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Step-up transformer tap changer support: additional tests #868

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Step-up transformer tap changer support: additional tests #868

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52184a9
Validation cases for step up transformer
figueroa1395 Jan 8, 2025
d947149
added test grid for transformer ranking
figueroa1395 Jan 9, 2025
8eb4196
address comments: more realistic values
figueroa1395 Jan 13, 2025
8528892
addressed comments
figueroa1395 Jan 13, 2025
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63 changes: 56 additions & 7 deletions tests/cpp_unit_tests/test_tap_position_optimizer.cpp
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Original file line number Diff line number Diff line change
Expand Up @@ -184,7 +184,7 @@ TEST_CASE("Test Transformer ranking") {
CHECK_NOTHROW(pgm_tap::build_transformer_graph(get_state(6, 2, 1, 4, 5)));
}

SUBCASE("Full grid") {
SUBCASE("Full grid 1 - For graph construction steps") {
// =====Test Grid=====
// ________[0]________
// || | |
Expand Down Expand Up @@ -324,15 +324,64 @@ TEST_CASE("Test Transformer ranking") {
}

SUBCASE("Ranking complete the graph") {
// (TODO: jguo) existing demo grid is not compatible with the updated ranking
// The test grid needs to be updated here to match the new ranking logic
// pgm_tap::RankedTransformerGroups order = pgm_tap::rank_transformers(state);
// pgm_tap::RankedTransformerGroups const ref_order{
// {{Idx2D{3, 0}, Idx2D{3, 1}, Idx2D{4, 0}}, {Idx2D{3, 3}, Idx2D{3, 2}, Idx2D{3, 4}}}};
// CHECK(order == ref_order);
// The test grid 1 is not compatible with the updated logic for step up transformers
CHECK_THROWS_AS(pgm_tap::rank_transformers(state), AutomaticTapInputError);
}
}

// The test grid 2 is compatible with the updated logic for step up transformers
SUBCASE("Full grid 2 - For transformer ranking only") {
// =====Test Grid=====
// ________[0]________
// || | |
// [1] [4]--[5]
// | | |
// [2] | [8]
// | [6] |
// [3]----[7]---| [9]
// | |
// L--------------[10]
TestState state;
std::vector<NodeInput> nodes{{0, 150e3}, {1, 10e3}, {2, 10e3}, {3, 10e3}, {4, 10e3}, {5, 50e3},
{6, 10e3}, {7, 10e3}, {8, 10e3}, {9, 10e3}, {10, 10e3}};
main_core::add_component<Node>(state, nodes.begin(), nodes.end(), 50.0);

std::vector<TransformerInput> transformers{
get_transformer(11, 0, 1, BranchSide::from), get_transformer(12, 0, 1, BranchSide::from),
get_transformer(13, 2, 3, BranchSide::from), get_transformer(14, 6, 7, BranchSide::from),
get_transformer(15, 5, 8, BranchSide::from), get_transformer(16, 9, 10, BranchSide::from)};
main_core::add_component<Transformer>(state, transformers.begin(), transformers.end(), 50.0);
Comment on lines +334 to +353
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What is the purpose of this test grid?

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@figueroa1395 figueroa1395 Jan 13, 2025 •
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With the introduction of the new logic, the old grid was no longer valid for the transformer ranking algorithm, as it was pointed out by you in b642c97. Hence, the old grid was left in since it was still valid for the other parts of the "full" algorithm, while marking the transformer ranking part with CHECK_THROWS_AS(pgm_tap::rank_transformers(state), AutomaticTapInputError) in d947149; whereas the new grid is only used for the ranking itself.


std::vector<ThreeWindingTransformerInput> transformers3w{
get_transformer3w(17, 0, 4, 5, Branch3Side::side_2, 0)};
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main_core::add_component<ThreeWindingTransformer>(state, transformers3w.begin(), transformers3w.end(), 50.0);

std::vector<LineInput> lines{get_line_input(18, 4, 6), get_line_input(19, 3, 10)};
main_core::add_component<Line>(state, lines.begin(), lines.end(), 50.0);

std::vector<LinkInput> links{{20, 1, 2, 1, 1}, {21, 3, 7, 1, 1}, {22, 8, 9, 1, 1}};
main_core::add_component<Link>(state, links.begin(), links.end(), 50.0);

std::vector<SourceInput> sources{{23, 0, 1, 1.0, 0, nan, nan, nan}};
main_core::add_component<Source>(state, sources.begin(), sources.end(), 50.0);

std::vector<TransformerTapRegulatorInput> regulators{
get_regulator(24, 11, ControlSide::to), get_regulator(25, 12, ControlSide::to),
get_regulator(26, 13, ControlSide::to), get_regulator(27, 14, ControlSide::to),
get_regulator(28, 15, ControlSide::to), get_regulator(29, 16, ControlSide::to),
get_regulator(30, 17, ControlSide::side_2)};
main_core::add_component<TransformerTapRegulator>(state, regulators.begin(), regulators.end(), 50.0);

state.components.set_construction_complete();

// Subcases
SUBCASE("Ranking complete the graph") {
pgm_tap::RankedTransformerGroups order = pgm_tap::rank_transformers(state);
pgm_tap::RankedTransformerGroups const ref_order{
{{Idx2D{3, 0}, Idx2D{3, 1}, Idx2D{4, 0}, Idx2D{3, 4}}, {Idx2D{3, 2}, Idx2D{3, 3}, Idx2D{3, 5}}}};
CHECK(order == ref_order);
}
}
}

namespace optimizer::tap_position_optimizer::test {
Expand Down
24 changes: 24 additions & 0 deletions tests/data/power_flow/automatic-tap-regulator/trafo-control-side-HV-any-valid-tap/input.json
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{
"version": "1.0",
"type": "input",
"is_batch": false,
"attributes": {},
"data": {
"node": [
{"id": 2, "u_rated": 10000},
{"id": 4, "u_rated": 400}
],
"transformer": [
{"id": 3, "from_node": 2, "to_node": 4, "from_status": 1, "to_status": 1, "u1": 10000, "u2": 400, "sn": 100000, "uk": 0.1, "pk": 1000, "i0": 1e-06, "p0": 100, "winding_from": 2, "winding_to": 1, "clock": 5, "tap_side": 0, "tap_pos": 3, "tap_min": -11, "tap_max": 9, "tap_size": 100}
],
"sym_load": [
{"id": 5, "node": 4, "status": 1, "type": 0, "p_specified": 30000, "q_specified": 10000}
],
"source": [
{"id": 1, "node": 2, "status": 1, "u_ref": 1.0}
],
"transformer_tap_regulator": [
{"id": 6, "regulated_object": 3, "status": 1, "control_side": 0, "u_set": 10000, "u_band": 500}
]
}
}
3 changes: 3 additions & 0 deletions ...power_flow/automatic-tap-regulator/trafo-control-side-HV-any-valid-tap/input.json.license
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SPDX-FileCopyrightText: Contributors to the Power Grid Model project <[email protected]>

SPDX-License-Identifier: MPL-2.0
10 changes: 10 additions & 0 deletions ...s/data/power_flow/automatic-tap-regulator/trafo-control-side-HV-any-valid-tap/params.json
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{
"calculation_method": "newton_raphson",
"tap_changing_strategy": "any_valid_tap",
"rtol": 1e-05,
"atol": 1e-05,
"fail": {
"raises": "AutomaticTapInputError",
"reason": "Control logic automatic tap regulator in step up transformer is not yet implemented"
}
}
3 changes: 3 additions & 0 deletions ...ower_flow/automatic-tap-regulator/trafo-control-side-HV-any-valid-tap/params.json.license
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SPDX-FileCopyrightText: Contributors to the Power Grid Model project <[email protected]>

SPDX-License-Identifier: MPL-2.0
24 changes: 24 additions & 0 deletions ...ta/power_flow/automatic-tap-regulator/trafo-control-side-HV-any-valid-tap/sym_output.json
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{
"version": "1.0",
"type": "sym_output",
"is_batch": false,
"attributes": {},
"data": {
"node": [
{"id": 2, "energized": 1, "u_pu": 0.9999994897958192, "u": 9999.994897958191, "u_angle": -4.976276188195561e-08, "p": 30201.87675109433, "q": 11046.68183452673},
{"id": 4, "energized": 1, "u_pu": 0.976387253223602, "u": 390.5549012894408, "u_angle": -2.618511710996588, "p": -29999.99999999977, "q": -9999.999999999955}
],
"transformer": [
{"id": 3, "energized": 1, "loading": 0.3215870860033959, "p_from": 30201.87675109433, "q_from": 11046.68183452673, "i_from": 1.856686505546027, "s_from": 32158.70860033959, "p_to": -29999.99999999977, "q_to": -9999.999999999955, "i_to": 46.74738051738032, "s_to": 31622.77660168356}
],
"sym_load": [
{"id": 5, "energized": 1, "p": 30000, "q": 10000, "i": 46.74738051738068, "s": 31622.77660168379, "pf": 0.9486832980505139}
],
"source": [
{"id": 1, "energized": 1, "p": 30201.87675109433, "q": 11046.68183452673, "i": 1.856686505546027, "s": 32158.70860033959, "pf": 0.9391507950905532}
],
"transformer_tap_regulator": [
{"id": 6, "energized": 1, "tap_pos": 1}
]
}
}
3 changes: 3 additions & 0 deletions ..._flow/automatic-tap-regulator/trafo-control-side-HV-any-valid-tap/sym_output.json.license
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SPDX-FileCopyrightText: Contributors to the Power Grid Model project <[email protected]>

SPDX-License-Identifier: MPL-2.0
24 changes: 24 additions & 0 deletions tests/data/power_flow/automatic-tap-regulator/trafo-control-side-HV-fast-any-tap/input.json
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{
"version": "1.0",
"type": "input",
"is_batch": false,
"attributes": {},
"data": {
"node": [
{"id": 2, "u_rated": 10000},
{"id": 4, "u_rated": 400}
],
"transformer": [
{"id": 3, "from_node": 2, "to_node": 4, "from_status": 1, "to_status": 1, "u1": 10000, "u2": 400, "sn": 100000, "uk": 0.1, "pk": 1000, "i0": 1e-06, "p0": 100, "winding_from": 2, "winding_to": 1, "clock": 5, "tap_side": 0, "tap_pos": 3, "tap_min": -11, "tap_max": 9, "tap_size": 100}
],
"sym_load": [
{"id": 5, "node": 4, "status": 1, "type": 0, "p_specified": 30000, "q_specified": 10000}
],
"source": [
{"id": 1, "node": 2, "status": 1, "u_ref": 1.0}
],
"transformer_tap_regulator": [
{"id": 6, "regulated_object": 3, "status": 1, "control_side": 0, "u_set": 10000, "u_band": 500}
]
}
}
3 changes: 3 additions & 0 deletions .../power_flow/automatic-tap-regulator/trafo-control-side-HV-fast-any-tap/input.json.license
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SPDX-FileCopyrightText: Contributors to the Power Grid Model project <[email protected]>

SPDX-License-Identifier: MPL-2.0
10 changes: 10 additions & 0 deletions tests/data/power_flow/automatic-tap-regulator/trafo-control-side-HV-fast-any-tap/params.json
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{
"calculation_method": "newton_raphson",
"tap_changing_strategy": "fast_any_tap",
"rtol": 1e-05,
"atol": 1e-05,
"fail": {
"raises": "AutomaticTapInputError",
"reason": "Control logic automatic tap regulator in step up transformer is not yet implemented"
}
}
3 changes: 3 additions & 0 deletions ...power_flow/automatic-tap-regulator/trafo-control-side-HV-fast-any-tap/params.json.license
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SPDX-FileCopyrightText: Contributors to the Power Grid Model project <[email protected]>

SPDX-License-Identifier: MPL-2.0
24 changes: 24 additions & 0 deletions ...ata/power_flow/automatic-tap-regulator/trafo-control-side-HV-fast-any-tap/sym_output.json
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{
"version": "1.0",
"type": "sym_output",
"is_batch": false,
"attributes": {},
"data": {
"node": [
{"id": 2, "energized": 1, "u_pu": 0.9999994897958192, "u": 9999.994897958191, "u_angle": -4.976276188195561e-08, "p": 30201.65062487359, "q": 11004.60371157344},
{"id": 4, "energized": 1, "u_pu": 0.9966854346351138, "u": 398.6741738540455, "u_angle": -2.618511710996588, "p": -30000.00000000017, "q": -10000.00000000001}
],
"transformer": [
{"id": 3, "energized": 1, "loading": 0.3214406637803785, "p_from": 30201.65062487359, "q_from": 11004.60371157344, "i_from": 1.855841127489525, "s_from": 32144.06637803785, "p_to": -30000.00000000017, "q_to": -10000.00000000001, "i_to": 45.7953381003046, "s_to": 31622.77660168396}
],
"sym_load": [
{"id": 5, "energized": 1, "p": 30000, "q": 10000, "i": 45.79533810030436, "s": 31622.77660168379, "pf": 0.9486832980505139}
],
"source": [
{"id": 1, "energized": 1, "p": 30201.65062487359, "q": 11004.60371157344, "i": 1.855841127489525, "s": 32144.06637803785, "pf": 0.9395715610364904}
],
"transformer_tap_regulator": [
{"id": 6, "energized": 1, "tap_pos": -1}
]
}
}
3 changes: 3 additions & 0 deletions ...r_flow/automatic-tap-regulator/trafo-control-side-HV-fast-any-tap/sym_output.json.license
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SPDX-FileCopyrightText: Contributors to the Power Grid Model project <[email protected]>

SPDX-License-Identifier: MPL-2.0
24 changes: 24 additions & 0 deletions .../data/power_flow/automatic-tap-regulator/trafo-control-side-HV-max-voltage-tap/input.json
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{
"version": "1.0",
"type": "input",
"is_batch": false,
"attributes": {},
"data": {
"node": [
{"id": 2, "u_rated": 10000},
{"id": 4, "u_rated": 400}
],
"transformer": [
{"id": 3, "from_node": 2, "to_node": 4, "from_status": 1, "to_status": 1, "u1": 10000, "u2": 400, "sn": 100000, "uk": 0.1, "pk": 1000, "i0": 1e-06, "p0": 10000, "winding_from": 2, "winding_to": 1, "clock": 5, "tap_side": 0, "tap_pos": 3, "tap_min": -11, "tap_max": 9, "tap_size": 100}
],
"sym_load": [
{"id": 5, "node": 4, "status": 1, "type": 0, "p_specified": 30000, "q_specified": 10000}
],
"source": [
{"id": 1, "node": 2, "status": 1, "u_ref": 1.0}
],
"transformer_tap_regulator": [
{"id": 6, "regulated_object": 3, "status": 1, "control_side": 0, "u_set": 10000, "u_band": 500}
]
}
}
3 changes: 3 additions & 0 deletions ...wer_flow/automatic-tap-regulator/trafo-control-side-HV-max-voltage-tap/input.json.license
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SPDX-FileCopyrightText: Contributors to the Power Grid Model project <[email protected]>

SPDX-License-Identifier: MPL-2.0
10 changes: 10 additions & 0 deletions ...data/power_flow/automatic-tap-regulator/trafo-control-side-HV-max-voltage-tap/params.json
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{
"calculation_method": "newton_raphson",
"tap_changing_strategy": "max_voltage_tap",
"rtol": 1e-05,
"atol": 1e-05,
"fail": {
"raises": "AutomaticTapInputError",
"reason": "Control logic automatic tap regulator in step up transformer is not yet implemented"
}
}
3 changes: 3 additions & 0 deletions ...er_flow/automatic-tap-regulator/trafo-control-side-HV-max-voltage-tap/params.json.license
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SPDX-FileCopyrightText: Contributors to the Power Grid Model project <[email protected]>

SPDX-License-Identifier: MPL-2.0
24 changes: 24 additions & 0 deletions .../power_flow/automatic-tap-regulator/trafo-control-side-HV-max-voltage-tap/sym_output.json
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{
"version": "1.0",
"type": "sym_output",
"is_batch": false,
"attributes": {},
"data": {
"node": [
{"id": 2, "energized": 1, "u_pu": 0.999999490008046, "u": 9999.994900080461, "u_angle": -4.976345265642619e-08, "p": 30201.76880478965, "q": 10963.46426253733},
{"id": 4, "energized": 1, "u_pu": 1.017806866433826, "u": 407.1227465735306, "u_angle": -2.618471703642352, "p": -30000.00000000019, "q": -10000.00000000026}
],
"transformer": [
{"id": 3, "energized": 1, "loading": 0.3213011651976846, "p_from": 30201.76880478965, "q_from": 10963.46426253733, "i_from": 1.855035723331389, "s_from": 32130.11651976846, "p_to": -30000.00000000019, "q_to": -10000.00000000026, "i_to": 44.84499757669082, "s_to": 31622.77660168405}
],
"sym_load": [
{"id": 5, "energized": 1, "p": 30000, "q": 10000, "i": 44.84499757669044, "s": 31622.77660168379, "pf": 0.9486832980505139}
],
"source": [
{"id": 1, "energized": 1, "p": 30201.76880478965, "q": 10963.46426253733, "i": 1.855035723331389, "s": 32130.11651976846, "pf": 0.939983170811336}
],
"transformer_tap_regulator": [
{"id": 6, "energized": 1, "tap_pos": -3}
]
}
}
3 changes: 3 additions & 0 deletions ...low/automatic-tap-regulator/trafo-control-side-HV-max-voltage-tap/sym_output.json.license
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SPDX-FileCopyrightText: Contributors to the Power Grid Model project <[email protected]>

SPDX-License-Identifier: MPL-2.0
24 changes: 24 additions & 0 deletions .../data/power_flow/automatic-tap-regulator/trafo-control-side-HV-min-voltage-tap/input.json
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{
"version": "1.0",
"type": "input",
"is_batch": false,
"attributes": {},
"data": {
"node": [
{"id": 2, "u_rated": 10000},
{"id": 4, "u_rated": 400}
],
"transformer": [
{"id": 3, "from_node": 2, "to_node": 4, "from_status": 1, "to_status": 1, "u1": 10000, "u2": 400, "sn": 100000, "uk": 0.1, "pk": 1000, "i0": 1e-06, "p0": 100, "winding_from": 2, "winding_to": 1, "clock": 5, "tap_side": 0, "tap_pos": 3, "tap_min": -11, "tap_max": 9, "tap_size": 100}
],
"sym_load": [
{"id": 5, "node": 4, "status": 1, "type": 0, "p_specified": 30000, "q_specified": 10000}
],
"source": [
{"id": 1, "node": 2, "status": 1, "u_ref": 1.0}
],
"transformer_tap_regulator": [
{"id": 6, "regulated_object": 3, "status": 1, "control_side": 0, "u_set": 10000, "u_band": 500}
]
}
}
3 changes: 3 additions & 0 deletions ...wer_flow/automatic-tap-regulator/trafo-control-side-HV-min-voltage-tap/input.json.license
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SPDX-FileCopyrightText: Contributors to the Power Grid Model project <[email protected]>

SPDX-License-Identifier: MPL-2.0
10 changes: 10 additions & 0 deletions ...data/power_flow/automatic-tap-regulator/trafo-control-side-HV-min-voltage-tap/params.json
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{
"calculation_method": "newton_raphson",
"tap_changing_strategy": "min_voltage_tap",
"rtol": 1e-05,
"atol": 1e-05,
"fail": {
"raises": "AutomaticTapInputError",
"reason": "Control logic automatic tap regulator in step up transformer is not yet implemented"
}
}
3 changes: 3 additions & 0 deletions ...er_flow/automatic-tap-regulator/trafo-control-side-HV-min-voltage-tap/params.json.license
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SPDX-FileCopyrightText: Contributors to the Power Grid Model project <[email protected]>

SPDX-License-Identifier: MPL-2.0
24 changes: 24 additions & 0 deletions .../power_flow/automatic-tap-regulator/trafo-control-side-HV-min-voltage-tap/sym_output.json
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{
"version": "1.0",
"type": "sym_output",
"is_batch": false,
"attributes": {},
"data": {
"node": [
{"id": 2, "energized": 1, "u_pu": 0.9999994897958192, "u": 9999.994897958191, "u_angle": -4.976276188195561e-08, "p": 30201.87675109433, "q": 11046.68183452673},
{"id": 4, "energized": 1, "u_pu": 0.976387253223602, "u": 390.5549012894408, "u_angle": -2.618511710996588, "p": -29999.99999999977, "q": -9999.999999999955}
],
"transformer": [
{"id": 3, "energized": 1, "loading": 0.3215870860033959, "p_from": 30201.87675109433, "q_from": 11046.68183452673, "i_from": 1.856686505546027, "s_from": 32158.70860033959, "p_to": -29999.99999999977, "q_to": -9999.999999999955, "i_to": 46.74738051738032, "s_to": 31622.77660168356}
],
"sym_load": [
{"id": 5, "energized": 1, "p": 30000, "q": 10000, "i": 46.74738051738068, "s": 31622.77660168379, "pf": 0.9486832980505139}
],
"source": [
{"id": 1, "energized": 1, "p": 30201.87675109433, "q": 11046.68183452673, "i": 1.856686505546027, "s": 32158.70860033959, "pf": 0.9391507950905532}
],
"transformer_tap_regulator": [
{"id": 6, "energized": 1, "tap_pos": 1}
]
}
}
3 changes: 3 additions & 0 deletions ...low/automatic-tap-regulator/trafo-control-side-HV-min-voltage-tap/sym_output.json.license
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SPDX-FileCopyrightText: Contributors to the Power Grid Model project <[email protected]>

SPDX-License-Identifier: MPL-2.0
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