Abstract
This paper proposes a novel actuation system for an offshore drilling application. It consists of three self-contained electro-hydraulic cylinders that can share and store regenerated energy. The energy saving potential of the proposed solution is analyzed through a multibody system simulation. The self-contained system demonstrates superior energy efficiency compared to the benchmark system representing the state-of-the-art approach used today (i.e., valve-controlled cylinders by means of pressure-compensated directional control valves and counter-balance valves, supplied by a centralized hydraulic power unit). Due to the”power on demand” capability, the cancellation of the throttling losses, and the opportunity to recover energy in motoring quadrants, the self-contained system consumes 83.44% less energy without affecting the system’s performance.
| Original language | English |
|---|---|
| Pages (from-to) | 89-108 |
| Number of pages | 20 |
| Journal | Modeling, Identification and Control |
| Volume | 40 |
| Issue number | 2 |
| DOIs | |
| State | Published - 2019 |
| Externally published | Yes |
Keywords
- Electrification of hydraulics
- Energy savings
- Linear actuator
- Offshore mechatronic systems
- Passive load-holding
- Proportional directional control valve
- Self-contained electro-hydraulic cylinder
