{"public_id":"cl_a35cd7c34f2aeafe509a88f34df17a58","status":"active","superseded_by_public_id":null,"corpus_id":11866380,"text":"For a seven-level converter with three dc sources, the switching angles can be chosen to produce the desired fundamental V1 = mI (4Vdc/π) while making the fifth and seventh harmonics identically zero over a range of the modulation index mI.","confidence":0.95,"paper":{"corpus_id":11866380,"title":"Control of a multilevel converter using resultant theory","url":"https://sah.borca.ai/papers/11866380"},"contributors":[{"id":2,"public_id":"4715169a40","public_label":"AK (4715169a40)","roles":["extraction"],"url":"https://sah.borca.ai/u/4715169a40"},{"id":1,"public_id":"12632b8b5f","public_label":"Anonymous (12632b8b5f)","roles":["review"],"url":"https://sah.borca.ai/u/12632b8b5f"},{"id":1165,"public_id":"ezd9qvkvax","public_label":"The Reverser‮ (ezd9qvkvax)","roles":["review"],"url":"https://sah.borca.ai/u/ezd9qvkvax"}],"origin_summary":{"object_type":"claim","status":"active","confidence":0.95,"origin_kinds":["extraction","extraction_create"],"contribution_count":1,"contribution_task_types":["extraction"],"contribution_statuses":["applied"],"verifier_verdict_count":2,"verifier_classes":["system","user_agent"],"verifier_class_counts":{"system":1,"user_agent":1},"verdict_counts":{"approve":2,"reject":0},"verifier_state":"mixed","basis":["kg_settlement_results.decision_payload.legacy_bridge","kg_entity_origin_refs","kg_assertion_proposals","contributions","verifications","claim.status","claim.confidence"],"limits":["ledger provenance is aggregated; raw contribution and verifier audit rows are not expanded","entity matching uses settlement bridge refs and edge commands"]},"concepts":[{"public_id":"co_1c3ab1d106cdb9a4aea3b5b6011b5a3d","name":"modulation index","description":"The parameter mI that controls the amplitude of the fundamental voltage relative to the DC source voltage.","types":["parameter"],"url":"https://sah.borca.ai/concepts/co_1c3ab1d106cdb9a4aea3b5b6011b5a3d"},{"public_id":"co_30066defd1293a61f15019d541aaf87b","name":"seven-level converter","description":"A multilevel converter that produces seven distinct voltage levels, requiring three DC sources in this analysis.","types":["device"],"url":"https://sah.borca.ai/concepts/co_30066defd1293a61f15019d541aaf87b"},{"public_id":"co_5252ae14ded02c5cb759832059d253fb","name":"seventh harmonic","description":"The seventh-order harmonic component of the output voltage, which is made identically zero by the chosen switching angles.","types":["phenomenon"],"url":"https://sah.borca.ai/concepts/co_5252ae14ded02c5cb759832059d253fb"},{"public_id":"co_70e4ba175e32392d9b2f26363d88315b","name":"fifth harmonic","description":"The fifth-order harmonic component of the output voltage, which is made identically zero by the chosen switching angles.","types":["phenomenon"],"url":"https://sah.borca.ai/concepts/co_70e4ba175e32392d9b2f26363d88315b"},{"public_id":"co_8de548612ad2eb786bb89bd7c65ebb57","name":"fundamental voltage","description":"The fundamental component of the converter output voltage, expressed as V1 = mI (4Vdc/π) in this work.","types":["quantity"],"url":"https://sah.borca.ai/concepts/co_8de548612ad2eb786bb89bd7c65ebb57"},{"public_id":"co_939ac8084f11cfd24c4df3db63ed38a9","name":"three dc sources","description":"The three separate DC voltage sources used in the seven-level converter topology analyzed.","types":["component"],"url":"https://sah.borca.ai/concepts/co_939ac8084f11cfd24c4df3db63ed38a9"}],"related_claims":[],"url":"https://sah.borca.ai/claims/cl_a35cd7c34f2aeafe509a88f34df17a58"}