Energy storage system model for uninterruptible power supply of metallurgical plants

Abstract

The main reasons for implementing energy storage systems (ESS) are the excessive consumption of fossil fuels by gas piston or diesel generator sets and the poor quality of the electrical grid at the plant. These issues can even cause emergency shutdowns due to the weak dynamic response to sudden load changes of the generator. In such systems, ESS can take the backup generator unit out of service, reduce fuel consumption and mechanical loads on the generator equipment, and improve the reliability of the generator units, thereby reducing maintenance and repair costs. A lithium-ion battery-based energy storage system model has been developed for closed electrical systems, such as drilling sites. The study presents an example of modeling a real industrial process, specifically a drilling rig. The data is collected continuously over a 5-day period. The developed model is based on the principle of encapsulation (modularity), which allows it to be adapted to the needs of different metallurgical facilities involved in raw material extraction and processing or other metallurgical operations. The model enables preliminary calculations of power supply for metallurgical facilities, which increases their operational efficiency and facilitates the selection of necessary equipment.