Open AccessStudy on Energy Recovery Performance of Linear Active Heave Compensation System
Author(s) -
Hui Yu,
Wenkai Wang,
Shizhen Li,
Yanjun Liu,
Chen Ji,
Lixin Gong,
Kebin Fan
Publication year - 2020
Publication title -
journal of physics. conference series
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.21
H-Index - 85
eISSN - 1742-6596
pISSN - 1742-6588
DOI - 10.1088/1742-6596/1549/4/042079
Subject(s) - compensation (psychology) , schematic , control theory (sociology) , energy recovery , generator (circuit theory) , hydraulic machinery , energy (signal processing) , engineering , computer science , mechanical engineering , power (physics) , mathematics , electrical engineering , psychology , statistics , physics , control (management) , quantum mechanics , artificial intelligence , psychoanalysis
In order to verify the feasibility of the energy recovery of the linear active heave compensation device under the descent compensation condition, the author established a schematic diagram of the hydraulic system based on the heave compensation principle, performed a simulation analysis of the hydraulic system model in a cycle, analysed energy loss of the system under specific sea conditions. Therefore, it is concluded that the gravity potential energy of the load under the descent compensation condition has great potential for recovery. Based on the results of the demonstration, the article proposes an electro-hydraulic energy recovery system of the linear active heave compensation device based on a hydraulic motor-generator. The system model is simulated and analysed in a single cycle under standard operating conditions. The results show that: When the system parameters match reasonably, the heave compensation device has a higher compensation accuracy. The energy recovery rate of the system under the down compensation condition reaches 21.6%, and the effect of energy saving is great. At the same time, simulation analysis shows that under the premise of ensuring the compensation accuracy, changes in the quantitative motor displacement and the viscous friction coefficient of the generator will affect the energy recovery efficiency to varying degrees.