Smart Low-Voltage Power Distribution Networking Solution¶

I. Solution Overview¶

1.1 Project Background¶

An electrical enterprise focuses on the R&D and manufacturing of low-voltage power distribution equipment, providing customers with comprehensive smart low-voltage power distribution solutions. With the advancement of smart grids and digital transformation, the demand for intelligent and networked low-voltage power distribution systems is growing.

1.2 Construction Objectives¶

Achieve intelligent management of low-voltage power distribution systems
Real-time monitoring of power distribution equipment operational status
Enhance safety and reliability of power distribution systems
Reduce operation and maintenance costs, achieve remote monitoring

1.3 Applicable Scenarios¶

Smart power distribution systems
Low-voltage switchgear monitoring
Unattended distribution rooms
Smart building power distribution

II. Requirements Analysis¶

2.1 Current Equipment Status¶

Equipment types: Smart circuit breakers, power distribution meters, residual current devices, etc.
Communication interfaces: Ethernet, RS485, 4G
Communication protocols: Modbus, MQTT, etc.
Deployment environment: Distribution rooms, switchgear cabinets
Scale: Distributed deployment

2.2 Core Requirements¶

Real-time monitoring requirement: Real-time monitoring of electrical parameters such as voltage, current, and power
Safety protection requirement: Leakage protection, overload protection, short-circuit protection
Remote management requirement: Remote monitoring and control of power distribution equipment
Fault early warning requirement: Abnormal alarms to detect potential problems in advance
Energy management requirement: Electric energy metering and energy consumption analysis

III. Overall Architecture Design¶

This solution adopts an architecture of smart power distribution equipment + edge gateway + cloud platform to achieve intelligent management of low-voltage power distribution systems.

3.1 Four-Layer Architecture¶

Topology Diagram

Perception Layer: On-site equipment such as smart circuit breakers, power distribution meters, sensors
Network Layer: Edge gateway, supporting multi-protocol access and data transmission
Platform Layer: Power distribution management platform, data storage and analysis
Application Layer: Monitoring large screen, mobile app, operation and maintenance management

3.2 Data Flow¶

On-site equipment → Edge gateway → Cloud platform → Application end

IV. Network and Access Solution¶

4.1 Networking Method Selection¶

Supports multiple access methods including wired Ethernet, 4G/5G wireless, etc.

4.2 Edge Gateway Selection Points¶

Supports multiple industrial protocol access
Supports common protocols for power distribution equipment such as Modbus
Supports local data preprocessing
Industrial-grade design, adaptable to distribution room environment

V. Protocol and Data Acquisition Solution¶

5.1 Supported Protocols¶

Industrial protocols: Modbus RTU/TCP, DLT645
IoT protocols: MQTT
Network protocols: Ethernet, 4G/5G

5.2 Northbound Protocol Support¶

Supports cloud platform access
Supports standard API interfaces

VI. Solution Highlights Summary¶

Intelligent power distribution: Achieve intelligent management of low-voltage power distribution systems
Real-time monitoring: Real-time monitoring of electrical parameters and equipment status
Safety protection: Comprehensive leakage, overload, and short-circuit protection functions
Remote operation and maintenance: Remote monitoring and control, reducing maintenance costs
Energy analysis: Electric energy metering and energy consumption analysis to optimize electricity usage