Solar-storage-diesel complementary power supply system

Solar-storage-diesel complementary power supply system

1. ‌Architecture composition‌

• Photovoltaic power generation : Matching the high energy consumption of base stations during the day, converting electricity through solar panels to reduce dependence on city electricity4 .
• Energy storage unit : It uses lithium iron phosphate (LFP) battery pack (48V/24.48kWh typical configuration), with a cycle life of more than 6,000 times and supports a wide operating temperature range of -30 ℃ ~50 ℃ 15 .
• Diesel generator‌ : As a backup power source, it will automatically start 410 when it is cloudy for consecutive days or when the energy storage is insufficient .

Advantages‌ : Reduce electricity costs by more than 30% and ensure 24/7 uninterrupted power supply49 .

Case : Southeast Africa base stations adopted this solution and reduced annual power outage time to <2 hours4 .

2. Distributed energy storage architecture

 ‌Technical Features‌

• Energy storage batteries are deployed in multiple nodes of the tower, and single point failure does not affect the overall power supply6 .
• Equipped with intelligent gateways (such as Hongdian IoT Gateway), it integrates BMS, air conditioning, and photovoltaic equipment data to achieve remote strategy control7 .
• Function Optimization‌
• Peak shaving and valley filling‌ : Automatically implement peak and valley charging and discharging strategies for electricity prices, increasing daily utilization by 23.2% 27 .
• Grid support : Responds to grid fluctuations and switches to backup power mode within 0.2 seconds6 .
• Case : After a base station of a Zhejiang enterprise was connected to the AI microgrid system, the operation and maintenance cost was reduced by 12%, and the fault warning accuracy rate reached 95%+ 2 .

3. High protection outdoor energy storage cabinet

· ‌Military -grade safety design‌

• Structural protection‌ : IP55 protection level + V-0 fireproof shell + independent battery compartment, drop-resistant and shock-resistant (passed 10.2-ton extrusion test) 15 .
• Thermal management : Silicon carbide (SiC) inverter module (98.5% efficiency) + hurricane cooling duct, reducing heat by 20% 18 .
• Smart Management
• The EMS system supports remote monitoring, fault diagnosis and policy upgrades, and is suitable for unattended scenarios78 .

4‌. Key Technology Applications‌