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Method te create pgm-ds grid from pgm dict. Test. Example in notebook. Signed-off-by: Marnix van Lieshout <[email protected]>
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‎docs/examples/pgm/basic_pgm_examples.ipynb‎

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},
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{
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"cell_type": "code",
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"execution_count": null,
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"execution_count": 2,
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"metadata": {},
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"outputs": [],
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"outputs": [
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{
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"name": "stdout",
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"output_type": "stream",
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"text": [
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"Created Grid:\n",
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" id | from_node | to_node | from_status | to_status | feeder_branch_id | feeder_node_id | is_feeder \n",
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" 18 | 16 | 5 | 1 | 1 | 0 | 0 | False \n",
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" 19 | 5 | 3 | 1 | 1 | 0 | 0 | False \n",
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" 20 | 5 | 4 | 1 | 1 | 0 | 0 | False \n",
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" 21 | 4 | 2 | 1 | 1 | 0 | 0 | False \n",
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" 22 | 16 | 1 | 1 | 1 | 0 | 0 | False \n",
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"Power Flow Results:\n"
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]
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},
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{
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"data": {
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"text/plain": [
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"array([( 1, 1, 1.00022909, 10502.40547296, 1.99595527e-04, 318145.99999988, 30629. ),\n",
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" ( 2, 1, 1.00181391, 10519.04604187, 8.18373270e-05, 85535.99999995, 24049. ),\n",
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" ( 3, 1, 1.00120197, 10512.62069113, 3.07703301e-04, 913761.00000028, 16071.00000004),\n",
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" ( 4, 1, 1.00164458, 10517.26805716, 1.15203146e-04, 176577.0000001 , -9407. ),\n",
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" ( 5, 1, 1.00008458, 10500.88803896, 2.02276426e-04, 536068.99999626, -31487.99999998),\n",
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" (16, 1, 1.00002312, 10500.2427774 , 2.01540352e-04, -2028475.46388834, -29731.71601113)],\n",
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" dtype={'names': ['id', 'energized', 'u_pu', 'u', 'u_angle', 'p', 'q'], 'formats': ['<i4', 'i1', '<f8', '<f8', '<f8', '<f8', '<f8'], 'offsets': [0, 4, 8, 16, 24, 32, 40], 'itemsize': 48, 'aligned': True})"
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]
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},
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"metadata": {},
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"output_type": "display_data"
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},
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{
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"data": {
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"text/plain": [
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"array([(18, 1, 0.30944115, -1710395.03728345, 891.59535891, 94.04517498, 1710395.26966902, 1710500.14523965, -890.39109601, 94.04517498, 1710500.37698364),\n",
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" (19, 1, 0.11782317, -912742.88075081, -15956.83635493, 50.19126661, 912882.35112075, 913761.00000028, 16071.00000004, 50.19126661, 913902.31543777),\n",
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" (20, 1, 0.0109873 , -261688.26448931, -14640.77254911, 14.41040626, 262097.50092716, 262097.73992698, 14640.78859395, 14.41040626, 262506.33890534),\n",
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" (21, 1, 0.04259208, -85520.73992694, -24047.78859394, 4.87677287, 88837.45321603, 85535.99999995, 24049. , 4.87677287, 88852.47153001),\n",
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" (22, 1, 0.02406958, -318080.42660057, -30623.31137002, 17.57035082, 319551.16176548, 318145.99999988, 30629. , 17.57035082, 319616.97851792)],\n",
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" dtype={'names': ['id', 'energized', 'loading', 'p_from', 'q_from', 'i_from', 's_from', 'p_to', 'q_to', 'i_to', 's_to'], 'formats': ['<i4', 'i1', '<f8', '<f8', '<f8', '<f8', '<f8', '<f8', '<f8', '<f8', '<f8'], 'offsets': [0, 4, 8, 16, 24, 32, 40, 48, 56, 64, 72], 'itemsize': 80, 'aligned': True})"
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]
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},
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"metadata": {},
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"output_type": "display_data"
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}
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],
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"source": [
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"grid_generator = RadialGridGenerator(grid_class=Grid, nr_nodes=5, nr_sources=1, nr_nops=0)\n",
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"grid = grid_generator.run(seed=0)\n",
@@ -105,9 +149,29 @@
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},
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{
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"cell_type": "code",
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"execution_count": null,
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"execution_count": 4,
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"metadata": {},
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"outputs": [],
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"outputs": [
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{
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"name": "stdout",
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"output_type": "stream",
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"text": [
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" id | u_rated | node_type | feeder_branch_id | feeder_node_id | u \n",
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" 1 | 10500.0 | 0 | 0 | 0 |10502.405..\n",
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" 2 | 10500.0 | 0 | 0 | 0 |10519.046..\n",
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" 3 | 10500.0 | 0 | 0 | 0 |10512.620..\n",
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" 4 | 10500.0 | 0 | 0 | 0 |10517.268..\n",
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" 5 | 10500.0 | 0 | 0 | 0 |10500.888..\n",
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" 16 | 10500.0 | 1 | -2147483648 | -2147483648 |10500.242..\n",
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" id | from_node | to_node | from_status | to_status | feeder_branch_id | feeder_node_id | is_feeder | r1 | x1 | c1 | tan1 | i_n | i_from \n",
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" 18 | 16 | 5 | 1 | 1 | 0 | 0 | False |0.003..|4.538..| 0.0 | 0.0 |303.9194..|94.045..\n",
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" 19 | 5 | 3 | 1 | 1 | 0 | 0 | False |0.134..|0.015..| 0.0 | 0.0 |425.9880..|50.191..\n",
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" 20 | 5 | 4 | 1 | 1 | 0 | 0 | False |0.657..|2.575..| 0.0 | 0.0 |1311.550..|14.410..\n",
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" 21 | 4 | 2 | 1 | 1 | 0 | 0 | False |0.213..|0.016..| 0.0 | 0.0 |114.4995..|4.8767..\n",
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" 22 | 16 | 1 | 1 | 1 | 0 | 0 | False |0.070..|0.006..| 0.0 | 0.0 |729.9817..|17.570..\n"
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]
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}
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],
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"source": [
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"grid_generator = RadialGridGenerator(grid_class=ExtendedGrid, nr_nodes=5, nr_sources=1, nr_nops=0)\n",
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"grid = grid_generator.run(seed=0)\n",
@@ -132,9 +196,69 @@
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},
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{
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"cell_type": "code",
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"execution_count": null,
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"execution_count": 5,
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"metadata": {},
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"outputs": [],
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"outputs": [
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{
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"data": {
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"text/plain": [
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"array([[(18, 1, 0.00000000e+00, 0.00000000e+00, -0.00000000e+00, 0.00000000e+00, 0.00000000e+00, 0.00000000e+00, -0.00000000e+00, 0.00000000e+00, 0.00000000e+00),\n",
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" (19, 1, 2.93489658e-14, -2.27373675e-07, 1.20159855e-23, 1.25023098e-11, 2.27373675e-07, 2.27373675e-07, -9.32440637e-24, 1.25023098e-11, 2.27373675e-07),\n",
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" (20, 1, 9.53298261e-15, 2.27373675e-07, -2.37049963e-09, 1.25029892e-11, 2.27386032e-07, -2.27373675e-07, 2.37049963e-09, 1.25029892e-11, 2.27386032e-07),\n",
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" (21, 1, 5.47019878e-14, 1.13686838e-07, -7.10542736e-09, 6.26335228e-12, 1.13908666e-07, -1.13686838e-07, 7.10542736e-09, 6.26335228e-12, 1.13908666e-07),\n",
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" (22, 1, 3.43205974e-14, -4.54747351e-07, -2.84217094e-08, 2.50534091e-11, 4.55634664e-07, 4.54747351e-07, 2.84217094e-08, 2.50534091e-11, 4.55634664e-07)],\n",
210+
" [(18, 1, 3.44107076e-02, -1.90196733e+05, 8.75536458e+01, 1.04580823e+01, 1.90196753e+05, 1.90198033e+05, -8.75387538e+01, 1.04580823e+01, 1.90198053e+05),\n",
211+
" (19, 1, 1.31054467e-02, -1.01516404e+05, -1.78425423e+03, 5.58276417e+00, 1.01532083e+05, 1.01529000e+05, 1.78566667e+03, 5.58276417e+00, 1.01544702e+05),\n",
212+
" (20, 1, 1.22265894e-03, -2.91184071e+04, -1.62687369e+03, 1.60357909e+00, 2.91638192e+04, 2.91234777e+04, 1.62687389e+03, 1.60357909e+00, 2.91688819e+04),\n",
213+
" (21, 1, 4.74008024e-03, -9.50381100e+03, -2.67209611e+03, 5.42736993e-01, 9.87231083e+03, 9.50400000e+03, 2.67211111e+03, 5.42736993e-01, 9.87249684e+03),\n",
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" (22, 1, 2.67494191e-03, -3.53487457e+04, -3.40315196e+03, 1.95265873e+00, 3.55121847e+04, 3.53495556e+04, 3.40322222e+03, 1.95265873e+00, 3.55129976e+04)],\n",
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" [(18, 1, 6.88143111e-02, -3.80355178e+05, 1.77990815e+02, 2.09140055e+01, 3.80355220e+05, 3.80360376e+05, -1.77931259e+02, 2.09140055e+01, 3.80360418e+05),\n",
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" (19, 1, 2.62073910e-02, -2.03007629e+05, -3.56568508e+03, 1.11640363e+01, 2.03038940e+05, 2.03058000e+05, 3.57133333e+03, 1.11640363e+01, 2.03089403e+05),\n",
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" (20, 1, 2.44485484e-03, -5.82263031e+04, -3.25371699e+03, 3.20655087e+00, 5.83171419e+04, 5.82465776e+04, 3.25371779e+03, 3.20655087e+00, 5.83373850e+04),\n",
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" (21, 1, 9.47824841e-03, -1.90072443e+04, -5.34416223e+03, 1.08525505e+00, 1.97442499e+04, 1.90080000e+04, 5.34422222e+03, 1.08525505e+00, 1.97449937e+04),\n",
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" (22, 1, 5.34974762e-03, -7.06958718e+04, -6.80616342e+03, 3.90521802e+00, 7.10227439e+04, 7.06991111e+04, 6.80644444e+03, 3.90521802e+00, 7.10259952e+04)],\n",
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" [(18, 1, 1.03210817e-01, -5.70475368e+05, 2.71309189e+02, 3.13677717e+01, 5.70475432e+05, 5.70487061e+05, -2.71175216e+02, 3.13677717e+01, 5.70487125e+05),\n",
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" (19, 1, 3.93058357e-02, -3.04473694e+05, -5.34429483e+03, 1.67438177e+01, 3.04520594e+05, 3.04587000e+05, 5.35700000e+03, 1.67438177e+01, 3.04634105e+05),\n",
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" (20, 1, 3.66658822e-03, -8.73236998e+04, -4.88052995e+03, 4.80891604e+00, 8.74599801e+04, 8.73693003e+04, 4.88053174e+03, 4.80891604e+00, 8.75055097e+04),\n",
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" (21, 1, 1.42145067e-02, -2.85103003e+04, -8.01619841e+03, 1.62755444e+00, 2.96158178e+04, 2.85120000e+04, 8.01633333e+03, 1.62755444e+00, 2.96174905e+04),\n",
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" (22, 1, 8.02441714e-03, -1.06041379e+05, -1.02090344e+04, 5.85767791e+00, 1.06531678e+05, 1.06048667e+05, 1.02096667e+04, 5.85767791e+00, 1.06538993e+05)],\n",
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" [(18, 1, 1.37600231e-01, -7.60557336e+05, 3.67506454e+02, 4.18193825e+01, 7.60557425e+05, 7.60578120e+05, -3.67268330e+02, 4.18193825e+01, 7.60578209e+05),\n",
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" (19, 1, 5.24007836e-02, -4.05914622e+05, -7.12008573e+03, 2.23221096e+01, 4.05977063e+05, 4.06116000e+05, 7.14266667e+03, 2.23221096e+01, 4.06178807e+05),\n",
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" (20, 1, 4.88785959e-03, -1.16410609e+05, -6.50731261e+03, 6.41067526e+00, 1.16592346e+05, 1.16491646e+05, 6.50731578e+03, 6.41067526e+00, 1.16673257e+05),\n",
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" (21, 1, 1.89488575e-02, -3.80129796e+04, -1.06882047e+04, 2.16963541e+00, 3.94870148e+04, 3.80160000e+04, 1.06884444e+04, 2.16963541e+00, 3.94899873e+04),\n",
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" (22, 1, 1.06989505e-02, -1.41385266e+05, -1.36117649e+04, 7.81003841e+00, 1.42038986e+05, 1.41398222e+05, 1.36128889e+04, 7.81003841e+00, 1.42051990e+05)],\n",
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" [(18, 1, 1.71982560e-01, -9.50601117e+05, 4.66580299e+02, 5.22688401e+01, 9.50601232e+05, 9.50633585e+05, -4.66208307e+02, 5.22688401e+01, 9.50633699e+05),\n",
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" (19, 1, 6.54922375e-02, -5.07330430e+05, -8.89306003e+03, 2.78989130e+01, 5.07408368e+05, 5.07645000e+05, 8.92833333e+03, 2.78989130e+01, 5.07723509e+05),\n",
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" (20, 1, 6.10866949e-03, -1.45487044e+05, -8.13406499e+03, 8.01182923e+00, 1.45714251e+05, 1.45613616e+05, 8.13406995e+03, 8.01182923e+00, 1.45840626e+05),\n",
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" (21, 1, 2.36813029e-02, -4.75152825e+04, -1.33601811e+04, 2.71149821e+00, 4.93578414e+04, 4.75200000e+04, 1.33605556e+04, 2.71149821e+00, 4.93624842e+04),\n",
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" (22, 1, 1.33733478e-02, -1.76727535e+05, -1.70143550e+04, 9.76229954e+00, 1.77544670e+05, 1.76747778e+05, 1.70161111e+04, 9.76229954e+00, 1.77564988e+05)],\n",
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" [(18, 1, 2.06357811e-01, -1.14060674e+06, 5.68528416e+02, 6.27161462e+01, 1.14060689e+06, 1.14065349e+06, -5.67992857e+02, 6.27161462e+01, 1.14065363e+06),\n",
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" (19, 1, 7.85802003e-02, -6.08721140e+05, -1.06632200e+04, 3.34742292e+01, 6.08814529e+05, 6.09174000e+05, 1.07140000e+04, 3.34742292e+01, 6.09268210e+05),\n",
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" (20, 1, 7.32901843e-03, -1.74553014e+05, -9.76078714e+03, 9.61237864e+00, 1.74825707e+05, 1.74735210e+05, 9.76079428e+03, 9.61237864e+00, 1.75007619e+05),\n",
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" (21, 1, 2.84118451e-02, -5.70172096e+04, -1.60321276e+04, 3.25314311e+00, 5.92282982e+04, 5.70240000e+04, 1.60326667e+04, 3.25314311e+00, 5.92349810e+04),\n",
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" (22, 1, 1.60476089e-02, -2.12068185e+05, -2.04168047e+04, 1.17144613e+01, 2.13048729e+05, 2.12097333e+05, 2.04193333e+04, 1.17144613e+01, 2.13077986e+05)],\n",
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" [(18, 1, 2.40725988e-01, -1.33057425e+06, 6.73348499e+02, 7.31613028e+01, 1.33057442e+06, 1.33063786e+06, -6.72619694e+02, 7.31613028e+01, 1.33063803e+06),\n",
241+
" (19, 1, 9.16646747e-02, -7.10086772e+05, -1.24305679e+04, 3.90480594e+01, 7.10195567e+05, 7.10703000e+05, 1.24996667e+04, 3.90480594e+01, 7.10812912e+05),\n",
242+
" (20, 1, 8.54890694e-03, -2.03608533e+05, -1.13874791e+04, 1.12123242e+01, 2.03926726e+05, 2.03856428e+05, 1.13874888e+04, 1.12123242e+01, 2.04174235e+05),\n",
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" (21, 1, 3.31404864e-02, -6.65187612e+04, -1.87040444e+04, 3.79457035e+00, 6.90983854e+04, 6.65280000e+04, 1.87047778e+04, 3.79457035e+00, 6.91074779e+04),\n",
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" (22, 1, 1.87217340e-02, -2.47407217e+05, -2.38191139e+04, 1.36665238e+01, 2.48551164e+05, 2.47446889e+05, 2.38225556e+04, 1.36665238e+01, 2.48590983e+05)],\n",
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" [(18, 1, 2.75087099e-01, -1.52050367e+06, 7.81038246e+02, 8.36043117e+01, 1.52050387e+06, 1.52058674e+06, -7.80086534e+02, 8.36043117e+01, 1.52058694e+06),\n",
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" (19, 1, 1.04745664e-01, -8.11427346e+05, -1.41951059e+04, 4.46204048e+01, 8.11551501e+05, 8.12232000e+05, 1.42853333e+04, 4.46204048e+01, 8.12357614e+05),\n",
247+
" (20, 1, 9.76833552e-03, -2.32653613e+05, -1.30141409e+04, 1.28116665e+01, 2.33017320e+05, 2.32977271e+05, 1.30141536e+04, 1.28116665e+01, 2.33340475e+05),\n",
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" (21, 1, 3.78672290e-02, -7.60199378e+04, -2.13759313e+04, 4.33578018e+00, 7.89681036e+04, 7.60320000e+04, 2.13768889e+04, 4.33578018e+00, 7.89799747e+04),\n",
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" (22, 1, 2.13957231e-02, -2.82744631e+05, -2.72212828e+04, 1.56184869e+01, 2.84051975e+05, 2.82796444e+05, 2.72257778e+04, 1.56184869e+01, 2.84103981e+05)],\n",
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" [(18, 1, 3.09441150e-01, -1.71039504e+06, 8.91595359e+02, 9.40451750e+01, 1.71039527e+06, 1.71050015e+06, -8.90391096e+02, 9.40451750e+01, 1.71050038e+06),\n",
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" (19, 1, 1.17823170e-01, -9.12742881e+05, -1.59568364e+04, 5.01912666e+01, 9.12882351e+05, 9.13761000e+05, 1.60710000e+04, 5.01912666e+01, 9.13902315e+05),\n",
252+
" (20, 1, 1.09873047e-02, -2.61688264e+05, -1.46407725e+04, 1.44104063e+01, 2.62097501e+05, 2.62097740e+05, 1.46407886e+04, 1.44104063e+01, 2.62506339e+05),\n",
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" (21, 1, 4.25920750e-02, -8.55207399e+04, -2.40477886e+04, 4.87677287e+00, 8.88374532e+04, 8.55360000e+04, 2.40490000e+04, 4.87677287e+00, 8.88524715e+04),\n",
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" (22, 1, 2.40695761e-02, -3.18080427e+05, -3.06233114e+04, 1.75703508e+01, 3.19551162e+05, 3.18146000e+05, 3.06290000e+04, 1.75703508e+01, 3.19616979e+05)]],\n",
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" dtype={'names': ['id', 'energized', 'loading', 'p_from', 'q_from', 'i_from', 's_from', 'p_to', 'q_to', 'i_to', 's_to'], 'formats': ['<i4', 'i1', '<f8', '<f8', '<f8', '<f8', '<f8', '<f8', '<f8', '<f8', '<f8'], 'offsets': [0, 4, 8, 16, 24, 32, 40, 48, 56, 64, 72], 'itemsize': 80, 'aligned': True})"
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]
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},
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"metadata": {},
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"output_type": "display_data"
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}
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],
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"source": [
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"from power_grid_model import initialize_array\n",
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"\n",
@@ -154,6 +278,55 @@
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"# Results have been calculated for all 10 scenarios\n",
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"display(output[\"line\"])"
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]
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},
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{
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"cell_type": "markdown",
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"metadata": {},
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"source": [
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"## Create grid from input data example\n"
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]
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},
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{
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"cell_type": "code",
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"execution_count": 7,
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"metadata": {},
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"outputs": [
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{
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"name": "stdout",
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"output_type": "stream",
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"text": [
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"[( 1, 10500.) ( 2, 10500.) ( 3, 10500.) ( 4, 10500.) ( 5, 10500.)\n",
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" (16, 10500.)]\n",
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" id | u_rated | node_type | feeder_branch_id | feeder_node_id \n",
301+
" 1 | 10500.0 | 0 | -2147483648 | -2147483648 \n",
302+
" 2 | 10500.0 | 0 | -2147483648 | -2147483648 \n",
303+
" 3 | 10500.0 | 0 | -2147483648 | -2147483648 \n",
304+
" 4 | 10500.0 | 0 | -2147483648 | -2147483648 \n",
305+
" 5 | 10500.0 | 0 | -2147483648 | -2147483648 \n",
306+
" 16 | 10500.0 | 0 | -2147483648 | -2147483648 \n"
307+
]
308+
}
309+
],
310+
"source": [
311+
"from power_grid_model_ds.arrays import SourceArray, SymLoadArray, TransformerArray\n",
312+
"\n",
313+
"input_data = core_interface.create_input_from_grid()\n",
314+
"\n",
315+
"array_mapping = {\n",
316+
" \"node\": NodeArray,\n",
317+
" \"line\": LineArray,\n",
318+
" \"sym_load\": SymLoadArray,\n",
319+
" \"source\": SourceArray,\n",
320+
" \"transformer\": TransformerArray,\n",
321+
"}\n",
322+
"\n",
323+
"core_interface = PowerGridModelInterface(input_data=input_data)\n",
324+
"output = core_interface.create_grid_from_input_data(\n",
325+
" array_mapping=array_mapping,\n",
326+
")\n",
327+
"print(input_data[\"node\"])\n",
328+
"print(output.node)"
329+
]
157330
}
158331
],
159332
"metadata": {
@@ -172,7 +345,7 @@
172345
"name": "python",
173346
"nbconvert_exporter": "python",
174347
"pygments_lexer": "ipython3",
175-
"version": "3.11.9"
348+
"version": "3.12.9"
176349
}
177350
},
178351
"nbformat": 4,

‎src/power_grid_model_ds/_core/load_flow.py‎

Lines changed: 19 additions & 3 deletions
Original file line numberDiff line numberDiff line change
@@ -4,12 +4,13 @@
44

55
"""Load flow functions and classes"""
66

7-
from typing import Dict, Optional
7+
from typing import Dict, Optional, Type
88

99
import numpy as np
1010
from numpy.typing import NDArray
1111
from power_grid_model import CalculationMethod, PowerGridModel, initialize_array
1212

13+
from power_grid_model_ds._core.model.arrays.base.array import FancyArray
1314
from power_grid_model_ds._core.model.grids.base import Grid
1415

1516
PGM_ARRAYS = [
@@ -43,11 +44,11 @@ class PowerGridModelInterface:
4344

4445
def __init__(
4546
self,
46-
grid: Grid,
47+
grid: Optional[Grid] = None,
4748
input_data: Optional[Dict] = None,
4849
system_frequency: float = 50.0,
4950
):
50-
self.grid = grid
51+
self.grid = grid or Grid.empty()
5152
self.system_frequency = system_frequency
5253

5354
self.input_data = input_data or {}
@@ -63,6 +64,21 @@ def create_input_from_grid(self):
6364
self.input_data[array_name] = pgm_array
6465
return self.input_data
6566

67+
def create_grid_from_input_data(
68+
self,
69+
array_mapping: Dict[str, Type[FancyArray]],
70+
) -> Grid:
71+
"""
72+
Create Grid object from PowerGridModel input data.
73+
Note that for some arrays, not all fields are available in the PowerGridModel input data.
74+
In this case, the default values are used.
75+
"""
76+
for pgm_name, pgm_ds_array_class in array_mapping.items():
77+
if pgm_name in self.input_data:
78+
pgm_ds_array = pgm_ds_array_class(self.input_data[pgm_name])
79+
self.grid.append(pgm_ds_array)
80+
return self.grid
81+
6682
def calculate_power_flow(
6783
self,
6884
calculation_method: CalculationMethod = CalculationMethod.newton_raphson,

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