BLUE OCEAN APPLICATION

Power Grid × CIM Intelligent Integration

FFI8805 built-in CIM Array combined with FPGA Gateway and power electronics core for millisecond-level intelligent anomaly detection and state estimation

This integration brings CIM AI computing to the power grid edge, achieving millisecond-level intelligent anomaly detection and state estimation without compromising hard real-time protection safety.
LAYERED ARCHITECTURE

Power System Control & Protection Layered Architecture

Core design principles: Clear layering, technology complementarity, safety first — Click each layer to expand details

Quasi Real-Time Layer

> 20 ms

Station SCADA/EMS + CPU asset health & trend analysis

Model publishing, monitoring telemetry & MMS reporting, non-hard real-time

Fast Real-Time Layer

0.5–10 ms

CIM accelerator for fault identification / state estimation (Batch=1, low latency)

Outputs advice/score/estimation without direct trip action. Weights resident on chip (Model-in-Chip)

Hard Real-Time Layer

μs–數十 μs

Power electronics core PWM/closed-loop control + FPGA/IED fast trip/safety gate

μs-level closed-loop control, OC/OV/short-circuit hardware protection, gate drive & fast shutdown

COMPONENT ROLES

Component Functions & Role Positioning

CIM Module

The 'Fast Real-Time Layer' in power system control protection, executing efficient inference within 0.5–10 ms cycles

PrecisionBF16/FP16
Inference LatencyWCET ≤ 100 μs
End-to-End Latency≤ 300 μs
Memory ArchitectureModel-in-Chip (Cache-less)
InterconnectCXL/PCIe Gen5
I/O: x[FEATURE_DIM] → CIM Core → y_score / ood_score / confidence

FFI8805 (FPGA Gateway)

Edge inference module integrating CIM Array, bridging power electronics high-speed I/O with upper control systems

FFI8805 Mini288KB CIM Array (1152×256 bits)
FFI8805 Pro576KB CIM Array (1152×256 bits)
ProtocolIEC 61850 SV/GOOSE
SyncPTP (IEEE 1588)
Hard real-time: μs-level power control loop
Protocol hub: IEC 61850 ↔ CXL/PCIe
Safety gate: fusing CIM inference with traditional protection

Power Electronics Core

Handles μs-level voltage/current sampling and PWM generation, triggers hardware protection on severe faults

Measurement & Control

  • High-freq ADC/Sensor/Isolator
  • PWM modulation, FOC/PR/PI control

Fast Hardware Protection

  • OC/OV/Short-circuit μs protection
  • Gate drive & fast shutdown
TECHNICAL CHALLENGES

Technical Challenges & Solutions Matrix

Latency & Jitter

KPI: WCET ≤ 100 μs
Impact

End-to-end latency exceeding control period causes closed-loop failure

Solution

Cache-less/TCM architecture eliminates cache miss; LOW_JITTER_MODE fixed scheduling

Communication & Sync

KPI: Unsync ≤ 1e-6
Impact

SV packet jitter/loss, timestamp deviation affects phasor measurement

Solution

IEEE 1588 PTP hardware timestamping; PRP/HSR network redundancy & Quality Flags

Power & Thermal

KPI: Op Temp ≤ 85°C
Impact

Overheating in sealed enclosures causes throttling or thermal shutdown

Solution

10–30W TDP optimized design; S1–S4 degradation state machine active throttling

Memory Coherence

KPI: Zero Data Corruption
Impact

High data transfer latency or data races between FPGA and CIM

Solution

CXL shared memory (Zero-Copy); Ring Buffer with explicit Memory Barrier

Safety & Single Point Failure

KPI: SIL-2 Compliant
Impact

AI model misjudgment or hardware failure causes protection malfunction

Solution

FPGA safety gate final arbitration; WDT/ECC/model signature verification

APPLICATION SCENARIOS

Application Examples & Deployment Scenarios

Substation Fast Anomaly Detection

0.5–5 ms
  • High-impedance & arc fault early detection
  • CT saturation & waveform distortion identification
  • Safety gate aligned with traditional protection logic
OUTPUT: fault_type, confidence, ood_score

Distribution Fast State Estimation

1–10 ms
  • Distribution feeder topology consistency check
  • Switch state error & communication anomaly detection
  • FLISR automated fault isolation support
OUTPUT: estimated_state[N], topology_error

Power Quality Monitoring

1–20 ms
  • Harmonic & interharmonic energy real-time estimation
  • Transient event detection & source identification
  • Edge data summarization to reduce central load
OUTPUT: thd_score, transient_event_id

Power Electronics Device Application

μs–5 ms
  • Inverter/Charger/PCS intelligent diagnostics
  • CIM fast event classification & early warning
  • FPGA maintains μs-level hard real-time control loop
OUTPUT: device_health, predictive_alert
KEY BENEFITS

System Integration Benefits

Deterministic Low Latency

Batch-1 architecture with Model-in-Chip design meets 1–10 ms fast real-time requirements, eliminating cache jitter

High Reliability & Safety

Degradation state machine, WDT/ECC/CRC protection with quality flags & OOD detection to prevent malfunction

Easy Integration & Expansion

CXL/PCIe standard interface + Ring Buffer protocol, MMIO/IRQ compatible with existing station/IED systems

Outstanding Energy Efficiency

10–30W CIM power design, suitable for passive cooling in substations or roadside cabinets

FAQ

Frequently Asked Questions

Here are the most frequently asked technical questions about FFI8805 in power system applications

FUTURE OUTLOOK

Future Development Directions

UCIe/Chiplet Package Integration

Driving heterogeneous packaging of FPGA and CIM to further reduce interconnect latency and power

Model Lifecycle Automation

Complete MLOps pipeline with model signature verification, canary deployment & auto-rollback

Edge Summary & Cross-Station Defense

Extending to PMU/WAMS edge event summary for asset health assessment & wide-area cross-station defense

Ready to Bring CIM to Your Power System?

Contact our technical team to learn how FFI8805 can provide millisecond-level intelligent inference for your substations, distribution networks, or power electronics

Contact Technical TeamView Product Specs