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Pressure Control of SR Driven Hydraulic Oil-Pump Using Data based PID Controller  

Lee, Dong-Hee (Dept. of Electrical and Mechatronics Eng., Kyungsung University)
Kim, Tae-Hyoung (Dept. of Electrical and Mechatronics Eng., Kyungsung University)
Ahn, Jin-Woo (Dept. of Electrical and Mechatronics Eng., Kyungsung University)
Publication Information
Journal of Power Electronics / v.9, no.5, 2009 , pp. 800-808 More about this Journal
Abstract
This paper presents a practical method of pressure control for a hydraulic oil-pump system using an SR (Switched Reluctance) drive. For a 6Mpa grade hydraulic oil-pump, a 2.6kW SR drive is developed. In order to get high performance pressure dynamics in actual applications, a data based PID control scheme is proposed. The look-up table from a pre-measured data base produces an approximate current reference based on motor speed and oil-pressure. A PID controller can compensate for the pressure error. With the combination of the two references, the proposed control scheme can achieve fast dynamics and stable operation. Furthermore, a suitable current controller considering the nonlinear characteristics of an SRM (Switched Reluctance Motor) and practical test methods for data measuring are presented. The proposed control scheme is verified by experimental tests.
Keywords
Switched reluctance motor; Hydraulic pump; Data based PID control; Pressure control;
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
Times Cited By Web Of Science : 0  (Related Records In Web of Science)
Times Cited By SCOPUS : 2
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