Energy saving control in separate meter in and separate meter out control system. (March 2018)

• Record Type: Journal Article
• Authors: Chen, Guangrong; Wang, Junzheng; Wang, Shoukun; Zhao, Jiangbo; Shen, Wei
• Is Part Of: Control engineering practice. Volume 72(2018)
• Page Start: 138
• Page End: 150
• Publication Date: 2018-03
• Subjects: SMISMO -- Indirect adaptive robust control -- Dynamic surface control -- Fast parameter estimation -- Energy saving -- Grey predictor -- Disturbance observer; Automatic control -- Periodicals; 629.89
• DOI: 10.1016/j.conengprac.2017.09.001
• Languages: English
• ISSNs: 0967-0661

Abstract

Abstract: With the demand for energy efficiency in electro-hydraulic servo system (EHSS) increasing, the separate meter in and separate meter out (SMISMO) control system draws massive attention. In this paper, the SMISMO control system was decoupled completely into two subsystems by the proposed indirect adaptive robust dynamic surface control (IARDSC) method. Besides, a fast parameter estimation scheme was proposed to adapt to the parameter change for a better estimation performance. Also, a supply pressure controller with a disturbance observer and a supply flow rate controller with a grey model predictor were investigated and employed to save the power consumption. Finally, experimental results showed that the proposed IARDSC could achieve a good trajectory tracking performance with the fast parameter estimation. Meanwhile, the two energy saving techniques were validated.