bus[busi].lidx[Bus[busi].nload++] = loadi;
98: PetscCheck(Bus[busi].nload <= NLOAD_AT_BUS_MAX, PETSC_COMM_SELF, PETSC_ERR_SUP, "Exceeded maximum number of loads allowed at bus");
99: loadi++;
100: }
101: busi++;
102: }
104: /* Read generator data */
105: if (i >= gen_start_line && i < gen_end_line) {
106: double pg, qg, qt, qb, vs, mbase, pt, pb;
107: int bus_i, status;
108: sscanf(line, "%d %lf %lf %lf %lf %lf %lf %d %lf %lf", &bus_i, &pg, &qg, &qt, &qb, &vs, &mbase, &status, &pt, &pb);
109: Gen[geni].bus_i = bus_i;
110: Gen[geni].status = status;
111: Gen[geni].pg = pg;
112: Gen[geni].qg = qg;
113: Gen[geni].qt = qt;
114: Gen[geni].qb = qb;
115: Gen[geni].vs = vs;
116: Gen[geni].mbase = mbase;
117: Gen[geni].pt = pt;
118: Gen[geni].pb = pb;
120: intbusnum = busext2intmap[Gen[geni].bus_i];
121: Gen[geni].internal_i = intbusnum;
122: Bus[intbusnum].gidx[Bus[intbusnum].ngen++] = geni;
124: Bus[intbusnum].vm = Gen[geni].vs;
126: PetscCheck(Bus[intbusnum].ngen <= NGEN_AT_BUS_MAX, PETSC_COMM_SELF, PETSC_ERR_SUP, "Exceeded maximum number of generators allowed at bus");
127: geni++;
128: }
130: if (i >= br_start_line && i < br_end_line) {
131: PetscScalar R, X, Bc, B, G, Zm, tap, shift, tap2, tapr, tapi;
132: double r, x, b, rateA, rateB, rateC, tapratio, phaseshift;
133: int fbus, tbus, status;
134: sscanf(line, "%d %d %lf %lf %lf %lf %lf %lf %lf %lf %d", &fbus, &tbus, &r, &x, &b, &rateA, &rateB, &rateC, &tapratio, &phaseshift, &status);
135: Branch[bri].fbus = fbus;
136: Branch[bri].tbus = tbus;
137: Branch[bri].status = status;
138: Branch[bri].r = r;
139: Branch[bri].x = x;
140: Branch[bri].b = b;
141: Branch[bri].rateA = rateA;
142: Branch[bri].rateB = rateB;
143: Branch[bri].rateC = rateC;
144: Branch[bri].tapratio = tapratio;
145: Branch[bri].phaseshift = phaseshift;
147: if (Branch[bri].tapratio == 0.0) Branch[bri].tapratio = 1.0;
148: Branch[bri].phaseshift *= PETSC_PI / 180.0;
150: intbusnum = busext2intmap[Branch[bri].fbus];
151: Branch[bri].internal_i = intbusnum;
153: intbusnum = busext2intmap[Branch[bri].tbus];
154: Branch[bri].internal_j = intbusnum;
156: /* Compute self and transfer admittances */
157: R = Branch[bri].r;
158: X = Branch[bri].x;
159: Bc = Branch[bri].b;
161: Zm = R * R + X * X;
162: G = R / Zm;
163: B = -X / Zm;
165: tap = Branch[bri].tapratio;
166: shift = Branch[bri].phaseshift;
167: tap2 = tap * tap;
168: tapr = tap * PetscCosScalar(shift);
169: tapi = tap * PetscSinScalar(shift);
171: Branch[bri].yff[0] = G / tap2;
172: Branch[bri].yff[1] = (B + Bc / 2.0) / tap2;
174: Branch[bri].yft[0] = -(G * tapr - B * tapi) / tap2;
175: Branch[bri].yft[1] = -(B * tapr + G * tapi) / tap2;
177: Branch[bri].ytf[0] = -(G * tapr + B * tapi) / tap2;
178: Branch[bri].ytf[1] = -(B * tapr - G * tapi) / tap2;
180: Branch[bri].ytt[0] = G;
181: Branch[bri].ytt[1] = B + Bc / 2.0;
183: bri++;
184: }
185: }
186: fclose(fp);
188: /* Reorder the generator data structure according to bus numbers */
189: genj = 0;
190: loadj = 0;
191: PetscCall(PetscMalloc1(pf->ngen, &newgen));
192: PetscCall(PetscMalloc1(pf->nload, &newload));
193: for (i = 0; i < pf->nbus; i++) {
194: for (j = 0; j < pf->bus[i].ngen; j++) PetscCall(PetscMemcpy(&newgen[genj++], &pf->gen[pf->bus[i].gidx[j]], sizeof(struct _p_GEN)));
195: for (j = 0; j < pf->bus[i].nload; j++) PetscCall(PetscMemcpy(&newload[loadj++], &pf->load[pf->bus[i].lidx[j]], sizeof(struct _p_LOAD)));
196: }
197: PetscCall(PetscFree(pf->gen));
198: PetscCall(PetscFree(pf->load));
199: pf->gen = newgen;
200: pf->load = newload;
202: PetscCall(PetscFree(busext2intmap));
203: PetscFunctionReturn(PETSC_SUCCESS);
204: }