Hybrid Energy DC Power System for Uninterrupted Power Supply of Telecom Site and Repeater Site

Hybrid Energy Power System for Uninterrupted Power Supply of Telecom Site and Repeater Site

1. Introduction of Hybrid Energy Power System

ESTEL Hybrid Energy Power System is a highly integrated hybrid solution for uninterrupted power supply at various application sites for critical applications.

It is a comprehensive system that integrates multiple energy sources - Green Solar Energy, Grid Power, Diesel Generator, Backup Batteries, then it converters energy into high-quality and stable power input for various applications, which mainly include -48VDC telecom applications, 24VDC and 12VDC for electronic devices, and 220VAC for maintenance purpose.

This system utilized smart controller for energy priority management, it is a perfect solution for project sites with no grid power or unstable grid power, also suitable for projects with high requirement energy efficiency.

2. Applications of Hybrid Energy Power System

1) 4G and wireless telecom base station

2) Repeater Site

3) Emergency communication

4) Rural network coverage

3. Structure of Hybrid Energy Power System

4. Structure of Hybrid Energy Power System

Hybrid Energy Power System mainly consists of:

1) An outdoor telecom cabinet with cooling system

2) A hybrid telecom power system

3) Power distribution units

4) Inverter

5) DC-to-DC Converter (48V to 12V/20A & 24V/20A)

6) Solar panel array

7) Generator system

8) Lithium batteries

9) Environment monitoring system

10) Remote monitoring software platform

5. Features of Hybrid Energy Power System

1) Features of Outdoor Telecom Cabinet with Cooling System

ESTEL model ET8575230-46U is an outdoor power cabinet designed for harsh outdoor environment, it protect customer’s equipment from damage and extreme weather conditions. 42U telecom equipment can be accommodated inside the cabinet.

ESTEL outdoor cabinets are customizable, and are widely used in telecom operators’ mobile telecommunication sites, outdoor small shelters, road and railway control stations, etc.

Main Features:

• High protection grade: IP55;
• Installed with highly efficient cooling unit (Options: Forced fans, Air conditioner, Heat exchanger);
• Strong anti-theft ability, embedded door, inner hinges, three-point lock, supporting additional padlock;
• Installed with door sensor, smoke sensor, water sensor, temperature and humidity sensor, etc.

2) Features of Hybrid Telecom Power System

ESTEL rectifier and solar hybrid telecom power system integrates AC mains power, photovoltaic new energy, generator, and battery energy storage. It converts high-voltage DC solar power, AC mains power (and generator output) into high-quality -48VDC power, for supplying power to DC loads, and charging batteries, realizing autonomous operation.

This power system supports SNMP based communication, and supports northbound and southbound communication and remote management, through either ESTEL software management platform or client’s centralized management platform.

ESTEL telecom power system also integrates functions of AC and DC power distribution, and battery management.

Below is the structure of 12kW Solar & 16kW Rectifier Telecom Power System:

3) Features Power Distribution Units

ESTEL provides customized AC power distribution and DC power distribution solutions, providing clients with high-quality systems with high space utilization rate.

ESTEL also provides smart power distribution units, which supports remote and smart management of each load branches, realizing convenient remote electricity consumption management. And provide compact power distribution units with more compact size.

4) Features of Environment Monitoring System and & Remote Monitoring Software Platform

The hybrid energy power system is equipped with a Field Supervision Unit (FSU), it provides rich interfaces for various kinds of smart Modbus devices and environment monitoring sensors, and supports SNMP based communication, enabling remote unattended monitoring and inspection.

By using ESTEL remote monitoring software, customer can realizes single-click management of hundreds project sites.

5) Other Features

High quality solar panel array with perfect connection with the hybrid telecom power system, realizing maximum utilization of green solar energy. Customers can save the trouble to do solar panel calculation and solar panel installation research. ESTEL provide a full functioned and ready to install solar panel array and steel structure.

(1) Solar Panel Array Features:

- Mono half-cut double glass module;

- Pmax=580W, 24pcs panels, total 13.92kW;

- Ready to install supporting metal structure;

- Provided with connection instructions and accessories;

By providing high quality and BMS integrated lithium batteries, the hybrid energy power system realizes autonomy operation of the repeaters and telecom equipment. ESTEL provide a battery solution for customers based on customers’ load equipment parameters and backup time requirements.

(2) Battery Specification Features:

- LiFePO4, 200Ah/48VDC, 4pcs, total 800Ah;

- BMS included; GPS tracking and gyroscope anti-theft function is optional;

- 6000 cycles;

(3) Diesel Generator Features:

Diesel generator and fuel tank are included in the system, ESTEL performs connection and commissioning at factory, and delivery ready-to-use systems to customers’ project sites, saving customer site project deployment time.

- 10kW, 230VAC, Single-phase Two-wires, 50A;

- Size: 1800*740*1200mm; 850kg;

- With 800L fuel tank;

6. How to Customize your Hybrid Energy Power System

As an on-stop solution and system provider, ESTEL provides pre-sales consultation, contract stage design and approval submission, high-quality control production, and before-delivery approval submission, providing customers with a transparent, efficient, and guaranteed system design and product delivery.