Hybrid Electric Retrofit Demonstration for a Drilling Rig

Geotechnical drilling rigs like the CME 75 rely on diesel engines for high power output. However, conventional systems generate significant emissions and require frequent maintenance. To address these limitations, the team designed the Hybrid Electric Drill Retrofit (HEDR). It is a system for exploring the feasibility of using hybrid electric power as a sustainable alternative to conventional engines. By integrating multi-disciplinary engineering design, analysis and rapid prototyping, the team aimed to reduce emissions, lower maintenance costs and optimize energy use while maintaining drilling performance.

The team developed a system that integrates an electric motor, a generator and a battery stack to optimize power usage and extend operational lifespan. The electric motor directly interfaces with and drives the drill bit through a five-speed transmission. A battery stack powers the motor while the generator supplies supplemental energy to the batteries. A microcontroller controls this process. It manages power distribution, ensures optimal efficiency and collects real-time performance data.

The HEDR project offers a more sustainable and cost-effective alternative for field operations and demonstrates the feasibility of hybrid-electric solutions in geotechnical drilling.