학술논문
Model of a chopper-driven magnetic actuator in an electrohydraulic system
Document Type
Conference
Author
Source
IEMDC 2001. IEEE International Electric Machines and Drives Conference (Cat. No.01EX485) Electric machines and drives conference Electric Machines and Drives Conference, 2001. IEMDC 2001. IEEE International. :400-403 2001
Subject
Language
Abstract
An electrohydraulic system is modeled using a version of the electric circuit analysis program SPICE. The input is a typical DC voltage source and the output is a hydraulic pressure and flow. Analogies between hydraulic circuits and electrical circuits are used, along with nonlinear tables obtained by electromagnetic finite element analysis of a magnetic actuator that operates a proportional hydraulic valve. The control circuit is a chopper that produces variable pulse widths. Computed results show waveforms of chopper currents, magnetic actuator force, diode current, and hydraulic pressure.