{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2017:TCRAS4XB535SS5OIKXJEP7CECR","short_pith_number":"pith:TCRAS4XB","canonical_record":{"source":{"id":"1703.08661","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.SY","submitted_at":"2017-03-25T07:45:46Z","cross_cats_sorted":[],"title_canon_sha256":"613691fae35407ef677a2fef4a34c71207d376ae4a46943938aba8c5930ed318","abstract_canon_sha256":"682e8066733e6280dafff0fffa387c22ea1db78c9159af900845219a34a9f87b"},"schema_version":"1.0"},"canonical_sha256":"98a20972e1eefb2975c855d247fc44145f5b33e0d8cfc0e571568f49de758feb","source":{"kind":"arxiv","id":"1703.08661","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1703.08661","created_at":"2026-05-18T00:47:55Z"},{"alias_kind":"arxiv_version","alias_value":"1703.08661v1","created_at":"2026-05-18T00:47:55Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1703.08661","created_at":"2026-05-18T00:47:55Z"},{"alias_kind":"pith_short_12","alias_value":"TCRAS4XB535S","created_at":"2026-05-18T12:31:46Z"},{"alias_kind":"pith_short_16","alias_value":"TCRAS4XB535SS5OI","created_at":"2026-05-18T12:31:46Z"},{"alias_kind":"pith_short_8","alias_value":"TCRAS4XB","created_at":"2026-05-18T12:31:46Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2017:TCRAS4XB535SS5OIKXJEP7CECR","target":"record","payload":{"canonical_record":{"source":{"id":"1703.08661","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.SY","submitted_at":"2017-03-25T07:45:46Z","cross_cats_sorted":[],"title_canon_sha256":"613691fae35407ef677a2fef4a34c71207d376ae4a46943938aba8c5930ed318","abstract_canon_sha256":"682e8066733e6280dafff0fffa387c22ea1db78c9159af900845219a34a9f87b"},"schema_version":"1.0"},"canonical_sha256":"98a20972e1eefb2975c855d247fc44145f5b33e0d8cfc0e571568f49de758feb","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:47:55.939298Z","signature_b64":"/GfL2DE583tDzj6G261rEFfEY+K8MfagBW0J+wFmg3majGo6xddR6WP0nK/pGdWS7g1Metl5gkKMKtth6+HYCA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"98a20972e1eefb2975c855d247fc44145f5b33e0d8cfc0e571568f49de758feb","last_reissued_at":"2026-05-18T00:47:55.938660Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:47:55.938660Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1703.08661","source_version":1,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-18T00:47:55Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"k4Z+NIMzre8qa3QJaSooH0KxO3Ze/RxxzoGY0yJsVultyHqoa985hdi7Kc0DZQSw0wpJ2SUiuF4M/VtWieUoDQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-07T12:58:57.834877Z"},"content_sha256":"afb8a885ef872c1fe595704f0ce5f7251d0e5168c0ef062172ac564a0fceea91","schema_version":"1.0","event_id":"sha256:afb8a885ef872c1fe595704f0ce5f7251d0e5168c0ef062172ac564a0fceea91"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2017:TCRAS4XB535SS5OIKXJEP7CECR","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Modeling and control of modern wind turbine systems: An introduction","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"cs.SY","authors_text":"Christian Dirscherl, Christoph M. Hackl, Korbinian Schechner","submitted_at":"2017-03-25T07:45:46Z","abstract_excerpt":"This chapter provides an introduction to the modeling and control of power generation from wind turbine systems. In modeling, the focus is on the electrical components: electrical machine (e.g. permanent-magnet synchronous generators), back-to-back converter (consisting of machine-side and grid-side converter sharing a common DC-link), mains filters and ideal (balanced) power grid. The aerodynamics and the torque generation of the wind turbine are explained in simplified terms using a so-called power coefficient. The overall control system is considered. In particular, the phase-locked loop sy"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1703.08661","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"},"verdict_id":null},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-18T00:47:55Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"5HqM6OnQCEq2btCey9C8K9hvddN8CI8Bmkfv+ZelC6YdE92i6g0YmXlsNSUvGkIu+B/Vt6B5ekzIbka8bMVRDQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-07T12:58:57.835547Z"},"content_sha256":"2ec90fa0865968521f111c3cc3ee31805f9153aa641e063d792c0c0fcc9162f7","schema_version":"1.0","event_id":"sha256:2ec90fa0865968521f111c3cc3ee31805f9153aa641e063d792c0c0fcc9162f7"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/TCRAS4XB535SS5OIKXJEP7CECR/bundle.json","state_url":"https://pith.science/pith/TCRAS4XB535SS5OIKXJEP7CECR/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/TCRAS4XB535SS5OIKXJEP7CECR/bundle.json","status":"primary"}],"public_keys":[{"key_id":"pith-v1-2026-05","algorithm":"ed25519","format":"raw","public_key_b64":"stVStoiQhXFxp4s2pdzPNoqVNBMojDU/fJ2db5S3CbM=","public_key_hex":"b2d552b68890857171a78b36a5dccf368a953413288c353f7c9d9d6f94b709b3","fingerprint_sha256_b32_first128bits":"RVFV5Z2OI2J3ZUO7ERDEBCYNKS","fingerprint_sha256_hex":"8d4b5ee74e4693bcd1df2446408b0d54","rotates_at":null,"url":"https://pith.science/pith-signing-key.json","notes":"Pith uses this Ed25519 key to sign canonical record SHA-256 digests. Verify with: ed25519_verify(public_key, message=canonical_sha256_bytes, signature=base64decode(signature_b64))."}],"merge_version":"pith-open-graph-merge-v1","built_at":"2026-06-07T12:58:57Z","links":{"resolver":"https://pith.science/pith/TCRAS4XB535SS5OIKXJEP7CECR","bundle":"https://pith.science/pith/TCRAS4XB535SS5OIKXJEP7CECR/bundle.json","state":"https://pith.science/pith/TCRAS4XB535SS5OIKXJEP7CECR/state.json","well_known_bundle":"https://pith.science/.well-known/pith/TCRAS4XB535SS5OIKXJEP7CECR/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2017:TCRAS4XB535SS5OIKXJEP7CECR","merge_version":"pith-open-graph-merge-v1","event_count":2,"valid_event_count":2,"invalid_event_count":0,"equivocation_count":0,"current":{"canonical_record":{"metadata":{"abstract_canon_sha256":"682e8066733e6280dafff0fffa387c22ea1db78c9159af900845219a34a9f87b","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.SY","submitted_at":"2017-03-25T07:45:46Z","title_canon_sha256":"613691fae35407ef677a2fef4a34c71207d376ae4a46943938aba8c5930ed318"},"schema_version":"1.0","source":{"id":"1703.08661","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1703.08661","created_at":"2026-05-18T00:47:55Z"},{"alias_kind":"arxiv_version","alias_value":"1703.08661v1","created_at":"2026-05-18T00:47:55Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1703.08661","created_at":"2026-05-18T00:47:55Z"},{"alias_kind":"pith_short_12","alias_value":"TCRAS4XB535S","created_at":"2026-05-18T12:31:46Z"},{"alias_kind":"pith_short_16","alias_value":"TCRAS4XB535SS5OI","created_at":"2026-05-18T12:31:46Z"},{"alias_kind":"pith_short_8","alias_value":"TCRAS4XB","created_at":"2026-05-18T12:31:46Z"}],"graph_snapshots":[{"event_id":"sha256:2ec90fa0865968521f111c3cc3ee31805f9153aa641e063d792c0c0fcc9162f7","target":"graph","created_at":"2026-05-18T00:47:55Z","signer":{"key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signer_id":"pith.science","signer_type":"pith_registry"},"payload":{"graph_snapshot":{"author_claims":{"count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57","strong_count":0},"builder_version":"pith-number-builder-2026-05-17-v1","claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"formal_canon":{"evidence_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"paper":{"abstract_excerpt":"This chapter provides an introduction to the modeling and control of power generation from wind turbine systems. In modeling, the focus is on the electrical components: electrical machine (e.g. permanent-magnet synchronous generators), back-to-back converter (consisting of machine-side and grid-side converter sharing a common DC-link), mains filters and ideal (balanced) power grid. The aerodynamics and the torque generation of the wind turbine are explained in simplified terms using a so-called power coefficient. The overall control system is considered. In particular, the phase-locked loop sy","authors_text":"Christian Dirscherl, Christoph M. Hackl, Korbinian Schechner","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.SY","submitted_at":"2017-03-25T07:45:46Z","title":"Modeling and control of modern wind turbine systems: An introduction"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1703.08661","kind":"arxiv","version":1},"verdict":{"created_at":null,"id":null,"model_set":{},"one_line_summary":"","pipeline_version":null,"pith_extraction_headline":"","strongest_claim":"","weakest_assumption":""}},"verdict_id":null}}],"author_attestations":[],"timestamp_anchors":[],"storage_attestations":[],"citation_signatures":[],"replication_records":[],"corrections":[],"mirror_hints":[],"record_created":{"event_id":"sha256:afb8a885ef872c1fe595704f0ce5f7251d0e5168c0ef062172ac564a0fceea91","target":"record","created_at":"2026-05-18T00:47:55Z","signer":{"key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signer_id":"pith.science","signer_type":"pith_registry"},"payload":{"attestation_state":"computed","canonical_record":{"metadata":{"abstract_canon_sha256":"682e8066733e6280dafff0fffa387c22ea1db78c9159af900845219a34a9f87b","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.SY","submitted_at":"2017-03-25T07:45:46Z","title_canon_sha256":"613691fae35407ef677a2fef4a34c71207d376ae4a46943938aba8c5930ed318"},"schema_version":"1.0","source":{"id":"1703.08661","kind":"arxiv","version":1}},"canonical_sha256":"98a20972e1eefb2975c855d247fc44145f5b33e0d8cfc0e571568f49de758feb","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"98a20972e1eefb2975c855d247fc44145f5b33e0d8cfc0e571568f49de758feb","first_computed_at":"2026-05-18T00:47:55.938660Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:47:55.938660Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"/GfL2DE583tDzj6G261rEFfEY+K8MfagBW0J+wFmg3majGo6xddR6WP0nK/pGdWS7g1Metl5gkKMKtth6+HYCA==","signature_status":"signed_v1","signed_at":"2026-05-18T00:47:55.939298Z","signed_message":"canonical_sha256_bytes"},"source_id":"1703.08661","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:afb8a885ef872c1fe595704f0ce5f7251d0e5168c0ef062172ac564a0fceea91","sha256:2ec90fa0865968521f111c3cc3ee31805f9153aa641e063d792c0c0fcc9162f7"],"state_sha256":"58bc869220301cb082f4c45ebc0ac52601b8bae3154ad12a0f45735fc316a8de"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"d2Ia5Lv1OqtTCg15YL0TblaMpnn4Tkj0PJQ8WsH1jHBTSf7s4SZ2rFvDHII0TzMEmSCR/JTYQlwRjHveAP+uCg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-07T12:58:57.839895Z","bundle_sha256":"ba4e715d57f03b33c4a81c2b57e0f5900f2e1fa6e0e78b469f053f431e7b278e"}}