{"actors":["Regional transmission operator planning and control-room teams","Protection engineers","Inverter-based resource owners and operators","Inverter and relay manufacturers","Synchronous-generator operators","Transmission asset owners","Electric reliability regulator or oversight body","Electricity customers whose service depends on grid stability"],"affected_objective":"Maintain stable, protectable electric service while deciding how and when a transmission area should move from synchronous-machine-dominant controls toward grid-forming inverter controls.","arm":"COMMON_P1","authority_safety":{"authorized_first_step":"The transmission operator's study lead may perform a read-only retrospective replay and offline simulation using approved historical disturbance records and validated network models; no operating settings or field equipment may be changed.","decision_authority":"The transmission operator's chief reliability officer owns gate decisions, subject to independent protection review and any required regulatory or asset-owner approval; resource owners may refuse tests outside their interconnection and safety envelopes.","excluded_actions":["Changing live inverter, relay, or remedial-action settings during the first evidence step","Reducing required reserves or protection coverage based only on simulation","Energizing uncommissioned grid-forming controls","Disabling existing disturbance recorders or overwriting source records","Crossing an irreversible commissioning gate without independent protection review"],"halt_rollback":"Any later field pilot must enter a held state and restore the last approved settings if oscillation damping, voltage recovery, relay selectivity, thermal limits, model-to-measurement residuals, or operator workload crosses a predeclared stop boundary; restoration must use preserved configurations, verified state reconciliation, and control-room authorization."},"baseline":"Treat inverter penetration mainly as a continuously increasing planning parameter, apply project-by-project interconnection and protection studies, add mitigations when limits are exceeded, and commission approved controls on scheduled milestones without a shared diagnosis of whether the area's governing stability and protection regime is drifting, approaching a threshold, or reorganizing.","candidate_id":"continuity_rupture_regime_diagnosis_and_transition_design__engineering_design__COMMON_P1","causal_chain":["Increasing inverter participation changes several coupled properties at different rates, including inertia, fault-current signatures, voltage control, oscillation damping, protection observability, and operator recovery options.","Monthly or system-wide summaries can appear continuous while millisecond disturbances, weak-grid locations, or particular protection zones exhibit discontinuous behavior.","A typed, multi-scale evidence ledger separates parameter drift from cumulative loading, threshold crossing, control-mode reorganization, model artifacts, and relabeling of otherwise unchanged control authority.","Threshold and return-path tests identify conditions under which removing the initiating disturbance would not restore the prior operating state or protection behavior.","The legacy map distinguishes functions that must persist—selective fault clearing, black-start capability, disturbance records, operator authority, and service obligations—from synchronous-machine-specific mechanisms that may be transformed or retired.","Comparing gradual tuning, bounded coexistence, zone-based staging, and decisive control-mode cutover against the diagnosed dynamics yields topology-specific transition gates rather than a penetration-only schedule.","Preserved configurations, reconciliation rules, independent challenge, and stop triggers constrain each reversible step and prevent a fallback from silently depending on the same failed mechanism.","Post-gate monitoring tests both operational performance and the original regime diagnosis, allowing the authority to pause, reverse, branch, or redesign the transition."],"cell_id":"continuity_rupture_regime_diagnosis_and_transition_design__engineering_design","consequence":"A false-continuity diagnosis could permit entry into a stability or protection regime for which existing controls and relays are unsuitable; a false-rupture diagnosis could prompt unnecessary asset retirement, coordination risk, or premature commitment to controls whose interfaces and recovery behavior remain uncertain.","diversity_from_prior_proposals":"Comparison with prior proposals is intentionally unknown under runtime isolation; within this candidate, the distinguishing focus is a topology-specific diagnosis of coupled control-and-protection regime change, followed by governed selection of transition tempo rather than a generic inverter rollout or isolated stability study.","experiment_id":"eoa_inverse_innovation_exp13_second_slot_policy60_20260806","intervention":"Create a Grid Control-Regime Transition Passport for one transmission area. It defines invariants and alternative chronologies; combines sub-cycle disturbance traces, operational trends, topology changes, model revisions, and operator accounts; classifies competing change mechanisms; tests threshold ranges, path dependence, and return behavior offline; maps legacy functions and dependencies; and compares gradual tuning, bounded parallel controls, zone-based staging, hybrid sequencing, and cutover. Each selected stage receives readiness evidence, one conflict authority, state-reconciliation rules, a coexistence sunset, preserved configurations, stop conditions, fallback, and post-stage audit triggers.","mechanism_mapping":[{"counterfactual_removal":"Without resolution comparison, stable seasonal or fleet averages could conceal sub-cycle oscillations, local weak-grid cliffs, or sampling artifacts, leaving the regime classification dependent on observation scale.","mechanism_slug":"multi_resolution_change_point_and_trend_comparison","role":"Compare sub-cycle, event, daily, seasonal, topology-specific, and fleet-level trajectories around candidate boundaries while annotating measurement and model changes."},{"counterfactual_removal":"Without process tracing, similar response curves could be attributed interchangeably to reduced synchronous strength, controller interaction, relay logic, topology, or instrumentation changes.","mechanism_slug":"process_tracing_and_mechanism_discrimination","role":"Trace disturbances through topology, control modes, current-limiting behavior, protection decisions, and recovery to discriminate rival causal mechanisms."},{"counterfactual_removal":"Without paired claims, advocates of either continued incremental tuning or immediate grid-forming conversion could select only supportive evidence.","mechanism_slug":"continuity_rupture_claim_matrix","role":"Pair every claim of persistent stability or protection behavior with break evidence and every claimed rupture with evidence of retained functions, stratified by location and asset class."},{"counterfactual_removal":"Without bounded threshold and return-path tests, a reversible-looking setting change could create controller commitments or operating states that cannot be unwound by simply restoring the initiating parameter.","mechanism_slug":"threshold_hysteresis_and_reversibility_probe","role":"Use offline perturbations and sensitivity sweeps to estimate threshold ranges, entry-versus-exit behavior, controller interaction, and the conditions required to return to an approved state."},{"counterfactual_removal":"Without rehearsal, coexistence may split control authority or produce relay and state divergence that becomes visible only during a live disturbance.","mechanism_slug":"parallel_transition_and_cutover_rehearsal","role":"Rehearse zone-based activation, conflict resolution, state reconciliation, loss of communications, fallback, and legacy-control sunset before any field gate."},{"counterfactual_removal":"Without an audit, nominal commissioning could be accepted while old control dependencies persist, protection coverage shifts, or local recovery burdens are displaced.","mechanism_slug":"post_transition_legacy_loss_and_regime_audit","role":"After each authorized stage, compare promised and observed invariants, unexpected continuities, local ruptures, model residuals, recovery behavior, and remaining legacy dependencies."}],"nearest_rivals":["Conventional inverter hosting-capacity study: estimates feasible connection levels but need not diagnose mixed continuity and rupture across control, protection, and recovery functions or choose transition tempo.","Protection-coordination study: evaluates relay selectivity and fault behavior but may hold the broader control regime and chronology fixed.","Grid dynamic digital twin: supplies simulation capability but does not by itself define affected invariants, legacy treatments, authority, cutover gates, or revision rules.","Standard staged commissioning plan: coordinates an already-selected destination and sequence rather than testing whether gradual, hybrid, parallel, or abrupt movement matches the causal regime.","Penetration cap with case-by-case exceptions: limits exposure through a scalar boundary but may not represent topology-specific thresholds, hysteresis, or interacting fast and slow variables."],"negative_tests":{"intervention_falsifier":"On preregistered holdout disturbances and contingencies, the passport's mechanism labels and topology-specific gates fail to distinguish cases requiring different transition treatment, or a conventional planning-and-protection workflow produces equally actionable gate, fallback, and legacy decisions from the same evidence.","problem_falsifier":"Across consistent historical traces, topology-stratified analyses, and offline perturbations, relevant stability, protection, and recovery properties respond approximately smoothly; conclusions remain stable across observation scales and asset groups; return paths match entry paths; and the existing control logic remains valid throughout the contemplated range.","risks":["Simulation models may omit proprietary controller behavior or misrepresent current limiting.","Sparse disturbance records may fabricate or hide apparent change points.","A bounded offline probe may not expose a threshold that requires fleet-scale interaction.","Announcing a candidate threshold could alter interconnection, investment, or operating behavior.","Parallel controls could create ambiguous authority, inconsistent state, or protection interactions.","Rollback may restore technical settings without restoring operator understanding or asset availability.","Incumbents could influence boundary definitions or evidence gates to delay or accelerate transition.","Additional instrumentation and model exchange could expose security-sensitive grid information."] ,"strongest_counterevidence":"Existing interconnection, electromagnetic-transient, protection, and commissioning processes may already integrate multi-timescale threshold analysis, staged activation, rollback, and independent review sufficiently that the passport adds documentation without changing decisions."},"next_evidence_step":"For one transmission area, preregister invariants, rival mechanisms, candidate boundaries, and falsification rules; then analyze a bounded set of twelve archived disturbances spanning at least three materially different topology or resource-mix conditions and run offline perturbation sweeps on the corresponding validated models. Hold out four events from classifier construction, prohibit live changes, and end with an independent review of whether the resulting mechanism classifications would have changed any transition gate relative to the baseline workflow.","observable_state":"Time-aligned phasor and waveform measurements, frequency and rate-of-change, voltage recovery, oscillation modes and damping, inverter current limiting and control-mode flags, relay pickup and trip sequences, breaker states, topology and resource mix, reserve and fault-level estimates, restoration time, operator interventions, model versions and residuals, missing-data intervals, and location- or asset-class-specific departures from aggregate behavior.","prior_art_status":"UNSEARCHED","problem":"Transmission engineers deciding how to introduce grid-forming inverter controls may observe a smooth rise in inverter-based generation at fleet scale while local fault behavior, oscillatory stability, restoration capability, and protection selectivity approach topology-dependent thresholds. The planning question is therefore not merely how to commission predetermined equipment, but whether the area's governing control regime is drifting, crossing a threshold, or reorganizing—and which functions can coexist safely during transition.","proposal_index":1,"remaining_contrastive_claim":"The candidate is contrastive only if diagnosing scale-dependent control-and-protection mechanisms changes the justified transition regime, gate, or legacy treatment compared with penetration-based planning plus ordinary commissioning; a richer dashboard alone does not satisfy the claim.","revision_record":{"claim_changes":["Initial version makes no claim of novelty, prevalence, demand, or effect magnitude.","The central claim is framed as a falsifiable difference in transition decisions rather than an asserted reliability improvement."],"conceptual_changes":["Initial domain transfer decomposes inverter transition into coupled stability, protection, recovery, authority, and record-continuity properties.","Initial design treats gradual fleet change and local control rupture as potentially simultaneous rather than assigning one label to the grid."],"evidence_changes":["No external evidence or prior-art search was used.","Initial evidence plan includes holdout events, scale sensitivity, missingness annotations, rival mechanisms, and explicit problem and intervention falsifiers."],"operational_changes":["The first step is limited to archived records and offline models.","Live setting changes, relaxed reserves, and unreviewed irreversible gates are explicitly excluded."],"parent_version":null,"progress_targets_addressed":["Concrete engineering problem and actors","Observable state and consequence","Causally matched intervention","Structural and mechanism mappings","Baseline, rivals, and contrastive claim","Authority, safeguards, falsifiers, and risks","Bounded first evidence step"]},"schema_version":1,"structural_mapping":[{"archetype_element":"Change Object, Property, and Invariant Frame","domain_realization":"The object is one transmission area's coupled control-and-protection regime; properties include stability, fault observability, voltage support, restoration, and decision authority; candidate invariants include selective clearing, bounded voltage and frequency recovery, preserved disturbance records, and accountable operator control."},{"archetype_element":"Multi-Scale Timeline and Boundary Set","domain_realization":"Align sub-cycle waveforms, event sequences, daily operating states, seasonal resource mixes, equipment commissioning dates, topology changes, and model revisions; compare penetration, topology, controller activation, and disturbance dates as alternative boundaries."},{"archetype_element":"Change-Mechanism and Regime Classifier","domain_realization":"Classify observed changes as smooth strength reduction, cumulative controller interaction, topology-dependent threshold crossing, disturbance shock, endogenous control reorganization, equipment replacement, measurement change, or nominal relabeling of unchanged authority."},{"archetype_element":"Continuity–Rupture Evidence Ledger","domain_realization":"Record paired persistence and break evidence for each invariant, with source provenance, resolution, uncertainty, missingness, model version, location, asset class, and operator interpretation."},{"archetype_element":"Threshold, Path-Dependence, and Reversibility Profile","domain_realization":"Estimate threshold ranges for damping, voltage recovery, current limiting, and relay selectivity; compare entry and exit paths; identify controller commitments, topology dependencies, unavailable synchronous capacity, and other conditions that constrain return."},{"archetype_element":"Affected-Party, Legacy, and Loss Map","domain_realization":"Assign preservation, transformation, archiving, or retirement treatment to protection functions, black-start capability, synchronous services, operating procedures, settings, disturbance records, vendor knowledge, interconnection obligations, and customer service duties."},{"archetype_element":"Transition-Regime, Safeguard, and Cutover Plan","domain_realization":"Compare gradual tuning, bounded parallel operation, zone-based stages, hybrid sequencing, and cutover; attach readiness evidence, conflict authority, reconciliation, stop boundaries, fallback, support, and a sunset condition to each approved stage."},{"archetype_element":"Regime Monitor, Recovery, and Revision Loop","domain_realization":"Monitor leading stability and protection indicators, distribution across zones and asset classes, model residuals, legacy dependency, recovery performance, and dissenting evidence, with triggers to pause, reverse, branch, or redesign."}],"title":"Grid Control-Regime Transition Passport for Inverter-Dominant Transmission Areas","version":0}