浏览器 → Streamlit (main.py, :8501) ──HTTP──→ FastAPI (server.py, :8000) → FMUClient (fmpy) → SystemForFMI.fmu ↓ BatteryDigitalTwin ├── AgingModel (NREL 半经验模型) ├── BatteryPhysicsLibrary └── AI 补偿器 ...