{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2012:T3MGRYY2Q2ZIYJSXWOD2XMA3YO","short_pith_number":"pith:T3MGRYY2","schema_version":"1.0","canonical_sha256":"9ed868e31a86b28c2657b387abb01bc3aeb4db9894ee22a6969a6071287de1bd","source":{"kind":"arxiv","id":"1202.5684","version":1},"attestation_state":"computed","paper":{"title":"Fractional Order Modeling of a PHWR Under Step-Back Condition and Control of Its Global Power with a Robust PI{\\lambda}D{\\mu} Controller","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"cs.SY","authors_text":"Amitava Gupta, Saptarshi Das, Shantanu Das","submitted_at":"2012-02-25T19:11:59Z","abstract_excerpt":"Bulk reduction of reactor power within a small finite time interval under abnormal conditions is referred to as step-back. In this paper, a 500MWe Canadian Deuterium Uranium (CANDU) type Pressurized Heavy Water Reactor (PHWR) is modeled using few variants of Least Square Estimator (LSE) from practical test data under a control rod drop scenario in order to design a control system to achieve a dead-beat response during a stepped reduction of its global power. A new fractional order (FO) model reduction technique is attempted which increases the parametric robustness of the control loop due to l"},"verification_status":{"content_addressed":true,"pith_receipt":true,"author_attested":false,"weak_author_claims":0,"strong_author_claims":0,"externally_anchored":false,"storage_verified":false,"citation_signatures":0,"replication_records":0,"graph_snapshot":true,"references_resolved":false,"formal_links_present":false},"canonical_record":{"source":{"id":"1202.5684","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.SY","submitted_at":"2012-02-25T19:11:59Z","cross_cats_sorted":[],"title_canon_sha256":"508dc62efe944b8158981d68a05d5a2a92bb65f7d11a738d795d0e4721722ae7","abstract_canon_sha256":"7ffa0da7f6e2ab0761a5d47d694a1312f6716a8d36add24d09d469a2255d7456"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T04:01:25.057520Z","signature_b64":"xtA/oEYSHxaV90NgNmNsZ29wP4ejZd4phGKpXR25mpfWVMjqtHxnzBqxcj10x2568diNtdr422DS9XXxjsx1AA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"9ed868e31a86b28c2657b387abb01bc3aeb4db9894ee22a6969a6071287de1bd","last_reissued_at":"2026-05-18T04:01:25.056820Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T04:01:25.056820Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Fractional Order Modeling of a PHWR Under Step-Back Condition and Control of Its Global Power with a Robust PI{\\lambda}D{\\mu} Controller","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"cs.SY","authors_text":"Amitava Gupta, Saptarshi Das, Shantanu Das","submitted_at":"2012-02-25T19:11:59Z","abstract_excerpt":"Bulk reduction of reactor power within a small finite time interval under abnormal conditions is referred to as step-back. In this paper, a 500MWe Canadian Deuterium Uranium (CANDU) type Pressurized Heavy Water Reactor (PHWR) is modeled using few variants of Least Square Estimator (LSE) from practical test data under a control rod drop scenario in order to design a control system to achieve a dead-beat response during a stepped reduction of its global power. A new fractional order (FO) model reduction technique is attempted which increases the parametric robustness of the control loop due to l"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1202.5684","kind":"arxiv","version":1},"verdict":{"id":null,"model_set":{},"created_at":null,"strongest_claim":"","one_line_summary":"","pipeline_version":null,"weakest_assumption":"","pith_extraction_headline":""},"references":{"count":0,"sample":[],"resolved_work":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57","internal_anchors":0},"formal_canon":{"evidence_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"author_claims":{"count":0,"strong_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"builder_version":"pith-number-builder-2026-05-17-v1"},"aliases":[{"alias_kind":"arxiv","alias_value":"1202.5684","created_at":"2026-05-18T04:01:25.056933+00:00"},{"alias_kind":"arxiv_version","alias_value":"1202.5684v1","created_at":"2026-05-18T04:01:25.056933+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1202.5684","created_at":"2026-05-18T04:01:25.056933+00:00"},{"alias_kind":"pith_short_12","alias_value":"T3MGRYY2Q2ZI","created_at":"2026-05-18T12:27:23.164592+00:00"},{"alias_kind":"pith_short_16","alias_value":"T3MGRYY2Q2ZIYJSX","created_at":"2026-05-18T12:27:23.164592+00:00"},{"alias_kind":"pith_short_8","alias_value":"T3MGRYY2","created_at":"2026-05-18T12:27:23.164592+00:00"}],"events":[],"event_summary":{},"paper_claims":[],"inbound_citations":{"count":0,"internal_anchor_count":0,"sample":[]},"formal_canon":{"evidence_count":0,"sample":[],"anchors":[]},"links":{"html":"https://pith.science/pith/T3MGRYY2Q2ZIYJSXWOD2XMA3YO","json":"https://pith.science/pith/T3MGRYY2Q2ZIYJSXWOD2XMA3YO.json","graph_json":"https://pith.science/api/pith-number/T3MGRYY2Q2ZIYJSXWOD2XMA3YO/graph.json","events_json":"https://pith.science/api/pith-number/T3MGRYY2Q2ZIYJSXWOD2XMA3YO/events.json","paper":"https://pith.science/paper/T3MGRYY2"},"agent_actions":{"view_html":"https://pith.science/pith/T3MGRYY2Q2ZIYJSXWOD2XMA3YO","download_json":"https://pith.science/pith/T3MGRYY2Q2ZIYJSXWOD2XMA3YO.json","view_paper":"https://pith.science/paper/T3MGRYY2","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=1202.5684&json=true","fetch_graph":"https://pith.science/api/pith-number/T3MGRYY2Q2ZIYJSXWOD2XMA3YO/graph.json","fetch_events":"https://pith.science/api/pith-number/T3MGRYY2Q2ZIYJSXWOD2XMA3YO/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/T3MGRYY2Q2ZIYJSXWOD2XMA3YO/action/timestamp_anchor","attest_storage":"https://pith.science/pith/T3MGRYY2Q2ZIYJSXWOD2XMA3YO/action/storage_attestation","attest_author":"https://pith.science/pith/T3MGRYY2Q2ZIYJSXWOD2XMA3YO/action/author_attestation","sign_citation":"https://pith.science/pith/T3MGRYY2Q2ZIYJSXWOD2XMA3YO/action/citation_signature","submit_replication":"https://pith.science/pith/T3MGRYY2Q2ZIYJSXWOD2XMA3YO/action/replication_record"}},"created_at":"2026-05-18T04:01:25.056933+00:00","updated_at":"2026-05-18T04:01:25.056933+00:00"}