Old solar power plant gets new life with smart upgrade

  • June 4, 2024
  • Michael Nadeau

One of the oldest photovoltaic power plants in China recently received an upgrade that increased its efficiency. The Shandong province plant was experiencing bottlenecks due to its age, creating operational and maintenance issues.

To address the problem, the plant operator chose to install TrinaTracker’s Smart Control System from Trinasolar to replace the outdated electronic control unit. The upgrade consisted of implementing TrinaTracker’s tracker control units (TCUs) and network control units (NCUs) to help resolve communications barriers and improve the security defense mechanism.

TrinaTracker’s “stow strategy” automatically activates when high winds strike, adjusting the tracker based on real-time meteorological data to mitigate risks posed by poor weather. The TCU identifies motor overloads and triggers the stow program, preventing structural damage caused by overcurrent and ensuring long-term stability and safety.

To optimize power generation, TrinaTracker integrated its SuperTrack smart algorithms, equipped with the Smart Backtracking Algorithm (SBA) and Smart Tracking Algorithm (STA), to help ensure that the solar arrays are in their most efficient position. SBA uses a patented mini-shading model to construct a 3D map using terrain data, enabling self-learning and self-optimization for real-time sensing of parameters and maximizing tracker advantages. The STA relies on the Bifacial Irradiance Model to determine the optimal tracker angle for cloudy and rainy conditions, minimizing rotation and extending operational hours.

The incorporation of Trina Smart Cloud has enabled real-time monitoring, prompt fault detection and display, and features such as data sharing, digital maps and health diagnosis to improve overall operational efficiency and ensure the power plant’s health.

TrinaTracker’s Smart Control System is deployed globally, with contracts exceeding 6.2GW across 16 countries and regions.