Photovoltaic Prefabricated Cabin Substation

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Product Introduction

The photovoltaic prefabricated cabin substation is a modular power facility that integrates photovoltaic power generation systems, substation equipment and intelligent control systems. It has the characteristics of rapid deployment, flexible configuration, high efficiency and energy saving, and is widely used in photovoltaic power stations, distributed energy and grid access scenarios. The following is a detailed analysis of its core elements:

1. Basic Concepts

Definition:

The photovoltaic prefabricated cabin substation integrates photovoltaic inverters, step-up transformers, power distribution devices, monitoring systems and other equipment in a standardized cabin prefabricated in the factory to achieve an integrated solution for photovoltaic power generation, voltage conversion and power distribution.

Features:

◆modular design, plug-and-play, reduced on-site construction, and adaptable to harsh environments.

◆The prefabricated cabin is rust-proofed, sandblasted, and zinc-sprayed with heavy-duty anti-corrosion paint specially used for containers, with a service life of 20 years.

◆The prefabricated cabin adopts a container-shaped structure to ensure its mechanical strength, rigidity, load-bearing and other requirements.

◆The roof adopts a herringbone slope, and the slope is generally not less than 5° to prevent rain and snow accumulation. The roof slope should be appropriately increased in cold areas to prevent snow accumulation.

◆Prefabricated cabins generally use rock wool purification boards and polyurethane insulation. The fire resistance level can reach Class A or Class B1, with heat insulation, heat preservation, and fire prevention, meeting the needs of prefabricated cabins in substations in various places.

◆The prefabricated cabin is sealed and waterproof, and is waterproof and rust-proof. The overall protection level of the cabin reaches IP54. The prefabricated cabin door openings are equipped with waterproof sealing strips made of EPDM strips, and the joints of the two cabins are sealed with special silicone rubber sealing strips. The air inlet and the fan outlet are equipped with special shutters or air ducts, and a special dust filter is installed inside to meet the requirements.

◆Internal HVAC design, configure air conditioning fans according to actual needs, realize intelligent temperature control, and realize cooling, heating, and dehumidification functions.

◆The security, fire protection, and lighting equipment designed in the cabin meet the requirements of the prefabricated cabin.

◆The grounding setting of the prefabricated cabin, the internal grounding is connected to the external prefabricated cabin grounding, and is connected to the pre-buried grounding of the foundation, which meets the grounding requirements of the prefabricated substation.

2. Core components

Photovoltaic power generation unit: The solar cell array is connected to the cabin through a DC junction box.

Inverter system: Converts direct current (DC) to alternating current (AC), commonly used string or centralized inverters.

Boosting system: Transformer (such as 35kV/110kV) increases voltage to reduce transmission losses.

Power distribution system: includes high-voltage switchgear, low-voltage distribution cabinet, protection device, etc.

Intelligent control system: integrated SCADA, environmental monitoring (temperature and humidity/fire protection), remote operation and maintenance functions.

Auxiliary facilities: air conditioning, lighting, fire protection, security, etc.

3. Typical application scenarios

Large-scale ground photovoltaic power station: as a booster station, replacing traditional civil substations.

Distributed photovoltaic: a compact access solution for industrial and commercial rooftops and agricultural photovoltaic complementary projects.

Microgrid/energy storage system: cooperate with energy storage equipment to achieve off-grid or grid-connected operation.

Temporary power supply: rapid deployment of disaster emergency and temporary project power supply.

4. Technical advantages

Quick deployment: prefabrication in the factory shortens the construction period by more than 50%, and only basic construction and hoisting are required on site.

Cost optimization: reduce civil engineering and labor costs, and centralize operation and maintenance to reduce long-term costs.

High reliability: the cabin protection level reaches IP54 or above, and can adapt to -40℃~+60℃ environment.

Intelligent operation and maintenance: support IoT remote monitoring, and improve fault diagnosis efficiency.

5.Summary

The photovoltaic prefabricated cabin substation has become a key infrastructure in the photovoltaic field through high integration and intelligence, and is particularly suitable for the diversified application scenarios of "photovoltaic +". In the future, with the iteration of technology, its compatibility and efficiency will be further improved, promoting the efficient consumption of renewable energy.

6.Contact Us

If you have further requirements or cooperation intentions for photovoltaic prefabricated cabin substations, you can contact us through the following methods, and we will provide you with professional technical support, solution customization and business services:

📧 Email: pannie@hdswitchgear.com.
📞 Phone: +8618789455087