Charging Station O&M Solution: Building an Intelligent & Proactive Operations Ecosystem

Ⅰ. Overall Operation and Maintenance (O&M) Architecture Design

Charging station O&M needs to integrate a dual-engine model of "Predictive Maintenance + Intelligent Response," establishing a three-tier management system:

1. IoT Sensing Layer: Deploy current/voltage/temperature/humidity sensors to collect real-time equipment status (e.g., charging pile power module, cable wear).

2. Cloud Platform Layer: Integrate a central management system for data monitoring, fault diagnosis, and energy dispatch, supporting remote upgrades and strategy deployment.

3. Field Execution Layer:Achieving "Platform Alert - Personnel Response - Repair Closure."

Table: O&M System Modules and Functions

II. Core O&M Functional Modules

1. Full Lifecycle Equipment Management

• Standardized Daily Inspection:

• Hardware: Daily checks on plug lifespan (>100,000 cycles), cable wear; Monthly testing of grounding resistance value (≤4Ω).

• Software: Verification of communication protocols (CAN bus/RS485), payment system compatibility.

• Preventive Maintenance Strategy:

• High-load piles (e.g., 120kW DC piles): Quarterly cleaning of cooling fans, replacement of thermal paste.

• Low-load piles (e.g., 7kW AC piles): Biannual calibration of energy metering accuracy.

2. Rapid Fault Response Mechanism

• Tiered Alarm System:

• Tier 1 Fault (e.g., short circuit fire): Automatic power cut-off, simultaneous notification to fire system and O&M personnel.

• Tier 2 Fault (e.g., communication failure): Backup network channel activation, remote device reboot.

• Modular Replacement Design: Power units, billing control units support hot-swapping, reducing repair time to within 30 minutes.

3. Energy Efficiency Optimization and Cost Control

• Dynamic Energy Management:

• Off-peak Charging: Utilize low electricity price periods (23:00-7:00) to pre-store energy in the station's energy storage system.

• PV Integration: Roof-top solar panels supplement power supply, reducing grid dependence (Reference case: Integrated PV-storage-charging station reduces electricity costs by 40%).

• Resource Utilization Enhancement:

• Based on user behavior analysis (e.g., peak demand at noon): Guide users to idle piles.

• Time-of-Use Pricing: 20% premium during peak hours to balance load.

III. Intelligent Technology Support System

1. Data-Driven Decision Making

• Establish equipment health assessment models to predict component lifespan (e.g., capacitor degradation cycle ~3 years) using historical fault data.

• User profiling analysis: Identify high-frequency users (e.g., ride-hailing drivers), providing dedicated reservation channels.

2. Dual-Layer Safety Protection

• Physical Safety: Ingress protection rating (IP54 for outdoor piles), lightning protection devices (10kA discharge capacity).

• Cybersecurity: Encrypted data transmission (AES-256), blockchain technology to prevent tampering with charging records.

Table: O&M KPI System

IV. Sustainable O&M Ecosystem Construction

• Personnel Training System:

• Certified O&M Engineer courses (including high-voltage operation, BMS protocol analysis, etc.).

• Business Model Innovation:

• Advertising space leasing (charging screen display ads), parking space sharing (open for parking during idle times).

• Government subsidy linkage: Apply for carbon credit subsidies and new infrastructure special funds.

V. Implementation Roadmap

1. Pilot Phase (Months 1-3): Deploy intelligent monitoring systems at 10 stations, establish baseline data.

2. Promotion Phase (Months 4-6): Expand predictive maintenance modules, integrate with regional grid dispatch.

3. Optimization Phase (Months 7-12): Implement integrated PV-storage-charging solutions, achieving a 25% improvement in comprehensive energy efficiency.