Power System Diagnostics
Power System Fault Diagnosis and Prognostics Engine
The Power System Fault Diagnosis and Prognostics Engine is an analytical subsystem that monitors power generation infrastructure, identifies operational faults, and estimates remaining useful life to enable predictive maintenance. Operating via model-based physics comparisons and waveform signature analysis, the system isolates electrical anomalies down to individual replaceable units. Diagnostic execution is complicated by the lunar environment, where novel component degradation modes diverge from terrestrial baseline models. To maintain reliability, the engine must distinguish between sensor failures and true power system faults, progressively refining its diagnostic accuracy through operational data while interfacing directly with robotic maintenance systems to direct autonomous component replacement.
Diagnostic system identifying power system faults and predicting remaining useful life
Purpose
Detect, diagnose, and predict power system failures to enable proactive maintenance
Context
Child of L2-PWR-MGMT within the Lunar Ark power generation system
Principles
- ▸Model-based diagnosis compares actual behavior to physics models of power system components
- ▸Signature analysis identifies fault types from current/voltage waveform anomalies
- ▸Remaining useful life (RUL) estimation enables predictive maintenance scheduling
- ▸Fault isolation narrows problem to specific replaceable unit for robotic maintenance
Typical implementations
- ▸NASA Prognostics Center of Excellence battery and power system PHM
- ▸GE Aviation engine diagnostic systems (adapted concept for power systems)
- ▸Emerson Plantweb digital ecosystem for industrial power diagnostics
Lunar considerations
- ▸Novel degradation modes in lunar environment may not match Earth-based models
- ▸Must distinguish between sensor faults and actual power system faults
- ▸Diagnostic accuracy improves over time as operational data accumulates
- ▸Must interface with robotic maintenance system for autonomous fault correction
Specifications
Functional
| primary function | Diagnostic system identifying power system faults and predicting remaining useful life |
Interfaces
Provides
- Power system fault reports and RUL predictions for maintenance scheduling
Requires
- Power system telemetry for fault signature analysis
Cite this entry
Lunar Ark Codex. "Power System Diagnostics" (L3-PWR-MGMT-DIAG). Retrieved 10 September 2026, from https://lunarark.com/entry/L3-PWR-MGMT-DIAG
Licensed CC-BY-SA 4.0. You may reuse and adapt this entry with attribution, under the same licence.