Solar Control Communication Cabinet

As a professional factory, Ruitai can offer advanced solar control communication cabinets that handle centralized scheduling, data collection, algorithm execution, and command delivery, helping PV power plants move from passive O&M to proactive intelligent management.

As the "smart brain" of the tracking system, this NCU uses intelligent sensing and automatic execution to provide all-round protection against extreme weather and help keep power plant assets safe in harsh environments.

Core Functions

1. Device Communication and Centralized Control

The Solar Control Communication Cabinet (NCU) sends accurate commands to multiple TCUs within its control range through an efficient polling mechanism.

This enables centralized control of PV tracking brackets, including angle calibration, sun-tracking mode switching, tracking stop, and flat-position return for O&M.

At the same time, the NCU records complete communication messages between the devices and the platform, providing reliable data support for protocol debugging and troubleshooting communication issues.

2. Full Data Collection and Cloud Connection

As a data collection node, the NCU collects real-time operating data from all devices within its management range, including trackers, communication boxes, and environmental monitoring devices.

Key data includes actual angle, wind speed, irradiance, temperature, and humidity, which is then seamlessly uploaded to the intelligent O&M platform.

3. Intelligent Algorithm Execution and Firmware Upgrade

The NCU can work as the execution node for intelligent tracking algorithms. Based on real-time conditions such as sunlight and weather, it dynamically adjusts the tracker angle to achieve maximum power generation.

It can also poll and receive missing file information returned by the TCUs, ensuring all terminal devices complete firmware updates efficiently and without omissions, greatly reducing manual O&M costs.

4. Accurate System Commissioning

During power plant installation, the NCU can send commands to each TCU. By comparing the issued angle with the actual rotation angle, it quickly builds an accurate connection between each TCU and the PV array, greatly improving the efficiency and accuracy of on-site commissioning.

Full Specifications Table

▷ Characteristic parameters

▷ Functional parameters

▷ General parameters

How Do Solar Control Communication Cabinets Withstand Extreme Weather?

The Solar Control Communication Cabinet deeply integrates AI and big data technology to protect power plant assets while maximizing power generation returns.

1. Intelligent Algorithm-Based Decision-Making

Ruitai's NCU is equipped with advanced intelligent algorithms, which can learn and optimize based on real-time weather data, terrain shading, and bifacial irradiance models.

2. Environmental Triggers and Automatic Recovery

When wind speed, snow depth, or other parameters exceed the safety threshold, the NCU gives priority to alarm handling and moves the tracker to the safest position.

The system also includes an automatic recovery mechanism, allowing the tracker to return to normal operation when conditions improve.

3. Multi-Level Snow Protection and Snow Removal Coordination

Snow protection is not based on a single fixed value. Instead, the system uses a multi-level protection strategy with different snow depth and duration thresholds.

The protection angle is triggered only when the monitoring data meets the required conditions. Advanced systems can also use snow sensors to distinguish between dry and wet snow and apply different protection strategies.

With Which Equipment Is the Solar Control Communication Cabinet Used?

In a PV tracking system, the NCU usually works with multiple TCUs. One NCU can manage one or more PV sub-arrays.

At the upper level, it can connect to an intelligent PV controller, smart communication stick, or directly to the SCADA system, supporting smooth data upload and command delivery.

FAQ

Q: What role does the communication cabinet (NCU Cabinet) play in the PV tracking and cleaning system?

A: It serves as a critical link connecting the upper-level control system with the field devices. Cleaning or stowage commands issued by the SCADA system are first sent to the communication cabinet; the cabinet then wirelessly broadcasts these commands in batches to dozens of TCUs (Tracker Control Units) and PV cleaning robots, enabling coordinated, automated operations within the zone.

Q: Can the system still operate safely if the fiber-optic connection between the communication cabinet and the main control room is severed?

A: Yes. A qualified solar control communication cabinet features edge computing and offline protection capabilities.

Upon detecting a loss of communication with the SCADA host, it can independently direct the tracking structures and robots in its zone to move to safe, protective positions based on data from locally connected anemometers or weather stations.