Variable-Pressure Secondary-Control with Power Recovery for Loading Hydraulic Driving Head of Rotary Drilling Rig

Abstract:

A technical challenge for large power loading test device is how to achieve both of high loading dynamic performance and high energy efficiency, consequently power recovery and reuse technology should be applied. Hydrostatic secondary control has reasonable dynamic performance for loading and benefits power recovery. However conventional secondary control based on constant pressure network (CPSCS) can still be further improved when using in loading test bench for hydraulic driving head. This paper proposes hydrostatic variable-pressure secondary-control (VPSCS), for which the corresponding system is designed. Subsequently by simulation with AMESim, the dynamic performance and energy feedback or recovery efficiency of CPSCS and VPSCS are analyzed and evaluated, and finally the works in the next step are presented. The conclusion shows VPSCS, compared with CPSCS, improves energy feedback efficiency by 18%~30% but has worse wave shape of load torque when using the servo pressure valve set designed preliminarily.

• Periodical: Advanced Materials Research (Volumes 765-767)
• Pages: 1881-1888
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.765-767.1881
• Online since: September 2013
• Authors: Wan Guo Li, Yong Ling Fu, Xiao Ye Qi, Juan Chen, Jun Gong Ma
• Keywords: Driving Head, Energy Feedback (Recovery) Efficiency, Loading System, Power Recovery, Variable-Pressure Secondary-Control

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